1
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Zhang W, Tian Y, Liu XD, Luan C, Liu JR, Gu QS, Li ZL, Liu XY. Copper-Catalyzed Enantioselective C(sp 3 )-SCF 3 Coupling of Carbon-Centered Benzyl Radicals with (Me 4 N)SCF 3. Angew Chem Int Ed Engl 2024; 63:e202319850. [PMID: 38273811 DOI: 10.1002/anie.202319850] [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: 12/21/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 01/27/2024]
Abstract
In contrast with the well-established C(sp2 )-SCF3 cross-coupling to forge the Ar-SCF3 bond, the corresponding enantioselective coupling of readily available alkyl electrophiles to forge chiral C(sp3 )-SCF3 bond has remained largely unexplored. We herein disclose a copper-catalyzed enantioselective radical C(sp3 )-SCF3 coupling of a range of secondary/tertiary benzyl radicals with the easily available (Me4 N)SCF3 reagent. The key to the success lies in the utilization of chiral phosphino-oxazoline-derived anionic N,N,P-ligands through tuning electronic and steric effects for the simultaneous control of the reaction initiation and enantioselectivity. This strategy can successfully realize two types of asymmetric radical reactions, including enantioconvergent C(sp3 )-SCF3 cross-coupling of racemic benzyl halides and three-component 1,2-carbotrifluoromethylthiolation of arylated alkenes under mild reaction conditions. It therefore provides a highly flexible platform for the rapid assembly of an array of enantioenriched SCF3 -containing molecules of interest in organic synthesis and medicinal chemistry.
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Affiliation(s)
- Wei Zhang
- Shenzhen Key Laboratory of Cross-Coupling Reactions, Southern University of Science and Technology, Shenzhen, 518055, China
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yu Tian
- Shenzhen Key Laboratory of Cross-Coupling Reactions, Southern University of Science and Technology, Shenzhen, 518055, China
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xiao-Dong Liu
- Shenzhen Key Laboratory of Cross-Coupling Reactions, Southern University of Science and Technology, Shenzhen, 518055, China
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Cheng Luan
- Shenzhen Key Laboratory of Cross-Coupling Reactions, Southern University of Science and Technology, Shenzhen, 518055, China
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Ji-Ren Liu
- Shenzhen Key Laboratory of Cross-Coupling Reactions, Southern University of Science and Technology, Shenzhen, 518055, China
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Zhong-Liang Li
- School of Physical Sciences, Great Bay University, Dongguan, 523000, China
| | - Xin-Yuan Liu
- Shenzhen Key Laboratory of Cross-Coupling Reactions, Southern University of Science and Technology, Shenzhen, 518055, China
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen, 518055, China
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2
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Yus M, Nájera C, Foubelo F, Sansano JM. Metal-Catalyzed Enantioconvergent Transformations. Chem Rev 2023; 123:11817-11893. [PMID: 37793021 PMCID: PMC10603790 DOI: 10.1021/acs.chemrev.3c00059] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Indexed: 10/06/2023]
Abstract
Enantioconvergent catalysis has expanded asymmetric synthesis to new methodologies able to convert racemic compounds into a single enantiomer. This review covers recent advances in transition-metal-catalyzed transformations, such as radical-based cross-coupling of racemic alkyl electrophiles with nucleophiles or racemic alkylmetals with electrophiles and reductive cross-coupling of two electrophiles mainly under Ni/bis(oxazoline) catalysis. C-H functionalization of racemic electrophiles or nucleophiles can be performed in an enantioconvergent manner. Hydroalkylation of alkenes, allenes, and acetylenes is an alternative to cross-coupling reactions. Hydrogen autotransfer has been applied to amination of racemic alcohols and C-C bond forming reactions (Guerbet reaction). Other metal-catalyzed reactions involve addition of racemic allylic systems to carbonyl compounds, propargylation of alcohols and phenols, amination of racemic 3-bromooxindoles, allenylation of carbonyl compounds with racemic allenolates or propargyl bromides, and hydroxylation of racemic 1,3-dicarbonyl compounds.
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Affiliation(s)
- Miguel Yus
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain
| | - Carmen Nájera
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain
| | - Francisco Foubelo
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain
- Departamento
de Química Orgánica and Instituto de Síntesis
Orgánica (ISO), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain
| | - José M. Sansano
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain
- Departamento
de Química Orgánica and Instituto de Síntesis
Orgánica (ISO), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain
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3
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Zhang S, Zhao L. Anaerobic photoinduced Cu(0/I)-mediated Glaser coupling in a radical pathway. Nat Commun 2023; 14:6741. [PMID: 37875487 PMCID: PMC10598264 DOI: 10.1038/s41467-023-42602-x] [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: 05/14/2023] [Accepted: 10/16/2023] [Indexed: 10/26/2023] Open
Abstract
The reaction mechanism of the historic copper-catalyzed Glaser coupling has been debated to be based on redox cycles of Cu ions in specific oxidation states or on a radical mechanism based on Cu(0)/Cu(I). Here, the authors demonstrate two coexisting Glaser coupling pathways which can be differentiated by anaerobic/irradiation or aerobic reaction conditions. Without O2, copper(I) acetylides undergo a photo-excited pathway to generate highly reactive alkynyl radicals, which combine together to form a homo-coupling product or individually react with diverse X-H (X = C, N, O, S and P) substrates via hydrogen atom transfer. With O2, copper(I) acetylides are oxidized to become a Cu-acetylide/Cu-O merged Cu(I/II) intermediate for further oxidative coupling. This work not only complements the radical mechanism for Glaser coupling, but also provides a mild way to access highly energetic alkynyl radicals for efficient organic transformations.
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Affiliation(s)
- Siqi Zhang
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
| | - Liang Zhao
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China.
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4
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Luo Y, Li Y, Wu J, Xue XS, Hartwig JF, Shen Q. Oxidative addition of an alkyl halide to form a stable Cu(III) product. Science 2023; 381:1072-1079. [PMID: 37676952 PMCID: PMC10658983 DOI: 10.1126/science.adg9232] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 08/10/2023] [Indexed: 09/09/2023]
Abstract
The step that cleaves the carbon-halogen bond in copper-catalyzed cross-coupling reactions remains ill defined because of the multiple redox manifolds available to copper and the instability of the high-valent copper product formed. We report the oxidative addition of α-haloacetonitrile to ionic and neutral copper(I) complexes to form previously elusive but here fully characterized copper(III) complexes. The stability of these complexes stems from the strong Cu-CF3 bond and the high barrier for C(CF3)-C(CH2CN) bond-forming reductive elimination. The mechanistic studies we performed suggest that oxidative addition to ionic and neutral copper(I) complexes proceeds by means of two different pathways: an SN2-type substitution to the ionic complex and a halogen-atom transfer to the neutral complex. We observed a pronounced ligand acceleration of the oxidative addition, which correlates with that observed in the copper-catalyzed couplings of azoles, amines, or alkynes with alkyl electrophiles.
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Affiliation(s)
- Yongrui Luo
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, PR China
| | - Yuli Li
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, PR China
| | - Jian Wu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, PR China
| | - Xiao-Song Xue
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, PR China
| | - John F. Hartwig
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Qilong Shen
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, PR China
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5
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Chen JJ, Zhang JY, Fang JH, Du XY, Xia HD, Cheng B, Li N, Yu ZL, Bian JQ, Wang FL, Zheng JJ, Liu WL, Gu QS, Li ZL, Liu XY. Copper-Catalyzed Enantioconvergent Radical C(sp 3)-N Cross-Coupling of Activated Racemic Alkyl Halides with (Hetero)aromatic Amines under Ambient Conditions. J Am Chem Soc 2023. [PMID: 37392183 DOI: 10.1021/jacs.3c02387] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/03/2023]
Abstract
The enantioconvergent C(sp3)-N cross-coupling of racemic alkyl halides with (hetero)aromatic amines represents an ideal means to afford enantioenriched N-alkyl (hetero)aromatic amines yet has remained unexplored due to the catalyst poisoning specifically for strong-coordinating heteroaromatic amines. Here, we demonstrate a copper-catalyzed enantioconvergent radical C(sp3)-N cross-coupling of activated racemic alkyl halides with (hetero)aromatic amines under ambient conditions. The key to success is the judicious selection of appropriate multidentate anionic ligands through readily fine-tuning both electronic and steric properties for the formation of a stable and rigid chelating Cu complex. Thus, this kind of ligand could not only enhance the reducing capability of a copper catalyst to provide an enantioconvergent radical pathway but also avoid the coordination with other coordinating heteroatoms, thereby overcoming catalyst poisoning and/or chiral ligand displacement. This protocol covers a wide range of coupling partners (89 examples for activated racemic secondary/tertiary alkyl bromides/chlorides and (hetero)aromatic amines) with high functional group compatibility. When allied with follow-up transformations, it provides a highly flexible platform to access synthetically useful enantioenriched amine building blocks.
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Affiliation(s)
- Ji-Jun Chen
- Shenzhen Key Laboratory of Cross-Coupling Reactions, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jia-Yong Zhang
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- Institute of Marine Biomedicine/Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Jia-Heng Fang
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xuan-Yi Du
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hai-Dong Xia
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bin Cheng
- Institute of Marine Biomedicine/Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Nan Li
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhang-Long Yu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jun-Qian Bian
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Fu-Li Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jing-Jing Zheng
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Wei-Long Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhong-Liang Li
- Shenzhen Key Laboratory of Cross-Coupling Reactions, Southern University of Science and Technology, Shenzhen 518055, China
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xin-Yuan Liu
- Shenzhen Key Laboratory of Cross-Coupling Reactions, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
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6
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Qi R, Chen Q, Liu L, Ma Z, Pan D, Wang H, Li Z, Wang C, Xu Z. Copper-catalyzed asymmetric C(sp 3)-H cyanoalkylation of glycine derivatives and peptides. Nat Commun 2023; 14:3295. [PMID: 37280209 DOI: 10.1038/s41467-023-38871-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 05/16/2023] [Indexed: 06/08/2023] Open
Abstract
Alkylnitriles play important roles in many fields because of their unique electronic properties and structural characteristics. Incorporating cyanoalkyl with characteristic spectroscopy and reactivity properties into amino acids and peptides is of special interest for potential imaging and therapeutic purposes. Here, we report a copper-catalyzed asymmetric cyanoalkylation of C(sp3)-H. In the reactions, glycine derivatives can effectively couple with various cycloalkanone oxime esters with high enantioselectivities, and the reaction can be applied to the late-stage modification of peptides with good yields and excellent stereoselectivities, which is useful for modern peptide synthesis and drug discovery. The mechanistic studies show that the in situ formed copper complex by the coordination of glycine derivatives and chiral phosphine Cu catalyst can not only mediate the single electronic reduction of cycloalkanone oxime ester but also control the stereoselectivity of the cyanoalkylation reaction.
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Affiliation(s)
- Rupeng Qi
- School of Pharmacy, Lanzhou University, 730000, Lanzhou, China
- Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, 730000, Lanzhou, China
| | - Qiao Chen
- School of Pharmacy, Lanzhou University, 730000, Lanzhou, China
| | - Liangyu Liu
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, 730000, Lanzhou, China
| | - Zijian Ma
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, 730000, Lanzhou, China
| | - Da Pan
- School of Pharmacy, Lanzhou University, 730000, Lanzhou, China
| | - Hongying Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, 730000, Lanzhou, China
| | - Zhixuan Li
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, 730000, Lanzhou, China
| | - Chao Wang
- Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, 730000, Lanzhou, China.
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, 730000, Lanzhou, China.
| | - Zhaoqing Xu
- Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, 730000, Lanzhou, China.
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, 730000, Lanzhou, China.
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7
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Li R, Ouyang F, Bai Y, Tang R, Yu G, Wei B. Modular and Selective Access to Functionalized Alkynes and Allenes via the Intermediacy of Propargylic Acetates. Org Lett 2023; 25:2543-2547. [PMID: 37018539 DOI: 10.1021/acs.orglett.3c00750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
We report an efficient one-pot, two-step procedure for the modular synthesis of α-difunctionalized alkynes and trisubstituted allenes by sequential cross-coupling of benzal gem-diacetates with organozinc or -copper reagents in the absence of external transition metals. The intermediacy of propargylic acetates enables the divergent and selective synthesis of these valuable products. This method features its readily accessible substrates, relatively mild conditions, wide scope, and scalability in practical synthesis.
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Affiliation(s)
- Rundong Li
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Feng Ouyang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Yike Bai
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Ruiren Tang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Guipeng Yu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Baosheng Wei
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
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8
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Yu ZL, Cheng YF, Liu JR, Yang W, Xu DT, Tian Y, Bian JQ, Li ZL, Fan LW, Luan C, Gao A, Gu QS, Liu XY. Cu(I)-Catalyzed Chemo- and Enantioselective Desymmetrizing C-O Bond Coupling of Acyl Radicals. J Am Chem Soc 2023; 145:6535-6545. [PMID: 36912664 DOI: 10.1021/jacs.3c00671] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
Transition-metal-catalyzed enantioselective functionalization of acyl radicals has so far not been realized, probably due to their relatively high reactivity, which renders the chemo- and stereocontrol challenging. Herein, we describe Cu(I)-catalyzed enantioselective desymmetrizing C-O bond coupling of acyl radicals. This reaction is compatible with (hetero)aryl and alkyl aldehydes and, more importantly, displays a very broad scope of challenging alcohol substrates, such as 2,2-disubstituted 1,3-diols, 2-substituted-2-chloro-1,3-diols, 2-substituted 1,2,3-triols, 2-substituted serinols, and meso primary 1,4-diols, providing enantioenriched esters characterized by challenging acyclic tetrasubstituted carbon stereocenters. Partnered by one- or two-step follow-up transformations, this reaction provides a convenient and practical strategy for the rapid preparation of chiral C3 building blocks from readily available alcohols, particularly the industrially relevant glycerol. Mechanistic studies supported the proposed C-O bond coupling of acyl radicals.
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Affiliation(s)
- Zhang-Long Yu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yong-Feng Cheng
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ji-Ren Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Wu Yang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Dan-Tong Xu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yu Tian
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jun-Qian Bian
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhong-Liang Li
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Li-Wen Fan
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Cheng Luan
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ang Gao
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xin-Yuan Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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9
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Ghosh S, Changotra A, Petrone DA, Isomura M, Carreira EM, Sunoj RB. Role of Noncovalent Interactions in Inducing High Enantioselectivity in an Alcohol Reductive Deoxygenation Reaction Involving a Planar Carbocationic Intermediate. J Am Chem Soc 2023; 145:2884-2900. [PMID: 36695526 DOI: 10.1021/jacs.2c10975] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The involvement of planar carbocation intermediates is generally considered undesirable in asymmetric catalysis due to the difficulty in gaining facial control and their intrinsic stability issues. Recently, suitably designed chiral catalyst(s) have enabled a guided approach of nucleophiles to one of the prochiral faces of carbocations affording high enantiocontrol. Herein, we present the vital mechanistic insights from our comprehensive density functional theory (B3LYP-D3) study on a chiral Ir-phosphoramidite-catalyzed asymmetric reductive deoxygenation of racemic tertiary α-substituted allenylic alcohols. The catalytic transformation relies on the synergistic action of a phosphoramidite-modified Ir catalyst and Bi(OTf)3, first leading to the formation of an Ir-π-allenyl carbocation intermediate through a turn-over-determining SN1 ionization, followed by a face-selective hydride transfer from a Hantzsch ester analogue to yield an enantioenriched product. Bi(OTf)3 was found to promote a significant number of ionic interactions as well as noncovalent interactions (NCIs) with the catalyst and the substrates (allenylic alcohol and Hantzsch ester), thus providing access to a lower energy route as compared to the pathways devoid of Bi(OTf)3. In the nucleophilic addition, the chiral induction was found to depend on the number and efficacy of such key NCIs. The curious case of reversal of enantioselectivity, when the α-substituent of the allenyl alcohol is changed from methyl to cyclopropyl, was identified to originate from a change in mechanism from an enantioconvergent pathway (α-methyl) to a dynamic kinetic asymmetric transformation (α-cyclopropyl). These molecular insights could lead to newer strategies to tame tertiary carbocations in enantioselective reactions using suitable combinations of catalysts and additives.
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Affiliation(s)
- Supratim Ghosh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Avtar Changotra
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - David A Petrone
- Department of Chemistry and Applied Biosciences, Laboratory of Organic Chemistry, ETH Zürich, 8093 Zürich, Switzerland.,Department of Process Research & Development, Merck & Co., Inc., MRL, Rahway, New Jersey 07065, United States
| | - Mayuko Isomura
- Department of Chemistry and Applied Biosciences, Laboratory of Organic Chemistry, ETH Zürich, 8093 Zürich, Switzerland
| | - Erick M Carreira
- Department of Chemistry and Applied Biosciences, Laboratory of Organic Chemistry, ETH Zürich, 8093 Zürich, Switzerland
| | - Raghavan B Sunoj
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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10
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Zhang B, Zhou WQ, Liu XT, Sun Y, Zhang QW. A Ni-catalyzed asymmetric C(sp)-P cross-coupling reaction for the synthesis of P-stereogenic alkynylphosphines. Chem Sci 2023; 14:1286-1290. [PMID: 36756330 PMCID: PMC9891383 DOI: 10.1039/d2sc05841c] [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: 10/21/2022] [Accepted: 01/06/2023] [Indexed: 01/09/2023] Open
Abstract
Due to the high reactivity of the triple bond, P-stereogenic alkynylphosphines could be easily derivatized, serving as universal building blocks for structurally diverse phosphine compounds. However, the synthesis of alkynylphosphines via direct P-C bond formation was unprecedented. Here, we report an efficient method for the synthesis of P-stereogenic alkynylphosphines with high enantioselectivity via a Ni-catalyzed asymmetric cross-coupling reaction. The reaction could tolerate a variety of functional groups, affording products that can be converted into useful phosphine derivatives.
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Affiliation(s)
- Bin Zhang
- Department of Chemistry, University of Science and Technology of China Hefei 230026 China
| | - Wen-Qing Zhou
- Department of Chemistry, University of Science and Technology of China Hefei 230026 China
| | - Xu-Teng Liu
- Department of Chemistry, University of Science and Technology of China Hefei 230026 China
| | - Yingying Sun
- Department of Chemistry, University of Science and Technology of China Hefei 230026 China
| | - Qing-Wei Zhang
- Department of Chemistry, University of Science and Technology of China Hefei 230026 China
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11
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Zhang Y, Cai Z, Warratz S, Ma C, Ackermann L. Recent advances in electrooxidative radical transformations of alkynes. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1438-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
AbstractDuring the past few years, electrochemical oxidative reactions through radical intermediates have emerged as an environmentally-benign, powerful platform for the facile formation of C–E (E = C, N, S, Se, O and Hal) bonds through single-electron-transfer (SET) processes at the electrodes. Functionalized unsaturated molecules and unusual structural motifs can, for instance, be directly constructed under exceedingly mild reaction conditions through initial radical attack onto alkynes. This minireview highlights the recent advances in electrooxidation in radical reactions until June 2022, with a particular focus on radical additions onto alkynes.
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12
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Cheng XY, Zhang YF, Wang JH, Gu QS, Li ZL, Liu XY. A Counterion/Ligand-Tuned Chemo- and Enantioselective Copper-Catalyzed Intermolecular Radical 1,2-Carboamination of Alkenes. J Am Chem Soc 2022; 144:18081-18089. [PMID: 36153984 DOI: 10.1021/jacs.2c08035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The copper-catalyzed enantioselective intermolecular radical 1,2-carboamination of alkenes with readily accessible alkyl halides is an appealing strategy for producing chiral amine scaffolds. The challenge arises from the easily occurring atom transfer radical addition between alkyl halides and alkenes and the issue of enantiocontrol. We herein describe a radical alkene 1,2-carboamination with sulfoximines in a highly chemo- and enantioselective manner. The key to the success of this process is the conceptual design of a counterion/highly sterically demanded ligand coeffect to promote the ligand exchange of copper(I) with sulfoximines and forge chiral C-N bonds between alkyl radicals and the chiral copper(II) complex. The reaction covers alkenes bearing distinct electronic properties, such as aryl-, heteroaryl-, carbonyl-, and aminocarbonyl-substituted ones, and various radical precursors, including alkyl chlorides, bromides, iodides, and the CF3 source. Facile transformations deliver many chiral amine building blocks of interest in organic synthesis and related areas.
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Affiliation(s)
- Xian-Yan Cheng
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yu-Feng Zhang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jia-Huan Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhong-Liang Li
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xin-Yuan Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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13
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Guo R, Xiao H, Li S, Luo Y, Bai J, Zhang M, Guo Y, Qi X, Zhang G. Photoinduced Copper‐Catalyzed Asymmetric C(sp
3
)−H Alkynylation of Cyclic Amines by Intramolecular 1,5‐Hydrogen Atom Transfer. Angew Chem Int Ed Engl 2022; 61:e202208232. [DOI: 10.1002/anie.202208232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Indexed: 01/22/2023]
Affiliation(s)
- Rui Guo
- CCNU-uOttawa Joint Research Centre Key Laboratory of Pesticides & Chemical Biology Ministry of Education International Joint Research Center for Intelligent Biosensing Technology and Health College of Chemistry Central China Normal University (CCNU) 152 Luoyu Road Wuhan Hubei 430079 P. R. China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Haijing Xiao
- CCNU-uOttawa Joint Research Centre Key Laboratory of Pesticides & Chemical Biology Ministry of Education International Joint Research Center for Intelligent Biosensing Technology and Health College of Chemistry Central China Normal University (CCNU) 152 Luoyu Road Wuhan Hubei 430079 P. R. China
| | - Sijia Li
- CCNU-uOttawa Joint Research Centre Key Laboratory of Pesticides & Chemical Biology Ministry of Education International Joint Research Center for Intelligent Biosensing Technology and Health College of Chemistry Central China Normal University (CCNU) 152 Luoyu Road Wuhan Hubei 430079 P. R. China
| | - Yixin Luo
- Engineering Research Center of Organosilicon Compounds & Materials Ministry of Education College of Chemistry and Molecular Sciences Wuhan University Wuhan Hubei 430072 P. R. China
| | - Jiahui Bai
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Mengzhen Zhang
- CCNU-uOttawa Joint Research Centre Key Laboratory of Pesticides & Chemical Biology Ministry of Education International Joint Research Center for Intelligent Biosensing Technology and Health College of Chemistry Central China Normal University (CCNU) 152 Luoyu Road Wuhan Hubei 430079 P. R. China
| | - Yinlong Guo
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Xiaotian Qi
- Engineering Research Center of Organosilicon Compounds & Materials Ministry of Education College of Chemistry and Molecular Sciences Wuhan University Wuhan Hubei 430072 P. R. China
| | - Guozhu Zhang
- CCNU-uOttawa Joint Research Centre Key Laboratory of Pesticides & Chemical Biology Ministry of Education International Joint Research Center for Intelligent Biosensing Technology and Health College of Chemistry Central China Normal University (CCNU) 152 Luoyu Road Wuhan Hubei 430079 P. R. China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
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14
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Yang W, Liu L, Guo J, Wang S, Zhang J, Fan L, Tian Y, Wang L, Luan C, Li Z, He C, Wang X, Gu Q, Liu X. Enantioselective Hydroxylation of Dihydrosilanes to Si‐Chiral Silanols Catalyzed by In Situ Generated Copper(II) Species. Angew Chem Int Ed Engl 2022; 61:e202205743. [DOI: 10.1002/anie.202205743] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Indexed: 12/14/2022]
Affiliation(s)
- Wu Yang
- Hoffmann Institute of Advanced Materials Postdoctoral Innovation Practice Base Shenzhen Polytechnic Nanshan District, Shenzhen 518055 P. R. China
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology Shenzhen 518055 P. R. China
- Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen 518055 P. R. China
| | - Lin Liu
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology Shenzhen 518055 P. R. China
- Great Bay University Dongguan 523000 P. R. China
| | - Jiandong Guo
- Hoffmann Institute of Advanced Materials Postdoctoral Innovation Practice Base Shenzhen Polytechnic Nanshan District, Shenzhen 518055 P. R. China
| | - Shou‐Guo Wang
- Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen 518055 P. R. China
| | - Jia‐Yong Zhang
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology Shenzhen 518055 P. R. China
| | - Li‐Wen Fan
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology Shenzhen 518055 P. R. China
| | - Yu Tian
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology Shenzhen 518055 P. R. China
| | - Li‐Lei Wang
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology Shenzhen 518055 P. R. China
| | - Cheng Luan
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 P. R. China
| | - Zhong‐Liang Li
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 P. R. China
| | - Chuan He
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology Shenzhen 518055 P. R. China
| | - Xiaotai Wang
- Department of Chemistry University of Colorado Denver Denver CO 80217-3364 USA
| | - Qiang‐Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 P. R. China
| | - Xin‐Yuan Liu
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology Shenzhen 518055 P. R. China
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15
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Wang Q, Wang M, Wu Q, Ma M, Zhao B. Synthesis of β-Polychlorinated Alkynes Enabled by Copper-Catalyzed Multicomponent Reaction. Org Lett 2022; 24:4772-4777. [PMID: 35766365 DOI: 10.1021/acs.orglett.2c01755] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Functional molecules bearing polychlorinated moieties usually play versatile roles in organic synthesis and biochemistry. A copper-catalyzed multicomponent polychloro-carboalkynylation of alkenes presents an efficient and operationally simple approach for the synthesis of β-polychlorinated alkynes. Mechanistic experiments were conducted demonstrating that an in situ generated copper acetylide complex was the real catalyst and reactive intermediate during the copper-catalytic cycle. And enantioselective exploration demonstrated potential application for the synthesis of chiral β-polychlorinated alkynes.
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Affiliation(s)
- Qiuzhu Wang
- Department of Chemistry and Materials Science, College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Mengning Wang
- Department of Chemistry and Materials Science, College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Qianhui Wu
- School of Environmental Science, Nanjing Xiaozhuang University, Nanjing 211171, China
| | - Mengtao Ma
- Department of Chemistry and Materials Science, College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Binlin Zhao
- Department of Chemistry and Materials Science, College of Science, Nanjing Forestry University, Nanjing 210037, China
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16
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Guo R, Xiao H, Li S, Luo Y, Bai J, Zhang M, Qi X, Guo Y, Zhang G. Photoinduced Copper‐Catalyzed Asymmetric C(sp3)‐H Alkynylation of Cyclic Amines by Intramolecular 1,5‐Hydrogen Atom Transfer. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208232] [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)
- Rui Guo
- Shanghai Institute of Organic Chemistry State Key Laborary of Organometallic Chemistry CHINA
| | - Haijing Xiao
- Central China Normal University Department of Chemistry CHINA
| | - Sijia Li
- Central China Normal University Department of Chemistry CHINA
| | - Yixin Luo
- Wuhan University Department of Chemistry CHINA
| | - Jiahui Bai
- Shanghai Institute of Organic Chemistry State Key Laborary of Organometallic Chemistry CHINA
| | - Mengzhen Zhang
- Central China Normal University Department of Chemistry CHINA
| | - Xiaotian Qi
- Wuhan University Department of Chemistry CHINA
| | - Yinlong Guo
- Shanghai Institute of Organic Chemistry State Key Laborary of Organometallic Chemistry CHINA
| | - Guozhu Zhang
- Shanghai Institute of Organic Chemistry Chemistry 345 Lingling Rd 200032 Shanghai CHINA
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17
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Pan P, Liu S, Lan Y, Zeng H, Li CJ. Visible-light-induced cross-coupling of aryl iodides with hydrazones via an EDA-complex. Chem Sci 2022; 13:7165-7171. [PMID: 35799801 PMCID: PMC9214885 DOI: 10.1039/d2sc01909d] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 05/23/2022] [Indexed: 11/21/2022] Open
Abstract
A visible-light-induced, transition-metal and photosensitizer-free cross-coupling of aryl iodides with hydrazones was developed. In this strategy, hydrazones were used as alternatives to organometallic reagents, in the absence of a transition metal or an external photosensitizer, making this cross-coupling mild and green. The protocol was compatible with a variety of functionalities, including methyl, methoxy, trifluoromethyl, halogen, and heteroaromatic rings. Mechanistic investigations showed that the association of the hydrazone anion with aryl halides formed an electron donor–acceptor complex, which when excited with visible light generated an aryl radical via single-electron transfer. Visible-light-induced catalyst-free cross-coupling of aryl iodides with hydrazones via single-electron-transfer was reported. The mechanistic investigations showed that the association of hydrazone anion with aryl iodides formed an EDA complex.![]()
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Affiliation(s)
- Pan Pan
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University 222 Tianshui Road Lanzhou 730000 P. R. China
| | - Shihan Liu
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University Chongqing 400030 China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University Chongqing 400030 China .,College of Chemistry, Institute of Green Catalysis, Zhengzhou University Zhengzhou 450001 P. R. China
| | - Huiying Zeng
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University 222 Tianshui Road Lanzhou 730000 P. R. China
| | - Chao-Jun Li
- Department of Chemistry, FQRNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
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18
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Bian KJ, Nemoto D, Kao SC, He Y, Li Y, Wang XS, West JG. Modular Difunctionalization of Unactivated Alkenes through Bio-Inspired Radical Ligand Transfer Catalysis. J Am Chem Soc 2022; 144:11810-11821. [PMID: 35729791 DOI: 10.1021/jacs.2c04188] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Development of visible light-mediated atom transfer radical addition of haloalkanes onto unsaturated hydrocarbons has seen rapid growth in recent years. However, due to its radical chain propagation mechanism, diverse functionality other than the pre-existing (pseudo-)halide on the alkyl halide source cannot be incorporated into target molecules in a one-step, economic fashion. Inspired by the prominent reactivities shown by cytochrome P450 hydroxylase and non-heme iron-dependent oxygenases, we herein report the first modular, dual catalytic difunctionalization of unactivated alkenes via manganese-catalyzed radical ligand transfer (RLT). This RLT elementary step involves a coordinated nucleophile rebounding to a carbon-centered radical to form a new C-X bond in analogy to the radical rebound step in metalloenzymes. The protocol leverages the synergetic cooperation of both a photocatalyst and earth-abundant manganese complex to deliver two radical species in succession to minimally functionalized alkenes, enabling modular diversification of the radical intermediate by a high-valent manganese species capable of delivering various external nucleophiles. A broad scope (97 examples, including drugs/natural product motifs), mild conditions, and excellent chemoselectivity were shown for a variety of substrates and fluoroalkyl fragments. Mechanistic and kinetics studies provide insights into the radical nature of the dual catalytic transformation and support radical ligand transfer (RLT) as a new strategy to deliver diverse functionality selectively to carbon-centered radicals.
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Affiliation(s)
- Kang-Jie Bian
- Department of Chemistry, Rice University, 6500 Main St, Houston, Texas 77030, United States
| | - David Nemoto
- Department of Chemistry, Rice University, 6500 Main St, Houston, Texas 77030, United States
| | - Shih-Chieh Kao
- Department of Chemistry, Rice University, 6500 Main St, Houston, Texas 77030, United States
| | - Yan He
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Yan Li
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Julian G West
- Department of Chemistry, Rice University, 6500 Main St, Houston, Texas 77030, United States
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19
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Yang W, Liu L, Guo J, Wang SG, Zhang JY, Fan LW, Tian Y, Wang LL, Luan C, Li ZL, He C, Wang X, Gu QS, Liu XY. Enantioselective Hydroxylation of Dihydrosilanes to Si‐Chiral Silanols Catalyzed by In Situ Generated Copper(II) Species. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wu Yang
- Shenzhen Polytechnic Hoffmann Institute of Advanced Materials CHINA
| | - Lin Liu
- Southern University of Science and Technology Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis CHINA
| | - Jiandong Guo
- Shenzhen Polytechnic Hoffmann Institute of Advanced Materials, Postdoctoral Innovation Practice Base CHINA
| | - Shou-Guo Wang
- SIAT: Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen Institutes of Advanced Technology CHINA
| | - Jia-Yong Zhang
- Southern University of Science and Technology Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis CHINA
| | - Li-Wen Fan
- Southern University of Science and Technology Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis CHINA
| | - Yu Tian
- Southern University of Science and Technology Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis CHINA
| | - Li-Lei Wang
- Southern University of Science and Technology Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis CHINA
| | - Cheng Luan
- Southern University of Science and Technology Academy for Advanced Interdisciplinary Studies and Department of Chemistry CHINA
| | - Zhong-Liang Li
- Southern University of Science and Technology Academy for Advanced Interdisciplinary Studies and Department of Chemistry CHINA
| | - Chuan He
- Southern University of Science and Technology Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis CHINA
| | - Xiaotai Wang
- University of Colorado Department of Chemistry UNITED STATES
| | - Qiang-Shuai Gu
- Southern University of Science and Technology Academy for Advanced Interdisciplinary Studies and Department of Chemistry CHINA
| | - Xin-Yuan Liu
- Southern University of Science and Technology Department of chemistry No. 1088, Xueyuan Blvd., Xili, Nanshan District 518055 Shenzhen CHINA
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20
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Zhang Y, Ma C, Cai Z, Struwe J, Chen S, Xu J, Li S, Zeng W, Ackermann L. Electrooxidative tricyclic 6-7-6 fused-system domino assembly to allocolchicines by a removable radical strategy. GREEN CHEMISTRY : AN INTERNATIONAL JOURNAL AND GREEN CHEMISTRY RESOURCE : GC 2022; 24:3697-3703. [PMID: 35694222 PMCID: PMC9086860 DOI: 10.1039/d2gc00684g] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 03/09/2022] [Indexed: 06/15/2023]
Abstract
Natural allocolchicine and analogues derived thereof a tricyclic 6-7-6-system have been found as key scaffold of various biologically relevant molecules. However, the direct preparation of the allocolchicine motif remains difficult to date. Herein, we report on an electrooxidative radical cyclization of biarylynones with various carbon- and heteroatom-centered radical precursors via a sequential radical addition/7-endo-trig/radical cyclization domino reaction. This approach provides a step-economical and strategically novel disconnection for the facile assembly of a wide range of carbocyclic 6-7-6 fused ring systems. Remarkably, the sulfonyl group on the products could be easily removed by photocatalysis at room temperature with high yields.
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Affiliation(s)
- Yan Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, and Drug discovery & innovation center, College of Chemistry and Life Sciences, Zhejiang Normal University China
| | - Chanchan Ma
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, and Drug discovery & innovation center, College of Chemistry and Life Sciences, Zhejiang Normal University China
| | - Zhenzhi Cai
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, and Drug discovery & innovation center, College of Chemistry and Life Sciences, Zhejiang Normal University China
| | - Julia Struwe
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Germany
| | - Shengjie Chen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, and Drug discovery & innovation center, College of Chemistry and Life Sciences, Zhejiang Normal University China
| | - Jinming Xu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, and Drug discovery & innovation center, College of Chemistry and Life Sciences, Zhejiang Normal University China
| | - Shiyin Li
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, and Drug discovery & innovation center, College of Chemistry and Life Sciences, Zhejiang Normal University China
| | - Wangyu Zeng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, and Drug discovery & innovation center, College of Chemistry and Life Sciences, Zhejiang Normal University China
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Germany
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21
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Wang PF, Yu J, Guo KX, Jiang SP, Chen JJ, Gu QS, Liu JR, Hong X, Li ZL, Liu XY. Design of Hemilabile N,N,N-Ligands in Copper-Catalyzed Enantioconvergent Radical Cross-Coupling of Benzyl/Propargyl Halides with Alkenylboronate Esters. J Am Chem Soc 2022; 144:6442-6452. [PMID: 35363483 DOI: 10.1021/jacs.2c00957] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The enantioconvergent radical C(sp3)-C(sp2) cross-coupling of alkyl halides with alkenylboronate esters is an appealing tool in the assembly of synthetically valuable enantioenriched alkenes owing to the ready availability, low toxicity, and air/moisture stability of alkenylboronate esters. Here, we report a copper/chiral N,N,N-ligand catalytic system for the enantioconvergent cross-coupling of benzyl/propargyl halides with alkenylboronate esters (>80 examples) with good functional group tolerance. The key to the success is the rational design of hemilabile N,N,N-ligands by mounting steric hindrance at the ortho position of one coordinating quinoline ring. Thus, the newly designed ligand could not only promote the radical cross-coupling process in the tridentate form but also deliver enantiocontrol over highly reactive alkyl radicals in the bidentate form. Facile follow-up transformations highlight its potential utility in the synthesis of various enantioenriched building blocks as well as in the late-stage functionalization for drug discovery.
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Affiliation(s)
- Peng-Fei Wang
- Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen 518055, China.,Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jiao Yu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Kai-Xin Guo
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.,Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Sheng-Peng Jiang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ji-Jun Chen
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qiang-Shuai Gu
- Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen 518055, China.,Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ji-Ren Liu
- Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Xin Hong
- Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Zhong-Liang Li
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xin-Yuan Liu
- Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen 518055, China.,Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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22
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Shee M, Singh NDP. Chemical versatility of azide radical: journey from a transient species to synthetic accessibility in organic transformations. Chem Soc Rev 2022; 51:2255-2312. [PMID: 35229836 DOI: 10.1039/d1cs00494h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The generation of azide radical (N3˙) occurs from its precursors primarily via a single electron transfer (SET) process or homolytic cleavage by chemical methods or advanced photoredox/electrochemical methods. This in situ generated transient open-shell species has unique characteristic features that set its reactivity. In the past, the azide radical was widely used for various studies in radiation chemistry as a 1e- oxidant of biologically important molecules, but now it is being exploited for synthetic applications based on its addition and intermolecular hydrogen atom transfer (HAT) abilities. Due to the significant role of nitrogen-containing molecules in synthesis, drug discovery, biological, and material sciences, the direct addition onto unsaturated bonds for the simultaneous construction of C-N bond with other (C-X) bonds are indeed worth highlighting. Moreover, the ability to generate O- or C-centered radicals by N3˙ via electron transfer (ET) and intermolecular HAT processes is also well documented. The purpose of controlling the reactivity of this short-lived intermediate in organic transformations drives us to survey: (i) the history of azide radical and its structural properties (thermodynamic, spectroscopic, etc.), (ii) chemical reactivities and kinetics, (iii) methods to produce N3˙ from various precursors, (iv) several significant azide radical-mediated transformations in the field of functionalization with unsaturated bonds, C-H functionalization via HAT, tandem, and multicomponent reaction with a critical analysis of underlying mechanistic approaches and outcomes, (v) concept of taming the reactivity of azide radicals for potential opportunities, in this review.
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Affiliation(s)
- Maniklal Shee
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India.
| | - N D Pradeep Singh
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India.
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23
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Guo R, Sang J, Xiao H, Li J, Zhang G. Development of Novel
Phosphino‐Oxazoline
Ligands and Their Application in Asymmetric Alkynlylation of Benzylic Halides. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Rui Guo
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, , Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road Shanghai 200032 P. R. China
| | - Jiale Sang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, , Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road Shanghai 200032 P. R. China
| | - Haijing Xiao
- CCNU‐uOttawa Joint Research Centre, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health College of Chemistry, , Central China Normal University (CCNU), 152 Luoyu Road, Wuhan Hubei 430079 P. R. China
| | - Junxia Li
- CCNU‐uOttawa Joint Research Centre, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health College of Chemistry, , Central China Normal University (CCNU), 152 Luoyu Road, Wuhan Hubei 430079 P. R. China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, , Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road Shanghai 200032 P. R. China
- CCNU‐uOttawa Joint Research Centre, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health College of Chemistry, , Central China Normal University (CCNU), 152 Luoyu Road, Wuhan Hubei 430079 P. R. China
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24
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Ke J, Lee WCC, Wang X, Wang Y, Wen X, Zhang XP. Metalloradical Activation of In Situ-Generated α-Alkynyldiazomethanes for Asymmetric Radical Cyclopropanation of Alkenes. J Am Chem Soc 2022; 144:2368-2378. [PMID: 35099966 PMCID: PMC9032462 DOI: 10.1021/jacs.1c13154] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
α-Alkynyldiazomethanes, generated in situ from the corresponding sulfonyl hydrazones in the presence of a base, can serve as effective metalloradicophiles in Co(II)-based metalloradical catalysis (MRC) for asymmetric cyclopropanation of alkenes. With D2-symmetric chiral amidoporphyrin 2,6-DiMeO-QingPhyrin as the optimal supporting ligand, the Co(II)-based metalloradical system can efficiently activate different α-alkynyldiazomethanes at room temperature for highly asymmetric cyclopropanation of a broad range of alkenes. This catalytic radical process provides a general synthetic tool for stereoselective construction of alkynyl cyclopropanes in high yields with high both diastereoselectivity and enantioselectivity. Combined computational and experimental studies offer several lines of evidence in support of the underlying stepwise radical mechanism for the Co(II)-catalyzed olefin cyclopropanation involving a unique α-metalloradical intermediate that is associated with two resonance forms of α-Co(III)-propargyl radical and γ-Co(III)-allenyl radical. The resulting enantioenriched alkynyl cyclopropanes, as showcased with several stereospecific transformations, may serve as valuable chiral building blocks for stereoselective organic synthesis.
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Affiliation(s)
- Jing Ke
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Wan-Chen Cindy Lee
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Xiaoxu Wang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Yong Wang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Xin Wen
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - X. Peter Zhang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
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25
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Dai L, Zhu Q, Zeng J, Liu Y, Zhong G, Han X, Zeng X. Asymmetric synthesis of chiral imidazolidines by merging copper and visible light-induced photoredox catalysis. Org Chem Front 2022. [DOI: 10.1039/d2qo00303a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A visible light induced copper catalyzed synthesis of decarboxylative radical coupling/cyclization reaction for the synthesis of chiral imidazolidines in high yields and enantioselectivities was reported.
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Affiliation(s)
- Linlong Dai
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Qiaohong Zhu
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Jie Zeng
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Yuheng Liu
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Guofu Zhong
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Xiaoyu Han
- Zhejiang Provincial Key Laboratory for Chemical & Biological Processing Technology of Farm Products, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, China
| | - Xiaofei Zeng
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
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26
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Zhang Y, Cai Z, Struwe J, Ma C, Zeng W, Liao X, Xu M, Ackermann L. Dibenzocycloheptanones construction through a removable P-centered radical: synthesis of allocolchicine analogues. Chem Sci 2021; 12:15727-15732. [PMID: 35003604 PMCID: PMC8654019 DOI: 10.1039/d1sc05404j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/08/2021] [Indexed: 12/17/2022] Open
Abstract
Dibenzocycloheptanones containing a tricyclic 6–7–6-system are present in numerous biologically active natural molecules. However, the simple and efficient preparation of derivatives containing a dibenzocycloheptanone scaffold remains difficult to date. Herein, we report a versatile strategy for the construction of these challenging seven-membered rings using a 7-endo-trig cyclization which is initiated by a phosphorus-centered radical. This approach provides a step-economical regime for the facile assembly of a wide range of phosphorylated dibenzocycloheptanones. Remarkably, we also have devised a traceless addition/exchange strategy for the preparation of dephosphorylated products at room temperature with excellent yields. Therefore, this protocol allows for the concise synthesis of biorelevant allocochicine derivatives. Dibenzocycloheptanones containing a tricyclic 6–7–6-system are present in numerous biologically active natural molecules.![]()
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Affiliation(s)
- Yan Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Drug Discovery & Innovation Center, College of Chemistry and Life Sciences, Zhejiang Normal University China
| | - Zhenzhi Cai
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Drug Discovery & Innovation Center, College of Chemistry and Life Sciences, Zhejiang Normal University China
| | - Julia Struwe
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Germany
| | - Chanchan Ma
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Drug Discovery & Innovation Center, College of Chemistry and Life Sciences, Zhejiang Normal University China
| | - Wangyu Zeng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Drug Discovery & Innovation Center, College of Chemistry and Life Sciences, Zhejiang Normal University China
| | - Xinyi Liao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Drug Discovery & Innovation Center, College of Chemistry and Life Sciences, Zhejiang Normal University China
| | - Min Xu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Drug Discovery & Innovation Center, College of Chemistry and Life Sciences, Zhejiang Normal University China
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Germany
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27
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Gao S, Liu J, Chen M. Catalytic asymmetric transformations of racemic α-borylmethyl-( E)-crotylboronate via kinetic resolution or enantioconvergent reaction pathways. Chem Sci 2021; 12:13398-13403. [PMID: 34777758 PMCID: PMC8528009 DOI: 10.1039/d1sc04047b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/01/2021] [Indexed: 11/03/2022] Open
Abstract
We report herein catalytic asymmetric transformations of racemic α-borylmethyl-(E)-crotylboronate. The Brønsted acid-catalyzed kinetic resolution-allylboration reaction sequence of the racemic reagent gave (Z)-δ-hydroxymethyl-anti-homoallylic alcohols with high Z-selectivities and enantioselectivities upon oxidative workup. In parallel, enantioconvergent pathways were utilized to synthesize chiral nonracemic 1,5-diols and α,β-unsaturated aldehydes with excellent optical purity.
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Affiliation(s)
- Shang Gao
- Department of Chemistry and Biochemistry, Auburn University Auburn AL 36849 USA
| | - Jiaming Liu
- Department of Chemistry and Biochemistry, Auburn University Auburn AL 36849 USA
| | - Ming Chen
- Department of Chemistry and Biochemistry, Auburn University Auburn AL 36849 USA
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