1
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Xu S, Ping Y, Xu M, Wu G, Ke Y, Miao R, Qi X, Kong W. Stereoselective and site-divergent synthesis of C-glycosides. Nat Chem 2024:10.1038/s41557-024-01629-3. [PMID: 39271916 DOI: 10.1038/s41557-024-01629-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 08/13/2024] [Indexed: 09/15/2024]
Abstract
Carbohydrates play important roles in medicinal chemistry and biochemistry. However, their synthesis relies on specially designed glycosyl donors, which are often unstable and require multi-step synthesis. Furthermore, the catalytic and stereoselective installation of arylated quaternary stereocentres on sugar rings remains a formidable challenge. Here we report a facile and versatile method for the synthesis of diverse C-R (where R is an aryl, heteroaryl, alkenyl, alkynyl or alkyl) glycosides from readily available and bench-stable 1-deoxyglycosides. The reaction proceeds under mild conditions and exhibits high stereoselectivity across a broad range of glycosyl units. This protocol can be used to synthesize challenging 2-deoxyglycosides, unprotected glycosides, non-classical glycosides and deuterated glycosides. We further developed the catalyst-controlled site-divergent functionalization of carbohydrates for the synthesis of various unexplored carbohydrates containing arylated quaternary stereocentres that are inaccessible by existing methods. The synthetic utility of this strategy is further demonstrated in the synthesis of pharmaceutically relevant molecules and carbohydrates.
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Affiliation(s)
- Sheng Xu
- The Institute for Advanced Studies, Wuhan University, Wuhan, China
| | - Yuanyuan Ping
- The Institute for Advanced Studies, Wuhan University, Wuhan, China
| | - Minghao Xu
- State Key Laboratory of Power Grid Environmental Protection, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, China
| | - Guozhen Wu
- State Key Laboratory of Power Grid Environmental Protection, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, China
| | - Yang Ke
- The Institute for Advanced Studies, Wuhan University, Wuhan, China
| | - Rui Miao
- The Institute for Advanced Studies, Wuhan University, Wuhan, China
| | - Xiaotian Qi
- State Key Laboratory of Power Grid Environmental Protection, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, China.
| | - Wangqing Kong
- The Institute for Advanced Studies, Wuhan University, Wuhan, China.
- Wuhan Institute of Photochemistry and Technology, Wuhan, China.
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2
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Beleh OM, Alomari S, Weix DJ. Synthesis of Stereodefined Enones from the Cross-Electrophile Coupling of Activated Acrylic Acids with Alkyl Bromides. Org Lett 2024; 26:7217-7221. [PMID: 39162620 DOI: 10.1021/acs.orglett.4c02644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/21/2024]
Abstract
We report a one-pot synthesis of (E)-trisubstituted enones from acrylic acids through the in situ generation of a 2-pyridyl ester and subsequent cross-electrophile coupling with a nickel catalyst under reducing conditions. The scope of trisubstituted enones is broad and compatible with functionality that can be challenging in established olefination techniques. We highlight conditions necessary to suppress undesired side reactions from the α,β-unsaturated carbonyl and improve cross-electrophile coupling approaches to prepare enones.
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Affiliation(s)
- Omar M Beleh
- University of Wisconsin─Madison, Madison, Wisconsin 53706, United States
| | - Sileen Alomari
- University of Wisconsin─Madison, Madison, Wisconsin 53706, United States
| | - Daniel J Weix
- University of Wisconsin─Madison, Madison, Wisconsin 53706, United States
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3
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Luo Y, Yao J, He Y, Xu C, Liu D. Nickel-catalysed reductive C-N bond cross-coupling between aryl halides and N-chloroamides. Org Biomol Chem 2024; 22:6955-6959. [PMID: 39135428 DOI: 10.1039/d4ob00970c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
A method for the direct synthesis of N-aryl lactams and amides with aryl halides and N-chloroamides through a Ni-catalyzed reductive C-N coupling reaction has been developed. The reaction features the advantages of mild conditions, good functional group tolerance and broad substrate scope including drug-derived substrates, and also provided direct access to the key synthetic intermediates for some bioactive molecules, suggesting the practicability of this method. Finally, DFT calculations were performed to shed further light on the reaction mechanism and it was found that an amidyl radical might be involved.
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Affiliation(s)
- Yiting Luo
- School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products; College of Modern Biomedical Industry, Kunming Medical University, 1168 Western Chunrong Road, Yuhua Street, Chenggong District, Kunming City, Yunnan 650500, P. R. China.
| | - Jiacan Yao
- School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products; College of Modern Biomedical Industry, Kunming Medical University, 1168 Western Chunrong Road, Yuhua Street, Chenggong District, Kunming City, Yunnan 650500, P. R. China.
| | - Yunzhi He
- School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products; College of Modern Biomedical Industry, Kunming Medical University, 1168 Western Chunrong Road, Yuhua Street, Chenggong District, Kunming City, Yunnan 650500, P. R. China.
| | - Chang Xu
- School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products; College of Modern Biomedical Industry, Kunming Medical University, 1168 Western Chunrong Road, Yuhua Street, Chenggong District, Kunming City, Yunnan 650500, P. R. China.
| | - Dandan Liu
- School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products; College of Modern Biomedical Industry, Kunming Medical University, 1168 Western Chunrong Road, Yuhua Street, Chenggong District, Kunming City, Yunnan 650500, P. R. China.
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4
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Xiao J, Jia T, Chen S, Pan M, Li X. Ni-catalyzed enantioselective three-component reductive alkylacylation of alkenes: modular access to structurally complex α-amino ketones. Chem Sci 2024; 15:d4sc04561k. [PMID: 39246338 PMCID: PMC11376100 DOI: 10.1039/d4sc04561k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2024] [Accepted: 08/26/2024] [Indexed: 09/10/2024] Open
Abstract
Chiral alpha-amino ketones have found extensive applications as functional molecules. A nickel-catalyzed, enantioselective, and fully intermolecular three-component 1,2-alkylacylation of N-acyl enamides has been realized with tertiary alkyl bromides and carboxylic acid-derived electrophiles as the coupling reagents. This reductive coupling strategy is operationally simple, exhibiting broad substrate scope and excellent functional group tolerance using readily available starting materials and allowing rapid access to structurally complex α-amino ketone derivatives in high enantioselectivity. A suitable chiral biimidazoline ligand together with additional chelation of the amide carbonyl group in a Ni alkyl intermediate facilitates the enantioselective control by suppressing the background reaction, accounting for the excellent enantioselectivity. Mechanistic studies indicated intermediacy of radical species.
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Affiliation(s)
- Jichao Xiao
- School of Chemistry and Chemical Engineering, Shaanxi Normal University Xi'an Shanxi 710062 China
| | - Tingting Jia
- School of Chemistry and Chemical Engineering, Shaanxi Normal University Xi'an Shanxi 710062 China
| | - Shuang Chen
- School of Chemistry and Chemical Engineering, Shaanxi Normal University Xi'an Shanxi 710062 China
| | - Mengxiao Pan
- School of Chemistry and Chemical Engineering, Shaanxi Normal University Xi'an Shanxi 710062 China
| | - Xingwei Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University Xi'an Shanxi 710062 China
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong University Qingdao Shandong 266237 China
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5
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Ling B, Yao S, Ouyang S, Bai H, Zhai X, Zhu C, Li W, Xie J. Nickel-Catalyzed Highly Selective Radical C-C Coupling from Carboxylic Acids with Photoredox Catalysis. Angew Chem Int Ed Engl 2024; 63:e202405866. [PMID: 38787803 DOI: 10.1002/anie.202405866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/14/2024] [Accepted: 05/24/2024] [Indexed: 05/26/2024]
Abstract
Controlling the cross-coupling reaction between two different radicals is a long-standing challenge due to the process occurring statistically, which would lead to three products, including two homocoupling products and one cross-coupling product. Generally, the cross-coupling selectivity is achieved by the persistent radical effect (PRE) that requires the presence of a persistent radical and a transient radical, thus resulting in limited radical precursors. In this paper, a highly selective cross-coupling of alkyl radicals with acyl radicals to construct C(sp2)-C(sp3) bonds, or with alkyl radicals to construct C(sp3)-C(sp3) bonds have been achieved with the readily available carboxylic acids and their derivatives (NHPI ester) as coupling partners. The success originates from the use of tridentate ligand (2,2' : 6',2''-terpyridine) to enable radical cross-coupling process to Ni-mediated organometallic mechanism. This protocol offers a facile and flexible access to structurally diverse ketones (up to 90 % yield), and also a new solution for the challenging double decarboxylative C(sp3)-C(sp3) coupling. The broad utility and functional group tolerance are further illustrated by the late-stage functionalization of natural-occurring carboxylic acids and drugs.
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Affiliation(s)
- Bo Ling
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Shunruo Yao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Shengmao Ouyang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Haonan Bai
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Xinyi Zhai
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Chengjian Zhu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai, 200032, China
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Weipeng Li
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jin Xie
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 211198, China
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6
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Wu J, Purushothaman R, Kallert F, Homölle SL, Ackermann L. Electrochemical Glycosylation via Halogen-Atom-Transfer for C-Glycoside Assembly. ACS Catal 2024; 14:11532-11544. [PMID: 39114086 PMCID: PMC11301629 DOI: 10.1021/acscatal.4c02322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 07/04/2024] [Accepted: 07/08/2024] [Indexed: 08/10/2024]
Abstract
Glycosyl donor activation emerged as an enabling technology for anomeric functionalization, but aimed primarily at O-glycosylation. In contrast, we herein disclose mechanistically distinct electrochemical glycosyl bromide donor activations via halogen-atom transfer and anomeric C-glycosylation. The anomeric radical addition to alkenes led to C-alkyl glycoside synthesis under precious metal-free reaction conditions from readily available glycosyl bromides. The robustness of our e-XAT strategy was further mirrored by C-aryl and C-acyl glycosides assembly through nickela-electrocatalysis. Our approach provides an orthogonal strategy for glycosyl donor activation with expedient scope, hence representing a general method for direct C-glycosides assembly.
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Affiliation(s)
| | | | - Felix Kallert
- Wöhler-Research Institute
for Sustainable Chemistry, Georg-August-Universität
Göttingen, Tammannstraße
2, Göttingen 37077, Germany
| | - Simon L. Homölle
- Wöhler-Research Institute
for Sustainable Chemistry, Georg-August-Universität
Göttingen, Tammannstraße
2, Göttingen 37077, Germany
| | - Lutz Ackermann
- Wöhler-Research Institute
for Sustainable Chemistry, Georg-August-Universität
Göttingen, Tammannstraße
2, Göttingen 37077, Germany
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7
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Sun D, Gong Y, Wu Y, Chen Y, Gong H. Bis(pinacolato)diboron-Enabled Ni-Catalyzed Reductive Arylation/Vinylation of Alkyl Electrophiles. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2404301. [PMID: 38887210 PMCID: PMC11336967 DOI: 10.1002/advs.202404301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Indexed: 06/20/2024]
Abstract
Herein, the use of economically and environmentally friendly bis(pinacolato)diboron (B2Pin2) is described as a non-metallic reductant in mediating Ni-catalyzed C(sp3)-C(sp2) reductive cross-coupling of alkyl electrophiles with aryl/vinyl halides. This method exhibits excellent suitability for heteroaryl halides and alkyl halides/Katritzky salts. The present study is compatible with an in situ halogenation of alcohol method, allowing for selective mono-functionalization of diols and bio-relevant alcohols (e.g., carbohydrates). The use of B2Pin2 shows potential for easy scalability without introducing additional metal impurities into the products. It is observed for the first time in the realm of cross-electrophile coupling chemistry that B2Pin2 can sever as a reductant to reduce NiII to Ni0. This mechanistic insight may inspire the development of new reductive bond-forming methodologies that can otherwise be difficult to achieve with a metal reductant.
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Affiliation(s)
- Deli Sun
- School of Resources and Environmental EngineeringShanghai Polytechnic UniversityNo. 2360 Jinhai RoadShanghai201209China
| | - Yuxin Gong
- Center for Supramolecular Chemistry and CatalysisDepartment of ChemistryShanghai UniversityShanghai200444China
| | - Yu Wu
- Center for Supramolecular Chemistry and CatalysisDepartment of ChemistryShanghai UniversityShanghai200444China
| | - Yunrong Chen
- Center for Supramolecular Chemistry and CatalysisDepartment of ChemistryShanghai UniversityShanghai200444China
| | - Hegui Gong
- Center for Supramolecular Chemistry and CatalysisDepartment of ChemistryShanghai UniversityShanghai200444China
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8
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Chen ZH, Zheng YQ, Huang HG, Wang KH, Gong JL, Liu WB. From Quaternary Carbon to Tertiary C(sp 3)-Si and C(sp 3)-Ge Bonds: Decyanative Coupling of Malononitriles with Chlorosilanes and Chlorogermanes Enabled by Ni/Ti Dual Catalysis. J Am Chem Soc 2024; 146:14445-14452. [PMID: 38739877 DOI: 10.1021/jacs.4c04495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Transition-metal-catalyzed C-Si/Ge cross-coupling offers promising avenues for the synthesis of organosilanes/organogermanes, yet it is fraught with long-standing challenges. A Ni/Ti-catalyzed strategy is reported here, allowing the use of disubstituted malononitriles as tertiary C(sp3) coupling partners to couple with chlorosilanes and chlorogermanes, respectively. This method enables the catalytic cleavage of the C(sp3)-CN bond of the quaternary carbon followed by the formation of C(sp3)-Si/C(sp3)-Ge bonds from ubiquitously available starting materials. The efficiency and generality are showcased by a broad scope for both of the coupling partners, therefore holding the potential to synthesize structurally diverse quaternary organosilanes and organogermanes that were difficult to access previously.
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Affiliation(s)
- Zi-Hao Chen
- Hubei Research Center of Fundamental Science-Chemistry, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Yu-Qing Zheng
- Hubei Research Center of Fundamental Science-Chemistry, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Hong-Gui Huang
- Hubei Research Center of Fundamental Science-Chemistry, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Ke-Hao Wang
- Hubei Research Center of Fundamental Science-Chemistry, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Jun-Lin Gong
- Hubei Research Center of Fundamental Science-Chemistry, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Wen-Bo Liu
- Hubei Research Center of Fundamental Science-Chemistry, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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9
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Pradhan P, Moktan S, Biswas A, Das A, Lenka R, Kancharla PK. Triple Role of Proton Sponge (DMAN) in the Palladium-Catalyzed Direct Stereoselective Synthesis of C-Aryl Glycosides from Glycals. Org Lett 2024; 26:3563-3568. [PMID: 38652887 DOI: 10.1021/acs.orglett.4c00997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
The triple role of 1,8-bis(dimethylamino)naphthalene (proton sponge) as a reductant, ligand precursor, and organic base in the palladium-catalyzed Heck-type coupling reaction of glycals with aryl iodides affords the rapid and stereoselective synthesis of 2',3'-unsaturated α-C-aryl glycosides in excellent yields. The role of the proton sponge in reducing palladium(II) to (0) has been studied using cyclic voltammetry, UV-vis, HRMS, and other spectroscopic techniques. This is the first example of a palladium proton sponge complex utilized in coupling reactions. The method is observed to be tolerant of various functional groups, as demonstrated by the huge substrate scope. Moreover, the 2',3'-unsaturated α-C-aryl glycosides were also converted to 3-keto-β-C-glycosides under sterically hindered pyridinium salt catalysis via a ring-opening and -closing mechanism.
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Affiliation(s)
- Priyanka Pradhan
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Sangay Moktan
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Ashish Biswas
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Animesh Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Rajesh Lenka
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Pavan K Kancharla
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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10
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Wang T, Guan Y, Zhang T, Liang Y. Ligand Relay for Nickel-Catalyzed Decarbonylative Alkylation of Aroyl Chlorides. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306923. [PMID: 38088530 PMCID: PMC10916626 DOI: 10.1002/advs.202306923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/26/2023] [Indexed: 03/07/2024]
Abstract
Transition metal-catalyzed direct decarboxylative transformations of aromatic carboxylic acids usually require high temperatures, which limit the substrate's scope, especially for late-stage applications. The development of the selective decarbonylative of carboxylic acid derivatives, especially the most fundamental aroyl chlorides, with stable and cheap electrophiles under mild conditions is highly desirable and meaningful, but remains challenging. Herein, a strategy of nickel-catalyzed decarbonylative alkylation of aroyl chlorides via phosphine/nitrogen ligand relay is reported. The simple phosphine ligand is found essential for the decarbonylation step, while the nitrogen ligand promotes the cross-electrophile coupling. Such a ligand relay system can effectively and orderly carry out the catalytic process at room temperature, utilizing easily available aroyl chlorides as an aryl electrophile for reductive alkylation. This discovery provides a new strategy for direct decarbonylative coupling, features operationally simple, mild conditions, and excellent functional group tolerance. The mild approach is applied to the late-stage methylation of various pharmaceuticals. Extensive experiments are carried out to provide insights into the reaction pathway and support the ligand relay process.
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Affiliation(s)
- Tian‐Zhang Wang
- School of Chemistry and Chemical EngineeringShandong UniversityJinan250100China
| | - Yu‐Qiu Guan
- School of Chemistry and Chemical EngineeringShandong UniversityJinan250100China
| | - Tian‐Yu Zhang
- School of Chemistry and Chemical EngineeringShandong UniversityJinan250100China
| | - Yu‐Feng Liang
- School of Chemistry and Chemical EngineeringShandong UniversityJinan250100China
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11
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Yu C, Xu Y, Zeng M, Wang J, Dai W, Wang J, Liu H. Direct Construction of C-Alkyl Glycosides from Non-Activated Olefins via Nickel-Catalyzed C(sp 3)─C(sp 3) Coupling Reaction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307226. [PMID: 38235616 DOI: 10.1002/advs.202307226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 12/05/2023] [Indexed: 01/19/2024]
Abstract
Among C-glycosides, C-alkyl glycosides are significant building blocks for natural products and glycopeptides. However, research on efficient construction methods for C-alkyl glycosides remains relatively limited. Compared with Michael acceptors, non-activated olefins are more challenging substrates and have rarely been employed in the construction of C-glycosides. Here, a highly efficient and convenient approach for the synthesis of C-alkyl glycosides through a nickel-catalyzed C(sp3)-C(sp3) coupling reaction is presented. A distinctive feature of this method is its utilization of non-activated olefins as the anomeric radical acceptors for hydroalkylation, allowing for the direct formation of C-glycoside bonds in a single step. Furthermore, this method demonstrates excellent compatibility with a broad scope of highly reactive functional groups. Mechanistic investigations suggest that the reaction proceeds via a free radical pathway, leading predominantly to the formation of products with α-configuration. Overall, this innovative methodology offers a versatile and practical approach for the synthesis of C-alkyl glycosides, offering new avenues for the production of intricate glycosides with potential applications in drug discovery and chemical biology.
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Affiliation(s)
- Changyue Yu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yinghuan Xu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Mingjie Zeng
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Jingjing Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenhao Dai
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jiang Wang
- Lingang Laboratory, Shanghai, 200031, China
| | - Hong Liu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmacy, University of Chinese Academy of Sciences, Beijing, 100049, China
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
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12
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Zhang L, Zeng W, Xie D, Li J, Ma X. Nickel and Chiral Phosphoric Acid Cocatalysis Enables Synthesis of C-Acyl Glycosides. Org Lett 2024; 26:1332-1337. [PMID: 38330288 DOI: 10.1021/acs.orglett.3c04159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
We disclosed a Ni/CPA cocatalyzed protocol to access diverse C-acyl glycosides under mild conditions with broad functional group compatibility through the coupling of readily available glycosyl bromides and carboxylic esters. The potential application of the methodology was demonstrated by the C-acyl glycosylation of bioactive molecules and the transformation of products to a variety of value-added molecules. Mechanistic studies revealed that CPA might serve as a bifunctional H-bond catalyst to activate carboxylic esters and nickel catalyst.
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Affiliation(s)
- Li Zhang
- Natural Products Research Centre, Chengdu Institute of Biology, No. 9, South Renmin Road, Chengdu, 610041, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Wei Zeng
- Natural Products Research Centre, Chengdu Institute of Biology, No. 9, South Renmin Road, Chengdu, 610041, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Demeng Xie
- Natural Products Research Centre, Chengdu Institute of Biology, No. 9, South Renmin Road, Chengdu, 610041, People's Republic of China
| | - Jiangtao Li
- Natural Products Research Centre, Chengdu Institute of Biology, No. 9, South Renmin Road, Chengdu, 610041, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Xiaofeng Ma
- Natural Products Research Centre, Chengdu Institute of Biology, No. 9, South Renmin Road, Chengdu, 610041, People's Republic of China
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13
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Wang W, Shen C, Zhang L, Dong K. Synthesis of Chiral α-Aryl Ketones by Photoredox/Nickel-Catalyzed Enantioconvergent Acyl Cross-Coupling with Organotrifluoroborate. Org Lett 2024; 26:850-854. [PMID: 38251833 DOI: 10.1021/acs.orglett.3c04004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Photoredox/nickel-catalyzed enantioconvergent acyl cross-coupling of carboxylic derivatives with racemic secondary organotrifluoroborate was developed for the synthesis of an enolizable chiral α-aryl ketone under mild neutral conditions. Moderate to high yields and good enantioselectivities were achieved.
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Affiliation(s)
- Weichen Wang
- Shanghai Frontiers Science Center of Molecule Intelligent Syntheses and Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Chaoren Shen
- Shanghai Frontiers Science Center of Molecule Intelligent Syntheses and Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Linli Zhang
- Shanghai Frontiers Science Center of Molecule Intelligent Syntheses and Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Kaiwu Dong
- Shanghai Frontiers Science Center of Molecule Intelligent Syntheses and Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
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14
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Gorelik DJ, Desai SP, Jdanova S, Turner JA, Taylor MS. Transformations of carbohydrate derivatives enabled by photocatalysis and visible light photochemistry. Chem Sci 2024; 15:1204-1236. [PMID: 38274059 PMCID: PMC10806712 DOI: 10.1039/d3sc05400d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 12/13/2023] [Indexed: 01/27/2024] Open
Abstract
This review article highlights the diverse ways in which recent developments in the areas of photocatalysis and visible light photochemistry are impacting synthetic carbohydrate chemistry. The major topics covered are photocatalytic glycosylations, generation of radicals at the anomeric position, transformations involving radical formation at non-anomeric positions, additions to glycals, processes initiated by photocatalytic hydrogen atom transfer from sugars, and functional group interconversions at OH and SH groups. Factors influencing stereo- and site-selectivity in these processes, along with mechanistic aspects, are discussed.
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Affiliation(s)
- Daniel J Gorelik
- Department of Chemistry, University of Toronto 80 St. George St. Toronto ON M5S 3H6 Canada
| | - Shrey P Desai
- Department of Chemistry, University of Toronto 80 St. George St. Toronto ON M5S 3H6 Canada
| | - Sofia Jdanova
- Department of Chemistry, University of Toronto 80 St. George St. Toronto ON M5S 3H6 Canada
| | - Julia A Turner
- Department of Chemistry, University of Toronto 80 St. George St. Toronto ON M5S 3H6 Canada
| | - Mark S Taylor
- Department of Chemistry, University of Toronto 80 St. George St. Toronto ON M5S 3H6 Canada
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15
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Liu Q, Lin T, Wang YE, Liang W, Cao L, Sheng X, Xiong D, Mao J. Nickel-Catalyzed Reductive Arylation of α-Bromo Sulfoxide. Org Lett 2023; 25:9153-9157. [PMID: 38096429 DOI: 10.1021/acs.orglett.3c03619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
Abstract
A nickel-catalyzed cross-electrophile coupling of aryl iodides with α-bromo sulfoxide to access a diverse array of aryl benzyl sulfoxides has been discovered. These reactions occurred under mild conditions with excellent functional group tolerance so that optically enriched sulfoxides could be coupled with aryl iodides, generating corresponding sulfoxides with excellent stereochemical integrity. Furthermore, the scalability of this transformation was demonstrated. Initial mechanistic studies revealed that the reaction undergoes a radical pathway.
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Affiliation(s)
- Qiang Liu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Tingzhi Lin
- School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Yan-En Wang
- College of Science, Hebei Agricultural University, Baoding 071000, P. R. China
| | - Wenbiao Liang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Liuying Cao
- School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Xutao Sheng
- School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Dan Xiong
- School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Jianyou Mao
- School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
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16
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Gao Y, Baran PS. Nickel-Catalyzed Enantioselective Decarboxylative Acylation: Rapid, Modular Access to α-Amino Ketones. Angew Chem Int Ed Engl 2023; 62:e202315203. [PMID: 37939247 PMCID: PMC10842042 DOI: 10.1002/anie.202315203] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 11/10/2023]
Abstract
A new approach to the enantiocontrolled synthesis of α-amino ketone derivatives is disclosed by employing a decarboxylative acylation strategy. Thus, when an acyl chloride and an α-amido-containing redox-active ester are exposed to a nickel catalyst, chiral ligand, and metal reductant, α-amido ketones are produced in good yield and high ee. The reaction exhibits broad substrate scope, can be easily scaled up, and is applied to dramatically simplify the synthesis of several known structures.
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Affiliation(s)
- Yang Gao
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Phil S Baran
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
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17
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Wei Y, Lin LQH, Lee BC, Koh MJ. Recent Advances in First-Row Transition Metal-Catalyzed Reductive Coupling Reactions for π-Bond Functionalization and C-Glycosylation. Acc Chem Res 2023; 56:3292-3312. [PMID: 37917928 DOI: 10.1021/acs.accounts.3c00531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
ConspectusEfficient construction of ubiquitous carbon-carbon bonds between two electrophiles has garnered interest in recent decades, particularly if it is mediated by nonprecious, first-row transition metals. Reductive coupling has advantages over traditional cross-coupling by obviating the need for stoichiometric air- and moisture-sensitive organometallic reagents. By harnessing transition metal-catalyzed reductive coupling as a powerful tool, intricate molecular architectures can be readily assembled through the installation of two C-C bonds across π systems (alkenes/alkynes) via reaction with two appropriate electrophiles. Despite advances in reductive alkene difunctionalization, there remains significant potential for the discovery of novel reaction pathways. In this regard, development of reductive protocols that enable the union of challenging alkyl/alkynyl electrophiles in high regio- and chemoselectivity remains a highly sought-after goal.Apart from π-bond functionalization, reductive coupling has found application in carbohydrate chemistry, particularly in the synthesis of valuable C-glycosyl compounds. In this vein, suitable glycosyl donors can be used to generate reactive glycosyl radical intermediates under reductive conditions. Through elaborately designed reactions, these intermediates can be trapped to furnish pharmaceutically relevant glycoconjugates. Consequently, diversification in C-glycosyl compound synthesis using first-row transition metal catalysis holds strong appeal.In this Account, we summarize our efforts in the development of first-row transition metal-catalyzed reductive coupling reactions for applications in alkene/alkyne functionalization and C-glycosylation. We will first discuss the nickel (Ni)-catalyzed reductive difunctionalization of alkenes, aided by an 8-aminoquinoline (AQ) directing auxiliary. Next, we highlight the Ni-catalyzed hydroalkylation of alkenyl amides tethered with a similar AQ-derived directing auxiliary. Lastly, we discuss an efficient synthesis of 1,3-enynes involving site- and stereoselective reductive coupling of terminal alkynes with alkynyl halides and NHPI esters.Beyond alkene dicarbofunctionalization, we extended the paradigm of transition metal-catalyzed reductive coupling toward the construction of C-glycosidic linkages in carbohydrates. By employing an earth-abundant iron (Fe)-based catalyst, we show that useful glycosyl radicals can be generated from glycosyl chlorides under reductive conditions. These intermediates can be captured in C-C bond formation to furnish valuable C-aryl, C-alkenyl, and C-alkynyl glycosyl compounds with high diastereoselectivity. Our Ni-catalyzed multicomponent union of glycosyl chlorides, aryl/alkyl iodides, and isobutyl chloroformate under reductive conditions led to the stereoselective synthesis of C-acyl glycosides. In addition to Fe and Ni, we discovered a Ti-catalyzed/Mn-promoted synthetic route to access C-alkyl and C-alkenyl glycosyl compounds, through the reaction of glycosyl chlorides with electron-deficient alkenes/alkynes. We further developed an electron donor-acceptor (EDA) photoactivation system leveraging decarboxylative and deaminative strategies for C-glycosylation under Ni catalysis. This approach has been demonstrated to selectively activate carboxyl and amino motifs to furnish glycopeptide conjugates. Finally, through two distinct catalytic transformations of bench-stable heteroaryl glycosyl sulfones, we achieved stereodivergent access to both α- and β-anomers of C-aryl glycosides, one of which involves a Ni-catalyzed reductive coupling with aryl iodides.The findings presented in this Account are anticipated to have far-reaching implications beyond our research. We foresee that these results will pave the way for new transformations founded on the concept of reductive coupling, leading to the discovery of novel applications in the future.
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Affiliation(s)
- Yi Wei
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Republic of Singapore, 117544
| | - Leroy Qi Hao Lin
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Republic of Singapore, 117544
| | - Boon Chong Lee
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Republic of Singapore, 117544
| | - Ming Joo Koh
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Republic of Singapore, 117544
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18
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Chindan B, Syam A, Mahendran H, Rasappan R. Synthesis of α-Vinyltrialkoxysilanes via Nickel-Mediated Cross-Electrophile Coupling Reactions. Org Lett 2023; 25:7751-7756. [PMID: 37844143 DOI: 10.1021/acs.orglett.3c03206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
Vinyltrialkoxysilanes are indispensable for organic synthesis, particularly cross-coupling reactions. Hydrosilylation of alkynes inevitably yields α- and β-isomers of vinyltrialkoxysilanes even with complex ligands and catalysts, limiting its usage in organic synthesis. We report the synthesis of α-vinyltrialkoxysilanes via cross-electrophile C(sp2)-C(sp2) coupling of bromoalkenes. The method is quite compatible with functional groups under milder reaction conditions. The gram-scale synthesis of most substrates is impressive. The intermediacy of vinyl iodide and radical escape rebound path are supported by mechanistic studies.
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Affiliation(s)
- Bincy Chindan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| | - Anagha Syam
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| | - Hariharan Mahendran
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| | - Ramesh Rasappan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
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19
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Li J, Cao C, Wu H, Dong K. Nickel/Titanocene-Catalyzed Electrophilic Acylation Coupling of Styrene Oxides. Org Lett 2023; 25:6959-6963. [PMID: 37726896 DOI: 10.1021/acs.orglett.3c02402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
The cross-coupling of epoxides with acyl chlorides or anhydrides by a nickel/titanocene dual catalytic system is established. A variety of synthetically useful β-hydroxy ketones were obtained in good to high yields by using modified pyridine-oxazoline ligand. The reaction proceeds via the cooperation of titanocene-catalyzed ring-opening of epoxides and nickel-catalyzed acylation of the benzylic radical intermediate.
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Affiliation(s)
- Jincan Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Chang Cao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Haihong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Kaiwu Dong
- Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
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20
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Jiang Y, Zhang Y, Lee BC, Koh MJ. Diversification of Glycosyl Compounds via Glycosyl Radicals. Angew Chem Int Ed Engl 2023; 62:e202305138. [PMID: 37278303 DOI: 10.1002/anie.202305138] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 06/07/2023]
Abstract
Glycosyl radical functionalization is one of the central topics in synthetic carbohydrate chemistry. Recent advances in metal-catalyzed cross-coupling chemistry and metallaphotoredox catalysis provided powerful platforms for glycosyl radical diversification. In particular, the discovery of new glycosyl radical precursors in conjunction with these advanced reaction technologies have significantly expanded the space for glycosyl compound synthesis. In this Review, we highlight the most recent progress in this area starting from 2021, and the reports included will be categorized based on different reaction types for better clarity.
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Affiliation(s)
- Yi Jiang
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Singapore, 117544, Republic of Singapore
| | - Yijun Zhang
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Singapore, 117544, Republic of Singapore
- Department of Chemistry, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, China
| | - Boon Chong Lee
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Singapore, 117544, Republic of Singapore
| | - Ming Joo Koh
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Singapore, 117544, Republic of Singapore
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21
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Chen F, Xu XH, Chen ZH, Chen Y, Qing FL. Visible-light-induced nickel-catalyzed α-hydroxytrifluoroethylation of alkyl carboxylic acids: Access to trifluoromethyl alkyl acyloins. Beilstein J Org Chem 2023; 19:1372-1378. [PMID: 37736392 PMCID: PMC10509543 DOI: 10.3762/bjoc.19.98] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 08/30/2023] [Indexed: 09/23/2023] Open
Abstract
A visible-light-induced nickel-catalyzed cross coupling of alkyl carboxylic acids with N-trifluoroethoxyphthalimide is described. Under purple light irradiation, an α-hydroxytrifluoroethyl radical generated from a photoactive electron donor-acceptor complex between Hantzsch ester and N-trifluoroethoxyphthalimide was subsequently engaged in a nickel-catalyzed coupling reaction with in situ-activated alkyl carboxylic acids. This convenient protocol does not require photocatalysts and metal reductants, providing a straightforward and efficient access to trifluoromethyl alkyl acyloins in good yields with broad substrate compatibility. The complex bioactive molecules were also compatible with this catalytic system to afford the corresponding products.
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Affiliation(s)
- Feng Chen
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Xiu-Hua Xu
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Zeng-Hao Chen
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Yue Chen
- Shandong Dongyue Polymer Material Co., Ltd., Zibo 256401, China
| | - Feng-Ling Qing
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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22
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Jiao RQ, Ding YN, Li M, Shi WY, Chen X, Zhang Z, Wei WX, Li XS, Gong XP, Luan YY, Liu XY, Liang YM. Visible-Light-Mediated Synthesis of C-Alkyl Glycosides via Glycosyl Radical Addition and Aryl Migration. Org Lett 2023; 25:6099-6104. [PMID: 37578285 DOI: 10.1021/acs.orglett.3c01988] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
A visible-light-induced glycoarylation of activated olefins has been accomplished. Glycosyl radicals are generated via radical transfer strategies between (TMS)3SiOH and glycosyl bromides. Subsequent radical translocation and rapid 1,4-aryl migration form β-sugar amide derivatives, and eight types of sugars are compatible with this reaction. Further, the cascade reaction produced a quaternary carbon center with good functional group adaptability and high regioselectivity in mild conditions.
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Affiliation(s)
- Rui-Qiang Jiao
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Ya-Nan Ding
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Ming Li
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Wei-Yu Shi
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xi Chen
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Zhe Zhang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Wan-Xu Wei
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xue-Song Li
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xiao-Ping Gong
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yu-Yong Luan
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xue-Yuan Liu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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23
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Kiran INC, Kranthikumar R. Nickel-Catalyzed Deaminative Ketone Synthesis: Coupling of Alkylpyridinium Salts with Thiopyridine Esters via C-N Bond Activation. Org Lett 2023; 25:3623-3627. [PMID: 37184214 DOI: 10.1021/acs.orglett.3c00943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
A direct synthesis of ketones by the nickel-catalyzed deaminative cross-coupling of alkylpyridinium salts with thiopyridine esters has been reported. The reaction works well for both primary and secondary amines. This approach affords a highly valuable vista for the facile synthesis of ketones from easily accessible feedstock chemicals. The utility of this method is demonstrated through the functionalization of complex bioactives and pharmaceuticals.
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Affiliation(s)
- I N Chaithanya Kiran
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Ramagonolla Kranthikumar
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
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24
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Rao N, Li YZ, Luo YC, Zhang Y, Zhang X. Nickel-Catalyzed Multicomponent Carbodifluoroalkylation of Electron-Deficient Alkenes. ACS Catal 2023. [DOI: 10.1021/acscatal.2c06149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Affiliation(s)
- Na Rao
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yun-Ze Li
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yun-Cheng Luo
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yanxia Zhang
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xingang Zhang
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- School of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China
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25
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Zhou J, Wang D, Xu W, Hu Z, Xu T. Enantioselective C(sp 3)-C(sp 3) Reductive Cross-Electrophile Coupling of Unactivated Alkyl Halides with α-Chloroboronates via Dual Nickel/Photoredox Catalysis. J Am Chem Soc 2023; 145:2081-2087. [PMID: 36688920 DOI: 10.1021/jacs.2c13220] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Substantial advances in enantioconvergent C(sp3)-C(sp3) bond formations have been made with nickel-catalyzed cross-coupling of racemic alkyl electrophiles with organometallic reagents or nickel-hydride-catalyzed hydrocarbonation of alkenes. Herein, we report an unprecedented enantioselective C(sp3)-C(sp3) reductive cross-coupling by the direct utilization of two different alkyl halides with dual nickel/photoredox catalysis system. This highly selective coupling of racemic α-chloroboronates and unactivated alkyl iodides furnishes chiral secondary alkyl boronic esters, which serve as useful and important intermediates in the realm of organic synthesis and enable a desirable protocol to fast construction of enantioenriched complex molecules.
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Affiliation(s)
- Jun Zhou
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, People's Republic of China
| | - Dong Wang
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, People's Republic of China
| | - Wenhao Xu
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, People's Republic of China
| | - Zihao Hu
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, People's Republic of China
| | - Tao Xu
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, People's Republic of China
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26
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Tang S, Zhang HH, Yu S. Enantioselective reductive allylic alkylation enabled by dual photoredox/palladium catalysis. Chem Commun (Camb) 2023; 59:1153-1156. [PMID: 36628922 DOI: 10.1039/d2cc06705f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A dual photoredox/palladium catalyzed regio- and enantioselective reductive cross-coupling of allylic acetates with tertiary/secondary alkyl bromides has been achieved, and Hantzsch ester is used as a homogeneous organic reductant. This straightforward protocol enables the stereoselective construction of C(sp3)-C(sp3) bonds under mild reaction conditions. Mechanistic studies suggest that this reaction involves radical pathways and a chiral Pd complex enables the control of the regio- and enantioselectivities.
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Affiliation(s)
- Sheng Tang
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Centre (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Hong-Hao Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Centre (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China. .,School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.
| | - Shouyun Yu
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Centre (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
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27
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Whyte A, Yoon TP. Selective Cross-Ketonization of Carboxylic Acids Enabled by Metallaphotoredox Catalysis. Angew Chem Int Ed Engl 2022; 61:e202213739. [PMID: 36318472 PMCID: PMC9771944 DOI: 10.1002/anie.202213739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Indexed: 11/30/2022]
Abstract
Carboxylic acids are attractive building blocks for synthetic chemistry because they are chemically stable, abundant, and commercially available with substantial structural diversity. The process of combining two carboxylic acids to furnish a ketone is termed ketonization. This is a potentially valuable transformation that has been underutilized in organic synthesis due to the harsh reaction conditions generally required and the lack of selectivity obtained when coupling two distinct carboxylic acids. We report herein a metallaphotoredox strategy that selectively generates unsymmetrical ketones via cross-ketonization of two structurally dissimilar carboxylic acids. Cross-selectivity is achieved by exploiting divergent reactivity of differentially substituted acids towards critical one- and two-electron processes in the proposed coupling mechanism. This method is broadly applicable to a variety of functionalized carboxylic acids. It can also be applied to acids of similar steric profile by exploiting differences in their relative rates of decarboxylation.
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Affiliation(s)
- Andrew Whyte
- Department of Chemistry, University of Wisconsin–Madison, 1101 University Avenue, Madison WI 53706 (USA)
| | - Tehshik P. Yoon
- Department of Chemistry, University of Wisconsin–Madison, 1101 University Avenue, Madison WI 53706 (USA)
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28
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Boehlich GJ, Sterzel H, Rehbein J, Schützenmeister N. Efficient Copper-Catalyzed Highly Stereoselective Synthesis of Unprotected C-Acyl Manno-, Rhamno- and Lyxopyranosides. Chemistry 2022; 28:e202202619. [PMID: 36098245 PMCID: PMC10091970 DOI: 10.1002/chem.202202619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Indexed: 11/09/2022]
Abstract
Due to their high stability towards enzymatic hydrolysis C-acyl glycosidic compounds are useful synthetic intermediates for potential candidates in drug discovery. Syntheses for C-acyl mannosides have remained scarce and usually employ donors obtained from lengthy syntheses. Furthermore, syntheses of unprotected C-acyl mannosides have not been reported so far, due to the incapability of the C-acyl mannoside motif with deprotection conditions for protective groups commonly used in carbohydrate chemistry. Herein, we report an efficient and highly α-selective four-step one-pot method for the synthesis of C-acyl α-d-manno-, l-rhamno- and d-lyxopyranosides from easily accessible persilylated monosaccharides and dithianes requiring only trace amounts of a copper source as catalyst and explain the crucial role of the catalyst by mechanistic studies. Furthermore, the C-acyl α-glycosides were easily isomerized to give rapid access to their β-anomers.
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Affiliation(s)
- Gordon Jacob Boehlich
- Fakultät für Chemie und PharmazieUniversität HamburgBundesstraße 4520146HamburgGermany
| | - Hannes Sterzel
- Fachbereich Chemie, Institut für PharmazieUniversität RegensburgUniversitätsstraße 3193053RegensburgGermany
| | - Julia Rehbein
- Fachbereich Chemie, Institut für PharmazieUniversität RegensburgUniversitätsstraße 3193053RegensburgGermany
| | - Nina Schützenmeister
- Department of Pharmaceutical SciencesUniversity of ViennaJosef-Holaubek-Platz 21090ViennaAustria
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29
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Ji H, Lin D, Tai L, Li X, Shi Y, Han Q, Chen LA. Nickel-Catalyzed Enantioselective Coupling of Acid Chlorides with α-Bromobenzoates: An Asymmetric Acyloin Synthesis. J Am Chem Soc 2022; 144:23019-23029. [DOI: 10.1021/jacs.2c10072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Haiting Ji
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Dengkai Lin
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Lanzhu Tai
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xinyu Li
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Yuxuan Shi
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Qiaorong Han
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Liang-An Chen
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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30
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Afzal U, Bilal M, Zubair M, Rasool N, Adnan Ali Shah S, Amiruddin Zakaria Z. Stereospecific/stereoselective Nickel catalyzed reductive cross-coupling: An efficient tool for the synthesis of biological active targeted molecules. JOURNAL OF SAUDI CHEMICAL SOCIETY 2022. [DOI: 10.1016/j.jscs.2022.101589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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31
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Lin Q, Gong H, Wu F. Ni-Catalyzed Reductive Coupling of Heteroaryl Bromides with Tertiary Alkyl Halides. Org Lett 2022; 24:8996-9000. [DOI: 10.1021/acs.orglett.2c03598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- Quan Lin
- School of Materials Science and Engineering, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China
| | - Hegui Gong
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China
| | - Fan Wu
- Institute of Drug Discovery Technology and Qian Xuesen Collaborative Research Center of Astrochemistry and Space Life Sciences, Ningbo University, Ningbo, Zhejiang 315211, China
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32
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Ghosh T, Nokami T. Recent development of stereoselective C-glycosylation via generation of glycosyl radical. Carbohydr Res 2022; 522:108677. [DOI: 10.1016/j.carres.2022.108677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 08/31/2022] [Accepted: 09/07/2022] [Indexed: 11/27/2022]
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33
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Whyte A, Yoon TP. Selective Cross‐Ketonization of Carboxylic Acids Enabled by Metallaphotoredox Catalysis. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202213739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- Andrew Whyte
- Department of Chemistry University of Wisconsin-Madison 1101 University Avenue Madison WI 53706 USA
| | - Tehshik P. Yoon
- Department of Chemistry University of Wisconsin-Madison 1101 University Avenue Madison WI 53706 USA
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34
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Lombardi L, Cerveri A, Giovanelli R, Castiñeira Reis M, Silva López C, Bertuzzi G, Bandini M. Direct Synthesis of α-Aryl-α-Trifluoromethyl Alcohols via Nickel Catalyzed Cross-Electrophile Coupling. Angew Chem Int Ed Engl 2022; 61:e202211732. [PMID: 36161744 PMCID: PMC9828748 DOI: 10.1002/anie.202211732] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Indexed: 01/12/2023]
Abstract
A nickel-catalyzed reductive cross-electrophile coupling between the redox-active N-trifluoroethoxyphthalimide and iodoarenes is documented. The protocol reproduces a formal arylation of trifluoroacetaldehyde under mild conditions in high yields (up to 88 %) and with large functional group tolerance (30 examples). A combined computational and experimental investigation revealed a pivotal solvent assisted 1,2-Hydrogen Atom Transfer (HAT) process to generate a nucleophilic α-hydroxy-α-trifluoromethyl C-centered radical for the Csp2 -Csp3 bond forming process.
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Affiliation(s)
- Lorenzo Lombardi
- Dipartimento di Chimica “Giacomo Ciamician”Alma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly
- Center for Chemical Catalysis—CAlma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly
| | - Alessandro Cerveri
- Dipartimento di Chimica “Giacomo Ciamician”Alma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly
| | - Riccardo Giovanelli
- Dipartimento di Chimica “Giacomo Ciamician”Alma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly
- Center for Chemical Catalysis—CAlma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly
| | | | | | - Giulio Bertuzzi
- Dipartimento di Chimica “Giacomo Ciamician”Alma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly
- Center for Chemical Catalysis—CAlma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly
| | - Marco Bandini
- Dipartimento di Chimica “Giacomo Ciamician”Alma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly
- Center for Chemical Catalysis—CAlma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly
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35
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Jiang X, Sheng FT, Zhang Y, Deng G, Zhu S. Ligand Relay Catalysis Enables Asymmetric Migratory Reductive Acylation of Olefins or Alkyl Halides. J Am Chem Soc 2022; 144:21448-21456. [DOI: 10.1021/jacs.2c10785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Xiaoli Jiang
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing210093, China
| | - Feng-Tao Sheng
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing210093, China
| | - Yao Zhang
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing210093, China
| | - Gao Deng
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing210093, China
| | - Shaolin Zhu
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing210093, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang453007, China
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36
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Chen G, Zhou R, Zhang X, Xiao X, Kramer S, Cheng GJ, Lian Z. Carbonylative Cross-Electrophile Coupling between Aryl Bromides and Aryl Triflates Enabled by Palladium and Rhodium Cooperative Catalysis and CO as Reductant. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Gang Chen
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P. R. China
| | - Ruoxin Zhou
- Warshel Institute for Computational Biology, School of Life and Health Sciences, School of Medicine, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, P. R. China
| | - Xuemei Zhang
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P. R. China
| | - Xue Xiao
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P. R. China
| | - Søren Kramer
- Department of Chemistry, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Gui-Juan Cheng
- Warshel Institute for Computational Biology, School of Life and Health Sciences, School of Medicine, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, P. R. China
| | - Zhong Lian
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P. R. China
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37
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Liu J, Hong Y, Liu YL, Tan JY, Liu HM, Dai GL, Chen SL, Liu T, Li JH, Tang S. Nickel-Catalyzed Radical Heck-Type C(sp 3)–C(sp 2) Coupling Cascades Enabled by Bromoalkane-Directed 1,4-Aryl Shift: Access to Olefinated Arylalanines. Org Lett 2022; 24:8192-8196. [DOI: 10.1021/acs.orglett.2c03250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Jian Liu
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
| | - Yu Hong
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
| | - Yin-Ling Liu
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
| | - Jing-Ying Tan
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
| | - Hao-Miao Liu
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
| | - Gang-Liang Dai
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
| | - Shi-Lu Chen
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Institute of Technology, Beijing 100081, China
| | - Ting Liu
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
| | - Jin-Heng Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Shi Tang
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
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38
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Jones A, Williams MTJ, Morrill LC, Browne DL. Mechanical Activation of Zero-Valent Metal Reductants for Nickel-Catalyzed Cross-Electrophile Coupling. ACS Catal 2022; 12:13681-13689. [PMID: 36366760 PMCID: PMC9638985 DOI: 10.1021/acscatal.2c03117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 09/27/2022] [Indexed: 12/04/2022]
Abstract
The cross-electrophile coupling of either twisted-amides or heteroaryl halides with alkyl halides, enabled by ball-milling, is herein described. The operationally simple nickel-catalyzed process has no requirement for inert atmosphere or dry solvents and delivers the corresponding acylated or heteroarylated products across a broad range of substrates. Key to negating the necessity of inert reaction conditions is the mechanical activation of the raw metal terminal reductant: manganese in the case of twisted amides and zinc for heteroaryl halides.
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Affiliation(s)
- Andrew
C. Jones
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, U.K.
| | - Matthew T. J. Williams
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, U.K.
| | - Louis C. Morrill
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, U.K.
| | - Duncan L. Browne
- School
of Pharmacy, University College London, 29-39 Brunswick Square, Bloomsbury, London, WC1N 1AX, U.K.
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39
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Kerackian T, Bouyssi D, Pilet G, Médebielle M, Monteiro N, Vantourout JC, Amgoune A. Nickel-Catalyzed Electro-Reductive Cross-Coupling of Aliphatic N-Acyl Imides with Alkyl Halides as a Strategy for Dialkyl Ketone Synthesis: Scope and Mechanistic Investigations. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Taline Kerackian
- Université Lyon, Université Lyon 1, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS, UMR 5246 du CNRS), 1 rue Victor Grignard, 69100 Villeurbanne, France
| | - Didier Bouyssi
- Université Lyon, Université Lyon 1, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS, UMR 5246 du CNRS), 1 rue Victor Grignard, 69100 Villeurbanne, France
| | - Guillaume Pilet
- Université Lyon, Université Lyon 1, Laboratoire des Multimatériaux et Interfaces (LMI, UMR 5615 du CNRS), 6 rue Victor Grignard, 69100 Villeurbanne, France
| | - Maurice Médebielle
- Université Lyon, Université Lyon 1, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS, UMR 5246 du CNRS), 1 rue Victor Grignard, 69100 Villeurbanne, France
| | - Nuno Monteiro
- Université Lyon, Université Lyon 1, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS, UMR 5246 du CNRS), 1 rue Victor Grignard, 69100 Villeurbanne, France
| | - Julien C. Vantourout
- Université Lyon, Université Lyon 1, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS, UMR 5246 du CNRS), 1 rue Victor Grignard, 69100 Villeurbanne, France
| | - Abderrahmane Amgoune
- Université Lyon, Université Lyon 1, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS, UMR 5246 du CNRS), 1 rue Victor Grignard, 69100 Villeurbanne, France
- Institut Universitaire de France (IUF), 1 rue Descartes, 75231 Paris, France
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40
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Chen H, Yue H, Zhu C, Rueping M. Reactivity in Nickel‐Catalyzed Multi‐component Sequential Reductive Cross‐Coupling Reactions. Angew Chem Int Ed Engl 2022; 61:e202204144. [DOI: 10.1002/anie.202204144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Haifeng Chen
- KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Huifeng Yue
- KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Chen Zhu
- KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Magnus Rueping
- KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
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41
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Wu X, Li J, Xia S, Zhu C, Xie J. Nickel-catalyzed Thioester Transfer Reaction with sp 2-Hybridized Electrophiles. J Org Chem 2022; 87:10003-10017. [PMID: 35815594 DOI: 10.1021/acs.joc.2c00979] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We report a thioacylation transfer reaction based on nickel-catalyzed C-C bond cleavage of thioesters with sp2-hybridized electrophiles. Aryl bromides, iodides, and alkenyl triflates can participate in thioester transfer reaction of aryl thioesters, affording a wide range of structurally diverse new thioesters in yields of up to 98% under mild reaction conditions. With this protocol, it is possible to construct alkenyl thioesters from the corresponding ketones through the generation of alkenyl triflates.
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Affiliation(s)
- Xiaopeng Wu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jinhang Li
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Siyu Xia
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Chengjian Zhu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, China.,College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Jin Xie
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.,State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, China
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42
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Chen H, Yue H, Zhu C, Rueping M. Reactivity in Nickel Catalyzed Multicomponent Sequential Reductive Cross‐Coupling Reactions. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Haifeng Chen
- King Abdullah University of Science and Technology KAUST Catalysis Center Chemical Science Program SAUDI ARABIA
| | - Huifeng Yue
- King Abdullah University of Science and Technology KAUST Catalysis Center Chemical Science Program SAUDI ARABIA
| | - Chen Zhu
- King Abdullah University of Science and Technology KAUST Catalysis Center Chemical Science Program SAUDI ARABIA
| | - Magnus Rueping
- King Abdullah University of Science and Technology KAUST Catalysis Center Landoltweg 1 23955 Thuwal SAUDI ARABIA
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43
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Cui N, Lin T, Wang YE, Wu J, Han Y, Xu X, Xue F, Xiong D, Walsh PJ, Mao J. Nickel-Catalyzed Reductive Coupling of γ-Metalated Ketones with Unactivated Alkyl Bromides. Org Lett 2022; 24:3987-3992. [PMID: 35639094 DOI: 10.1021/acs.orglett.2c01390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A nickel-catalyzed reductive cross-coupling reaction of aryl cyclopropyl ketones with easily accessible unactivated alkyl bromides to access aryl alkyl ketones has been developed. This strategy facilitates access to various of γ-alkyl-substituted ketones via ring opening of cyclopropyl ketones (26 examples, 50-90% yield). Initial mechanistic studies revealed that the reaction proceeds via radical cleavage of the alkyl bromide.
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Affiliation(s)
- Ning Cui
- Technical Institute of Fluorochemistry, Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Tingzhi Lin
- Technical Institute of Fluorochemistry, Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China.,Institute of Material Physics & Chemistry, College of Science, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Yan-En Wang
- College of Science, Hebei Agricultural University, Baoding 071000, P. R. China
| | - Jian Wu
- Technical Institute of Fluorochemistry, Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Yuheng Han
- Technical Institute of Fluorochemistry, Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Xinyang Xu
- Technical Institute of Fluorochemistry, Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Fei Xue
- Institute of Material Physics & Chemistry, College of Science, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Dan Xiong
- Technical Institute of Fluorochemistry, Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Patrick J Walsh
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Jianyou Mao
- Technical Institute of Fluorochemistry, Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
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44
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Li Y, Li Y, Shi H, Wei H, Li H, Funes-Ardoiz I, Yin G. Modular access to substituted cyclohexanes with kinetic stereocontrol. Science 2022; 376:749-753. [PMID: 35549424 DOI: 10.1126/science.abn9124] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Substituted six-membered cyclic hydrocarbons are common constituents of biologically active compounds. Although methods for the synthesis of thermodynamically favored, disubstituted cyclohexanes are well established, a reliable and modular protocol for the synthesis of their stereoisomers is still elusive. Herein, we report a general strategy for the modular synthesis of disubstituted cyclohexanes with excellent kinetic stereocontrol from readily accessible substituted methylenecyclohexanes by the implementation of chain-walking catalysis. Mechanistically, the initial introduction of a sterically demanding boron ester group adjacent to the cyclohexane is key to guiding the stereochemical outcome. The synthetic potential of this methodology has been highlighted in late-stage modification of complex bioactive molecules and in comparison with current cross-coupling techniques.
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Affiliation(s)
- Yangyang Li
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Yuqiang Li
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Hongjin Shi
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Hong Wei
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Haoyang Li
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Ignacio Funes-Ardoiz
- Department of Chemistry, Centro de Investigación en Síntesis Química, Universidad de La Rioja, 26006 Logroño, Spain
| | - Guoyin Yin
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
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45
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Efficient preparation of unsymmetrical disulfides by nickel-catalyzed reductive coupling strategy. Nat Commun 2022; 13:2588. [PMID: 35546155 PMCID: PMC9095708 DOI: 10.1038/s41467-022-30256-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 04/19/2022] [Indexed: 12/01/2022] Open
Abstract
Disulfides are widely found in natural products and find a wide range of applications in life sciences, materials chemistry and other fields. The preparation of disulfides mainly rely on oxidative couplings of two sulfur containing compounds. This strategy has many side reactions and other shortcomings. Herein, we describe the reductive nickel-catalyzed cross-electrophile coupling of unactivated alkyl bromides with symmetrical alkyl- and aryltetrasulfides to form alkyl-alkyl and aryl-alkyl unsymmetrical disulfides. This approach for disulfide synthesis is practical, relies on easily available, unfunctionalized substrates, and is scalable. We investigated the mechanism of this transformation and found that the tetrasulfide compound does not selectively break the central S–S bond, but regio-selectively generates trisulfide intermediates. The preparation of disulfides mainly relies on oxidative couplings of two sulfur-containing compounds, a strategy which has side reactions and other shortcomings. In this work, the authors present a reductive nickel-catalyzed cross-electrophile coupling of unactivated alkyl bromides with symmetrical tetrasulfides to form unsymmetrical disulfides, proceeding via trisulfide intermediates.
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46
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Zhan YZ, Meng H, Shu W. Rapid access to t-butylalkylated olefins enabled by Ni-catalyzed intermolecular regio- and trans-selective cross-electrophile t-butylalkylation of alkynes. Chem Sci 2022; 13:4930-4935. [PMID: 35655892 PMCID: PMC9068203 DOI: 10.1039/d2sc00487a] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/28/2022] [Indexed: 12/14/2022] Open
Abstract
Among the carbo-difunctionalization of alkynes, the stereoselective dialkylation of alkynes is the most challenging transformation due to associated competitive side reactions and thus remains underdeveloped. Herein, we report the first Ni-catalyzed regio- and trans-selective cross-dialkylation of alkynes with two distinct alkyl bromides to afford olefins with two aliphatic substituents. The reductive conditions circumvent the use of organometallic reagents, enabling the cross-dialkylation process to occur at room temperature from two different alkyl bromides. This operationally simple protocol provides a straightforward and practical access to a wide range of stereodefined dialkylated olefins with broad functional group tolerance from easily available starting materials. A direct reductive cross-dialkylation of alkynes is achieved to afford trans-dialkylated olefins using two distinct alkyl bromides. The reaction undergoes with exclusive chemo-, regio- and stereoselectivity without the use of organometallic reagents.![]()
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Affiliation(s)
- Yi-Zhou Zhan
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology Shenzhen 518055 Guangdong P. R. China
| | - Huan Meng
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology Shenzhen 518055 Guangdong P. R. China
| | - Wei Shu
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology Shenzhen 518055 Guangdong P. R. China
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47
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Hamby TB, LaLama MJ, Sevov CS. Controlling Ni redox states by dynamic ligand exchange for electroreductive Csp3-Csp2 coupling. Science 2022; 376:410-416. [PMID: 35446658 PMCID: PMC9260526 DOI: 10.1126/science.abo0039] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Cross-electrophile coupling (XEC) reactions of aryl and alkyl electrophiles are appealing but limited to specific substrate classes. Here, we report electroreductive XEC of previously incompatible electrophiles including tertiary alkyl bromides, aryl chlorides, and aryl/vinyl triflates. Reactions rely on the merger of an electrochemically active complex that selectively reacts with alkyl bromides through 1e- processes and an electrochemically inactive Ni0(phosphine) complex that selectively reacts with aryl electrophiles through 2e- processes. Accessing Ni0(phosphine) intermediates is critical to the strategy but is often challenging. We uncover a previously unknown pathway for electrochemically generating these key complexes at mild potentials through a choreographed series of ligand-exchange reactions. The mild methodology is applied to the alkylation of a range of substrates including natural products and pharmaceuticals.
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Affiliation(s)
- Taylor B. Hamby
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA
| | - Matthew J. LaLama
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA
| | - Christo S. Sevov
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA
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48
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Ni-electrocatalytic Csp 3-Csp 3 doubly decarboxylative coupling. Nature 2022; 606:313-318. [PMID: 35381598 DOI: 10.1038/s41586-022-04691-4] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 03/25/2022] [Indexed: 12/26/2022]
Abstract
Cross-coupling between two similar or identical functional groups to form a new C-C bond is a powerful tool to rapidly assemble complex molecules from readily available building units, as seen with olefin cross-metathesis or various types of cross-electrophile coupling1,2. The Kolbe electrolysis involves the oxidative electrochemical decarboxylation of alkyl carboxylic acids to their corresponding radical species followed by recombination to generate a new C-C bond3-12. As one of the oldest known Csp3-Csp3 bond-forming reactions, it holds incredible promise for organic synthesis, yet its use has been almost non-existent. From the perspective of synthesis design, this transformation could allow one to agnostically execute syntheses without regard to polarity or neighbouring functionality just by coupling ubiquitous carboxylates13. In practice, this promise is undermined by the strongly oxidative electrolytic protocol used traditionally since the nineteenth century5, thereby severely limiting its scope. Here, we show how a mildly reductive Ni-electrocatalytic system can couple two different carboxylates by means of in situ generated redox-active esters, termed doubly decarboxylative cross-coupling. This operationally simple method can be used to heterocouple primary, secondary and even certain tertiary redox-active esters, thereby opening up a powerful new approach for synthesis. The reaction, which cannot be mimicked using stoichiometric metal reductants or photochemical conditions, tolerates a range of functional groups, is scalable and is used for the synthesis of 32 known compounds, reducing overall step counts by 73%.
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49
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Escolano M, Cabrera-Afonso MJ, Ribagorda M, Badir SO, Molander GA. Nickel-Mediated Synthesis of Non-Anomeric C-Acyl Glycosides through Electron Donor-Acceptor Complex Photoactivation. J Org Chem 2022; 87:4981-4990. [PMID: 35289617 PMCID: PMC10412007 DOI: 10.1021/acs.joc.1c03041] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The preparation of nonanomeric C-acyl-saccharides has been developed from two different carboxylic acid feedstocks. This transformation is driven by the synergistic interaction of an electron donor-acceptor complex and Ni catalysis. Primary-, secondary-, and tertiary redox-active esters are incorporated as coupling partners onto preactivated pyranosyl- and furanosyl acids, preserving their stereochemical integrity. The reaction occurs under mild conditions, without stoichiometric metal reductants or exogenous catalysts, using commercially available Hantzsch ester as the organic photoreductant.
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Affiliation(s)
- Marcos Escolano
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Pennsylvania 19104-6323, United States
| | - María Jesús Cabrera-Afonso
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Pennsylvania 19104-6323, United States
| | - Maria Ribagorda
- Facultad de Ciencias, Departamento de Química, Universidad Autónoma de Madrid, Madrid 28049, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Madrid 28049, Spain
| | - Shorouk O. Badir
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Pennsylvania 19104-6323, United States
| | - Gary A. Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Pennsylvania 19104-6323, United States
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50
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Zhou X, Guo L, Zhang H, Xia RY, Yang C, Xia W. Nickel‐Catalyzed Reductive Acylation of Carboxylic Acids with Alkyl Halides and
N
‐Hydroxyphthalimide Esters Enabled by Electrochemical Process. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xiao Zhou
- State Key Lab of Urban Water Resource and Environment School of Science Harbin Institute of Technology (Shenzhen) Shenzhen 518055 People's Republic of China
| | - Lin Guo
- State Key Lab of Urban Water Resource and Environment School of Science Harbin Institute of Technology (Shenzhen) Shenzhen 518055 People's Republic of China
| | - Haoxiang Zhang
- State Key Lab of Urban Water Resource and Environment School of Science Harbin Institute of Technology (Shenzhen) Shenzhen 518055 People's Republic of China
| | - Raymond Yang Xia
- The Affiliated International School of Shenzhen University Shenzhen 518054 People's Republic of China
| | - Chao Yang
- State Key Lab of Urban Water Resource and Environment School of Science Harbin Institute of Technology (Shenzhen) Shenzhen 518055 People's Republic of China
| | - Wujiong Xia
- State Key Lab of Urban Water Resource and Environment School of Science Harbin Institute of Technology (Shenzhen) Shenzhen 518055 People's Republic of China
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 People's Republic of China
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