1
|
Hu SP, Gao CH, Liu TM, Miao BY, Wang HC, Yu W, Han B. Integrating Olefin Carboamination and Hofmann-Löffler-Freytag Reaction by Radical Deconstruction of Hydrazonyl N-N Bond. Angew Chem Int Ed Engl 2024; 63:e202400168. [PMID: 38380865 DOI: 10.1002/anie.202400168] [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: 01/03/2024] [Revised: 02/13/2024] [Accepted: 02/19/2024] [Indexed: 02/22/2024]
Abstract
As a type of elementary organic compounds containing N-N single bond, hydrazone involved chemical conversions are extremely extensive, but they are mainly limited to N2-retention and N2-removal modes. We report herein an unprecedented protocol for the realization of division utilization of the N2-moiety of hydrazone by a radical facilitated N-N bond deconstruction strategy. This new conversion mode enables the successful combination of alkene carboamination and Hofmann-Löffler-Freytag reaction by the reaction of N-homoallyl mesitylenesulfonyl hydrazones with ethyl difluoroiodoacetate under photocatalytic redox neutral conditions. Mechanism studies reveal that the reaction undergoes a radical relay involving addition, crucial remote imino-N migration and H-atom transfer. Consequently, a series of structurally significant ϵ-N-sulphonamide-α,α-difluoro-γ-amino acid esters are efficiently produced via continuous C-C bond and dual C-N bonds forging.
Collapse
Affiliation(s)
- Si-Pei Hu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Chen-Hui Gao
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Tu-Ming Liu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Bing-Yang Miao
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Hong-Chen Wang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Wei Yu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Bing Han
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| |
Collapse
|
2
|
Luo S, Pham HDM, Li CC, Qiu Z, Cheng R, Khaliullin RZ, Li CJ. Anti-Markovnikov Hydroalkylation of Styrene Derivatives via Hydrazones Catalyzed by Ru-PNP Complex. Org Lett 2024; 26:3004-3009. [PMID: 38573817 DOI: 10.1021/acs.orglett.4c00610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
A well-defined Ru(II)-PNP complex demonstrated high activity in the anti-Markovnikov hydroalkylation of nonpolarized terminal alkenes via hydrazones. Hydrazone served as a carbanion equivalent to combine with the electrophilic alkene substrate upon activation by the ruthenium catalyst, forming a new C-C bond in a concerted pathway with N2 as the only theoretical byproduct. Experimental and computational studies suggested the existence of a push-pull interaction that activated the alkene for hydrazone addition and then deduced the mechanism.
Collapse
Affiliation(s)
- Siyi Luo
- Department of Chemistry, and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Hanh D M Pham
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Chen-Chen Li
- Department of Chemistry, and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Zihang Qiu
- Department of Chemistry, and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Ruofei Cheng
- Department of Chemistry, and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Rustam Z Khaliullin
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Chao-Jun Li
- Department of Chemistry, and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| |
Collapse
|
3
|
Maekawa K, Komine N, Kiyota S, Hirano M. Direct synthesis of conjugated tetraenes from 1,3-enynes with 1,3-dienes. Org Biomol Chem 2024; 22:2098-2114. [PMID: 38374804 DOI: 10.1039/d4ob00077c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
New direct access to conjugated tetraenes has been achieved. A Ru(0)-catalysed reaction of 1,3-enynes with 1,3-dienes gives 1,3,5,7-octatetraene derivatives by formal regioselective insertion of the alkynyl group of 1,3-enynes into the terminal C-H bond in 1,3-dienes. With a silyl substituent on the alkynyl side in 1,3-enynes, the reaction regioselectively proceeds to give the linear cross-dimerisation product having the silyl group at the internal position. Stoichiometric and DFT calculations support the oxidative coupling mechanism for the linear cross-dimerisation. Methyl (2E,4E,6E,8E)-10-hydroxy-2,4,6,8-decatetraenoate, a versatile polyene intermediate, is accessed by this method as a formal synthesis of biologically active compounds.
Collapse
Affiliation(s)
- Kanako Maekawa
- Department of Applied Chemistry, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan.
| | - Nobuyuki Komine
- Department of Applied Chemistry, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan.
| | - Sayori Kiyota
- Department of Applied Chemistry, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan.
| | - Masafumi Hirano
- Department of Applied Chemistry, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan.
| |
Collapse
|
4
|
Chen K, Zhu H, Liu S, Bai J, Guo Y, Ding K, Peng Q, Wang X. Switch in Selectivities by Dinuclear Nickel Catalysis: 1,4-Hydroarylation of 1,3-Dienes to Z-Olefins. J Am Chem Soc 2023. [PMID: 37903244 DOI: 10.1021/jacs.3c09283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
One of the most challenging tasks in organic synthesis is to control selectivities, especially switching the well-known selectivity to obtain new isomers that were previously inaccessible. Inspired by biological catalysis involving multiple metal centers, catalysis enabled by binuclear metal complexes offers the potential to induce reactivity and selectivity that might not be available to mononuclear catalysts. Herein, we describe that using a macrocyclic bis pyridyl diimine dinickel complex as the catalyst, the commonly observed 4,3-regioselectivity of hydroarylation of 1,3-dienes is switched to 1,4-hydroarylation with thermodynamically less stable Z-stereoselectivity, offering challenging synthetic target Z-olefins. DFT calculations show that the activation of 1,3-diene proceeds through dinuclear Ni-diolefin coordination, and the synergistic effects of two Ni nuclei enable reactivity and selectivity of this binuclear catalysis substantially different from those of mononuclear nickel complexes in the current reaction.
Collapse
Affiliation(s)
- Ke Chen
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Hongdan Zhu
- State Key Laboratory of Elemento-Organic Chemistry and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Shuang Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Jiahui Bai
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yinlong Guo
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Kuiling Ding
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Qian Peng
- State Key Laboratory of Elemento-Organic Chemistry and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiaoming Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, 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 Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China
| |
Collapse
|
5
|
Ren SY, Zhou Q, Zhou HY, Wang LW, Mulina OM, Paveliev SA, Tang HT, Terentʼev AO, Pan YM, Meng XJ. Three-Component Electrochemical Aminoselenation of 1,3-Dienes. J Org Chem 2023; 88:5760-5771. [PMID: 37027491 DOI: 10.1021/acs.joc.3c00214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
Abstract
Azoles and organoselenium compounds are pharmacologically important scaffolds in medicinal chemistry and natural products. We developed an efficient regioselective electrochemical aminoselenation reaction of 1,3-dienes, azoles, and diselenide derivatives to access selenium-containing allylazoles skeletons. This protocol is more economical and environmentally friendly and features a broad substrate scope; pyrazole, triazole, and tetrazolium were all tolerated under the standard conditions, which could be applied to the expedient synthesis of bioactive molecules and in the pharmaceutical industry.
Collapse
Affiliation(s)
- Sai-Yan Ren
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Qi Zhou
- Adesis Inc. A Universal Display Company, New Castle, Delaware 19720, United States
| | - He-Yang Zhou
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Lin-Wei Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Olga M Mulina
- Russian Acad Sci, Zelinsky Inst Organ Chem, 47 Leninsky Prosp, Moscow 119991, Russia
| | - Stanislav A Paveliev
- Russian Acad Sci, Zelinsky Inst Organ Chem, 47 Leninsky Prosp, Moscow 119991, Russia
| | - Hai-Tao Tang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Alexander O Terentʼev
- Russian Acad Sci, Zelinsky Inst Organ Chem, 47 Leninsky Prosp, Moscow 119991, Russia
| | - Ying-Ming Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Xiu-Jin Meng
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
| |
Collapse
|
6
|
Li CJ. HOME-Chemistry: hydrazone as organo-metallic equivalent. PURE APPL CHEM 2023. [DOI: 10.1515/pac-2022-1003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Abstract
The modern synthetic chemistry heavily relies on the use of stoichiometric organometallic reagents to react with various electrophiles. The dependence on stoichiometric quantities of metals and often organic halides as precursors, in turn both produces copious amounts of metal halide wastes as well as leads to concerns on future metal sustainability. Inspired by the classical Wolff-Kishner reduction, our lab has recently developed a general strategy of
HOME-Chemistry
, directly using naturally abundant alcohols/aldehydes and ketones as feedstocks with the releasing of innocuous water and nitrogen gas. These reactions include 1,2-carbonyl/imine addition, conjugate addition, carboxylation, olefination, cross-coupling arylation/allylation, alkylation, hydroalkylation and C-heteroatom formations. This article provides a brief summary on this chemistry.
Collapse
Affiliation(s)
- Chao-Jun Li
- Department of Chemistry, and FQRNT Center for Green Chemistry and Catalysis , McGill University , 801 Sherbrooke Street West , Montreal , Quebec H3A0B8 , Canada
| |
Collapse
|
7
|
Cheng R, de Ruiter G, Li CJ. Cobalt-catalyzed cross-coupling of Umpolung carbonyls with alkyl halides under mild conditions. Chem Commun (Camb) 2022; 58:11563-11566. [PMID: 36165102 DOI: 10.1039/d2cc04302e] [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
While classical cross-couplings are dominated by palladium and nickel catalysts, cobalt-based catalysts have shown unique advantages for such cross-coupling reactions in terms of higher catalytic activity and lower toxicity. Herein, we describe a novel cobalt-catalyzed alkyl-alkyl cross-coupling reaction of hydrazone with alkyl halides under mild reaction conditions, where the use of a PNP-type pincer ligand is essential for catalysis. Both aldehyde and ketone hydrazones are compatible with this reaction, giving a series of C(sp3)-C(sp3) coupling products in moderate to good yields.
Collapse
Affiliation(s)
- Ruofei Cheng
- Department of Chemistry, and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 0B8, Canada.
| | - Graham de Ruiter
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Technion City, Haifa 3200008, Israel
| | - Chao-Jun Li
- Department of Chemistry, and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 0B8, Canada.
| |
Collapse
|
8
|
Xia S, Cao D, Zeng H, He LN, Li CJ. Nickel-Catalyzed Stereoselective Alkenylation of Ketones Mediated by Hydrazine. JACS AU 2022; 2:1929-1934. [PMID: 36032538 PMCID: PMC9400169 DOI: 10.1021/jacsau.2c00320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/12/2022] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
The direct conversion of naturally abundant carbonyl compounds provides a powerful platform for the efficient synthesis of valuable chemicals. In particular, the conversion of ketones to alkenes is a commonly encountered chemical transformation, often achieved via the multistep Shapiro reaction with tosylhydrazone and over stoichiometric organolithium or Grignard reagent. Herein, we report an earth abundant nickel-catalyzed alkenylation of naturally abundant methylene ketones to afford a wide range of alkene derivatives, mediated by hydrazine. The protocol features a broad substrate scope (including alkyl ketones, aryl ketones, and aldehydes), good functional group compatibility, mild reaction conditions, water tolerance, and only environmentally friendly N2, H2, and H2O as theoretical byproducts. Moreover, gram-scale synthesis with good yield and generation of pharmaceutical intermediates highlighted its practical applicability.
Collapse
Affiliation(s)
- Shumei Xia
- Department
of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, College
of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Dawei Cao
- Department
of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
- The
State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Huiying Zeng
- The
State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Liang-Nian He
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, College
of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Chao-Jun Li
- Department
of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| |
Collapse
|
9
|
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.![]()
Collapse
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
| |
Collapse
|
10
|
Rapid syntheses of N-fused heterocycles via acyl-transfer in heteroaryl ketones. Nat Commun 2022; 13:3337. [PMID: 35680930 PMCID: PMC9184603 DOI: 10.1038/s41467-022-31063-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 05/30/2022] [Indexed: 11/25/2022] Open
Abstract
The wide-ranging potencies of bioactive N-fused heterocycles inspire the development of synthetic transformations that simplify preparation of their complex, diverse structural motifs. Heteroaryl ketones are ubiquitous, readily available, and inexpensive molecular scaffolds, and are thus synthetically appealing as precursors in preparing N-fused heterocycles via intramolecular acyl-transfer. To best of our knowledge, acyl-transfer of unstrained heteroaryl ketones remains to be demonstrated. Here, we show an acyl transfer-annulation to convert heteroaryl ketones to N-fused heterocycles. Driven via aromatisation, the acyl of a heteroaryl ketone can be transferred from the carbon to the nitrogen of the corresponding heterocycle. The reaction commences with the spiroannulation of a heteroaryl ketone and an alkyl bromide, with the resulting spirocyclic intermediate undergoing aromatisation-driven intramolecular acyl transfer. The reaction conditions are optimised, with the reaction exhibiting a broad substrate scope in terms of the ketone and alkyl bromide. The utility of this protocol is further demonstrated via application to complex natural products and drug derivatives to yield heavily functionalised N-fused heterocycles. Heteroaryl ketones are ubiquitous molecular scaffolds but seldom used as synthetic precusors. Here, the authors develop an acyl transfer-annulation to convert heteroaryl ketones to N-fused heterocycles, which are prevalent in bioactive molecules.
Collapse
|
11
|
Wang W, He S, Zhong Y, Chen J, Cai C, Luo Y, Xia Y. Cobalt-Catalyzed Z to E Geometrical Isomerization of 1,3-Dienes. J Org Chem 2022; 87:4712-4723. [PMID: 35275485 DOI: 10.1021/acs.joc.1c03164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient cobalt-catalyzed geometrical isomerization of 1,3-dienes is described. In the combination of a CoCl2 precatalyst with an amido-diphosphine-oxazoline ligand, the geometrical isomerization of E/Z mixtures of 1,3-dienes proceed in a stereoconvergent manner, affording (E) isomers in high stereoselectivity. This facile transformation features a broad substrate scope with good functional group tolerance and could be scaled up to the gram scale smoothly with a catalyst loading of 1 mol %.
Collapse
Affiliation(s)
- Wei Wang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Shuying He
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yuqing Zhong
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Jianhui Chen
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Cheng Cai
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yanshu Luo
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| |
Collapse
|
12
|
Kan J, Chen Z, Qiu Z, Lv L, Li C, Li CJ. Umpolung carbonyls enable direct allylation and olefination of carbohydrates. SCIENCE ADVANCES 2022; 8:eabm6840. [PMID: 35263121 PMCID: PMC8906572 DOI: 10.1126/sciadv.abm6840] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
Mother Nature has its own arts to build a vast number of carbohydrates; however, there is still a lack of tools for selective functionalization of native carbohydrates through C─C bond formation. Such a long-standing challenge for the synthetic community lies into the intrinsic problems related to the innate properties of carbohydrates, e.g., the ease to oligomerization or polymerization, the difficulty of chemoselectivity control in the presence of multiple hydroxyl groups, the great challenge to retain the multiple chiral centers during the transformation, etc. Here, by applying an umpolung strategy of carbohydrate carbonyls, we report a direct deoxygenative allylation and olefination of carbohydrates to tackle the abovementioned issues. The reaction is compatible with a wide range of natural carbohydrates, providing a direct synthetic method to use carbohydrates as multiple C-centered chiral synthons to achieve C─C bond cross-coupling reactions. Furthermore, the synthetic applicability is demonstrated by late-stage modifications of natural products and pharmaceutical derivatives.
Collapse
Affiliation(s)
- Jian Kan
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Zhangpei Chen
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
- Center for Molecular Science and Engineering, College of Sciences, Northeastern University, Shenyang 110819, P. R. China
| | - Zihang Qiu
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Leiyang Lv
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Chenchen Li
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Chao-Jun Li
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| |
Collapse
|
13
|
Li CJ. Carbon–carbon bond formation and green chemistry: one dream and 30 years hence. CAN J CHEM 2022. [DOI: 10.1139/cjc-2021-0053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Carbon–carbon bond formation is the core of organic synthesis, in which organometallic reagents play the key role in the forms of 1,2-nucleophilic additions, conjugate additions, and transition-metal catalyzed cross-couplings. These reactions have enabled the production of a wide range of organic molecules in our society. Despite the enormous power of organometallic reagents in chemical synthesis, they have inherent drawbacks in the eyes of future sustainability. This account summarizes our efforts over the past three decades on the exploration of new scientific means to overcome the drawbacks and limitations of these classical organometallic reactions.
Collapse
Affiliation(s)
- Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
| |
Collapse
|
14
|
Li J, Huang C, Li C. Deoxygenative Functionalizations of Aldehydes, Ketones and Carboxylic Acids. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jianbin Li
- Department of Chemistry FRQNT Centre for Green Chemistry and Catalysis McGill University 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
| | - Chia‐Yu Huang
- Department of Chemistry FRQNT Centre for Green Chemistry and Catalysis McGill University 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
| | - Chao‐Jun Li
- Department of Chemistry FRQNT Centre for Green Chemistry and Catalysis McGill University 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
| |
Collapse
|
15
|
Chen X, Lu S, Deng P, Chang X, Zhao Y, Ma Y, Zhang D, Xia F, Yang L, Wang J, Sun P. Lewis Acid Regulated Divergent Catalytic Reaction between Quinone Imine Ketals (QIKs) and 1,3‐Dicarbonyl Compounds: Switchable Access to Multiple Products Including 2‐Aryl‐1,3‐Dicarbonyl Compounds, Indoles, and Benzofurans. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202100607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xingyu Chen
- Institute of Chinese Materia Medica and Artemisinin Research Center Academy of Chinese Medical Sciences Beijing 100700 People's Republic of China
| | - Sixian Lu
- Institute of Chinese Materia Medica and Artemisinin Research Center Academy of Chinese Medical Sciences Beijing 100700 People's Republic of China
| | - Ping Deng
- School of Pharmacy Chongqing University Chongqing 400016 People's Republic of China
| | - Xiaoqiang Chang
- Institute of Chinese Materia Medica and Artemisinin Research Center Academy of Chinese Medical Sciences Beijing 100700 People's Republic of China
| | - Yifan Zhao
- Institute of Chinese Materia Medica and Artemisinin Research Center Academy of Chinese Medical Sciences Beijing 100700 People's Republic of China
| | - Yue Ma
- Institute of Chinese Materia Medica and Artemisinin Research Center Academy of Chinese Medical Sciences Beijing 100700 People's Republic of China
| | - Dong Zhang
- Institute of Chinese Materia Medica and Artemisinin Research Center Academy of Chinese Medical Sciences Beijing 100700 People's Republic of China
| | - Fei Xia
- Institute of Chinese Materia Medica and Artemisinin Research Center Academy of Chinese Medical Sciences Beijing 100700 People's Republic of China
| | - Lan Yang
- Institute of Chinese Materia Medica and Artemisinin Research Center Academy of Chinese Medical Sciences Beijing 100700 People's Republic of China
| | - Jigang Wang
- Institute of Chinese Materia Medica and Artemisinin Research Center Academy of Chinese Medical Sciences Beijing 100700 People's Republic of China
| | - Peng Sun
- Institute of Chinese Materia Medica and Artemisinin Research Center Academy of Chinese Medical Sciences Beijing 100700 People's Republic of China
| |
Collapse
|
16
|
Long J, Ding C, Yin G. Nickel/Brønsted acid dual-catalyzed regioselective C–H bond allylation of phenols with 1,3-dienes. Org Chem Front 2022. [DOI: 10.1039/d2qo00637e] [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 nickel/Brønsted acid dual-catalyzed C-H bond ortho-allylation of phenols with 1,3-dienes has been developed. This methodology is readily applicable to the modification of complex pharmaceutical molecules.
Collapse
Affiliation(s)
- Jiao Long
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Chao Ding
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Guoyin Yin
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| |
Collapse
|
17
|
Wang S, Xiang Y, Chen T, Wu X, Xing D. Construction of quaternary carbon centers by KOtBu-catalyzed α-homoallylic alkylation of lactams with 1,3-dienes. Org Chem Front 2022. [DOI: 10.1039/d1qo01927a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We report a KOtBu-catalyzed α-homoallylic alkylation of lactams with 1,3-dienes.
Collapse
Affiliation(s)
- Shang Wang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Yunfei Xiang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Tiantian Chen
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Xiang Wu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Dong Xing
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| |
Collapse
|
18
|
Li J, Li CJ, Huang CY. Deoxygenative Functionalizations of Aldehydes, Ketones and Carboxylic Acids. Angew Chem Int Ed Engl 2021; 61:e202112770. [PMID: 34780098 DOI: 10.1002/anie.202112770] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Indexed: 11/12/2022]
Abstract
Conversion of carbonyl compounds, including aldehydes, ketones and carboxylic acids, into functionalized alkanes via deoxygenation would be highly desirable from a sustainability perspective and very enabling in chemical synthesis. This review covers the recent methodology development in carbonyl and carboxyl deoxygenative functionalizations, highlighting some typical and significant contributions in this field. These advances will be categorized based on types of bond formation, and in each part, selected examples will be discussed from their generalized mechanistic perspectives. Four summarized reactivity modes of aldehydes and ketones during the deoxygenation, namely, bis-electrophile, carbenoid, bis-nucleophile and alkyl radical, are presented, while the carboxylic acids are deoxygenated mainly via activated carbonyl or acetal intermediates.
Collapse
Affiliation(s)
| | - Chao-Jun Li
- McGill University, Chemistry, 801 Sherbrooke St. West, H3A0B8, Montreal, CANADA
| | | |
Collapse
|
19
|
Wang S, König B. Katalytische Erzeugung von Carbanionen durch Carbonyl‐Umpolung. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105469] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Shun Wang
- Fakultät für Chemie und Pharmazie Universität Regensburg Universitätsstraße 31 93053 Regensburg Deutschland
| | - Burkhard König
- Fakultät für Chemie und Pharmazie Universität Regensburg Universitätsstraße 31 93053 Regensburg Deutschland
| |
Collapse
|
20
|
Gao AZ, Chen S. Mechanism and Selectivities in Ru-Catalyzed Anti-Markovnikov Formal Hydroalkylation of 1,3-Dienes and Enynes: A Computational Study. J Org Chem 2021; 86:11895-11904. [PMID: 34406774 DOI: 10.1021/acs.joc.1c01319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The mechanism of the Ru(II)-catalyzed anti-Markovnikov formal hydroalkylation of 1,3-dienes and enynes by hydrazones has been elucidated using density functional theory (DFT) calculations. Our results indicate that the C-C bond formation proceeds through a highly polar outer-sphere transition state (TS) stabilized by the THF solvent, not the ordered inner-sphere TS as originally proposed. The regioselectivity for 1,2-anti-Markovnikov addition is primarily due to the formation of an extensively π-conjugated intermediate after the nucleophilic attack on the 1-position of the diene. The stability of this intermediate means that nucleophilic attack at the 1-position is able to utilize the outer-sphere pathway, while attacks on all other positions of the diene must proceed through more crowded and less-favorable inner-sphere TSs. We show that the electronics of substituents on the hydrazone and the diene have a significant impact on the C-C formation barrier, which rationalizes the limitations on the substrate scope. The preferred coordination sphere around Ru(II) and the rigidity of the reacting substrates lead to a sterically demanding TS geometry, which explains the sensitivity of the reaction to the ligand size.
Collapse
Affiliation(s)
- Anthony Z Gao
- Department of Chemistry and Biochemistry, Oberlin College, Oberlin, Ohio 44074, United States
| | - Shuming Chen
- Department of Chemistry and Biochemistry, Oberlin College, Oberlin, Ohio 44074, United States
| |
Collapse
|
21
|
Dai XJ, Li CC, Li CJ. Carbonyl umpolung as an organometallic reagent surrogate. Chem Soc Rev 2021; 50:10733-10742. [PMID: 34382626 DOI: 10.1039/d1cs00418b] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Construction of new carbon-carbon bonds is the cornerstone of organic chemistry. Organometallic reagents are amongst the most robust and versatile nucleophiles for this purpose. Polarization of the metal-carbon bonds in these reagents facilitates their reactions with a vast array of electrophiles to achieve chemical diversification. The dependence on stoichiometric quantities of metals and often organic halides as feedstock precursors, which in turn produces copious amounts of metal halide waste, is the key limitation of the classical organometallic reactions. Inspired by the classical Wolff-Kishner reduction converting carbonyl groups in aldehydes or ketones into methylene derivatives, our group has recently developed strategies to couple various alcohols, aldehydes, and ketones with a broad range of both hard and soft carbon electrophiles in the presence of catalytic amounts of transition metals, via the hydrazone derivatives: i.e., as organometallic reagent surrogates. This Tutorial Review describes the chronological development of this concept in our research group, detailing its creation in the context of a deoxygenation reaction and evolution to a more general carbon-carbon bond-forming strategy. The latter is demonstrated by the employment of carbonyl-derived alkyl carbanions in various transition-metal catalyzed chemical transformations, including 1,2-carbonyl/imine addition, conjugate addition, carboxylation, olefination, cross-coupling, allylation, alkylation and hydroalkylation.
Collapse
Affiliation(s)
- Xi-Jie Dai
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 0B8, Canada.
| | - Chen-Chen Li
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 0B8, Canada.
| | - Chao-Jun Li
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 0B8, Canada.
| |
Collapse
|
22
|
Wang S, König B. Catalytic Generation of Carbanions through Carbonyl Umpolung. Angew Chem Int Ed Engl 2021; 60:21624-21634. [PMID: 33991000 PMCID: PMC8518712 DOI: 10.1002/anie.202105469] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Indexed: 12/16/2022]
Abstract
Carbonyl Umpolung is a powerful strategy in organic chemistry to construct complex molecules. Over the last few years, versatile catalytic approaches for the generation of acyl anion equivalents from carbonyl compounds have been developed, but methods to obtain alkyl carbanions from carbonyl compounds in a catalytic fashion are still at an early stage. This Minireview summarizes recent progress in the generation of alkyl carbanions through catalytic carbonyl Umpolung. Two different catalytic approaches can be utilized to enable the generation of alkyl carbanions from carbonyl compounds: the catalytic Wolff–Kishner reaction and the catalytic single‐electron reduction of carbonyl compounds and imines. We discuss the reaction scope, mechanistic insights, and synthetic applications of the methods as well as potential future developments.
Collapse
Affiliation(s)
- Shun Wang
- Faculty of Chemistry and Pharmacy University of Regensburg Universitaetsstrasse 31 93053 Regensburg Germany
| | - Burkhard König
- Faculty of Chemistry and Pharmacy University of Regensburg Universitaetsstrasse 31 93053 Regensburg Germany
| |
Collapse
|
23
|
Lv L, Li C. Palladium‐Catalyzed Defluorinative Alkylation of
gem
‐Difluorocyclopropanes: Switching Regioselectivity via Simple Hydrazones. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102240] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Leiyang Lv
- Department of Chemistry Renmin University of China Beijing 100872 China
| | - Chao‐Jun Li
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis McGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| |
Collapse
|
24
|
Lv L, Li C. Palladium‐Catalyzed Defluorinative Alkylation of
gem
‐Difluorocyclopropanes: Switching Regioselectivity via Simple Hydrazones. Angew Chem Int Ed Engl 2021; 60:13098-13104. [PMID: 33756022 DOI: 10.1002/anie.202102240] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/12/2021] [Indexed: 01/08/2023]
Affiliation(s)
- Leiyang Lv
- Department of Chemistry Renmin University of China Beijing 100872 China
| | - Chao‐Jun Li
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis McGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| |
Collapse
|
25
|
Pang X, Zhao ZZ, Wei XX, Qi L, Xu GL, Duan J, Liu XY, Shu XZ. Regiocontrolled Reductive Vinylation of Aliphatic 1,3-Dienes with Vinyl Triflates by Nickel Catalysis. J Am Chem Soc 2021; 143:4536-4542. [DOI: 10.1021/jacs.1c00142] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Xiaobo Pang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
| | - Zhen-Zhen Zhao
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
| | - Xiao-Xue Wei
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
| | - Liangliang Qi
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
| | - Guang-Li Xu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
| | - Jicheng Duan
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
| | - Xue-Yuan Liu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
| | - Xing-Zhong Shu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
| |
Collapse
|
26
|
Jiang WS, Ji DW, Zhang WS, Zhang G, Min XT, Hu YC, Jiang XL, Chen QA. Orthogonal Regulation of Nucleophilic and Electrophilic Sites in Pd-Catalyzed Regiodivergent Couplings between Indazoles and Isoprene. Angew Chem Int Ed Engl 2021; 60:8321-8328. [PMID: 33463001 DOI: 10.1002/anie.202100137] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Indexed: 12/29/2022]
Abstract
Depending on the reactant property and reaction mechanism, one major regioisomer can be favored in a reaction that involves multiple active sites. Herein, an orthogonal regulation of nucleophilic and electrophilic sites in the regiodivergent hydroamination of isoprene with indazoles is demonstrated. Under Pd-hydride catalysis, the 1,2- or 4,3-insertion pathway with respect to the electrophilic sites on isoprene could be controlled by the choice of ligands. In terms of the nucleophilic sites on indazoles, the reaction occurs at either the N1 - or N2 -position of indazoles is governed by the acid co-catalysts. Preliminary experimental studies have been performed to rationalize the mechanism and regioselectivity. This study not only contributes a practical tool for selective functionalization of isoprene, but also provides a guide to manipulate the regioselectivity for the N-functionalization of indazoles.
Collapse
Affiliation(s)
- Wen-Shuang Jiang
- Department of Medicinal Chemistry, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China.,Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Ding-Wei Ji
- Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Wei-Song Zhang
- Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Gong Zhang
- Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Xiang-Ting Min
- Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Yan-Cheng Hu
- Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Xu-Liang Jiang
- Department of Medicinal Chemistry, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China
| | - Qing-An Chen
- Dalian Institute of Chemical Physics, University of Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| |
Collapse
|
27
|
Jiang W, Ji D, Zhang W, Zhang G, Min X, Hu Y, Jiang X, Chen Q. Orthogonal Regulation of Nucleophilic and Electrophilic Sites in Pd‐Catalyzed Regiodivergent Couplings between Indazoles and Isoprene. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100137] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Wen‐Shuang Jiang
- Department of Medicinal Chemistry Shenyang Pharmaceutical University 103 Wenhua Road Shenyang 110016 China
- Dalian Institute of Chemical Physics University of Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Ding‐Wei Ji
- Dalian Institute of Chemical Physics University of Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Wei‐Song Zhang
- Dalian Institute of Chemical Physics University of Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Gong Zhang
- Dalian Institute of Chemical Physics University of Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Xiang‐Ting Min
- Dalian Institute of Chemical Physics University of Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Yan‐Cheng Hu
- Dalian Institute of Chemical Physics University of Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Xu‐Liang Jiang
- Department of Medicinal Chemistry Shenyang Pharmaceutical University 103 Wenhua Road Shenyang 110016 China
| | - Qing‐An Chen
- Dalian Institute of Chemical Physics University of Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| |
Collapse
|
28
|
Tsuji H, Takahashi Y, Kawatsura M. Nickel-catalyzed hydroalkylation of 1,3-dienes with malonates using a homoallyl carbonate as the 1,3-diene and hydride source. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
29
|
Ni-catalyzed regio- and stereo-defined intermolecular cross-electrophile dialkylation of alkynes without directing group. Nat Commun 2021; 12:928. [PMID: 33568646 PMCID: PMC7876002 DOI: 10.1038/s41467-021-21083-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 01/11/2021] [Indexed: 01/28/2023] Open
Abstract
The development of straightforward synthesis of regio- and stereodefined alkenes with multiple aliphatic substituents under mild conditions is an unmet challenge owing to competitive β-hydride elimination and selectivity issues. Herein, we report the nickel-catalyzed intermolecular cross-dialkylation of alkynes devoid of directing or activating groups to afford multiple aliphatic substituted alkenes in a syn-selective fashion at room temperature. The combination of two-electron oxidative cyclometallation and single-electron cross-electrophile coupling of nickel enables the syn-cross-dialkylation of alkynes at room temperature. This reductive protocol enables the sequential installation of two different alkyl substituents onto alkynes in a regio- and stereo-selective manner, circumventing the tedious preformation of sensitive organometallic reagents. The synthetic utility of this protocol is demonstrated by efficient synthesis of multi-substituted unfunctionalized alkenes and diverse transformations of the product.
Collapse
|
30
|
Chang Z, Li F, Xia C, Li F, Li H. Regioselective Access to 3‐Ethylideneflavanones via Rhodium(I)‐Catalyzed 1,3‐Enyne Hydroacylation/Annulation Cascades. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001565] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Zhi‐Xin Chang
- Institute of Pharmacology School of Pharmaceutical Sciences Shandong First Medical University & Shandong Academy of Medical Sciences 619 Changcheng Road Taian 271016 People's Republic of China
| | - Fu‐Rong Li
- Institute of Pharmacology School of Pharmaceutical Sciences Shandong First Medical University & Shandong Academy of Medical Sciences 619 Changcheng Road Taian 271016 People's Republic of China
| | - Chengcai Xia
- Institute of Pharmacology School of Pharmaceutical Sciences Shandong First Medical University & Shandong Academy of Medical Sciences 619 Changcheng Road Taian 271016 People's Republic of China
| | - Fei Li
- Institute of Pharmacology School of Pharmaceutical Sciences Shandong First Medical University & Shandong Academy of Medical Sciences 619 Changcheng Road Taian 271016 People's Republic of China
| | - Hong‐Shuang Li
- Institute of Pharmacology School of Pharmaceutical Sciences Shandong First Medical University & Shandong Academy of Medical Sciences 619 Changcheng Road Taian 271016 People's Republic of China
| |
Collapse
|
31
|
Dang HT, Nguyen VD, Haug GC, Vuong NTH, Arman HD, Larionov OV. Z-Selective Dienylation Enables Stereodivergent Construction of Dienes and Unravels a Ligand-Driven Mechanistic Dichotomy. ACS Catal 2021; 11:1042-1052. [PMID: 33968463 DOI: 10.1021/acscatal.0c05574] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Development of stereoselective and efficient reactions for construction of conjugated dienes and polyenes has remained at the forefront of organic chemistry, due to their key roles in medicinal chemistry, organic synthesis, and materials science. The synthesis of conjugated dienes and polyenes is typically accomplished in a multistep manner by sequential installation of individual C=C bonds because it allows for control of stereoselectivity and efficiency of formation of each double bond. A conceptually distinct dienylation approach entails a stereoselective appendage of a four-carbon unit, shortcutting diene synthesis. Dienylation with sulfolene provided a direct route to E-dienes, but the synthesis of substantially more challenging Z-dienes remained elusive. Here, we report that a highly Z-selective dienylation can be now achieved by a simple adjustment of a ligand, enabling stereodivergent synthesis of E- and Z-dienes from one reagent and in one step. A detailed mechanistic investigation of the E- and Z-selective dienylation provided insight into the divergent behavior of the two catalytic systems and revealed that differences in relative stabilities of catalytically active palladium phosphine complexes have a major impact on the stereochemical outcomes of the dienylation.
Collapse
Affiliation(s)
- Hang T. Dang
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Viet D. Nguyen
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Graham C. Haug
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Ngan T. H. Vuong
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Hadi D. Arman
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Oleg V. Larionov
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| |
Collapse
|
32
|
Zhang G, Yang K, Wang S, Feng Q, Song Q. N 2H 4-H 2O Enabled Umpolung Cyclization of o-Nitro Chalcones for the Construction of Quinoline N-Oxides. Org Lett 2021; 23:595-600. [PMID: 33378210 DOI: 10.1021/acs.orglett.0c04162] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Umpolung is a unique strategy which converts the property of an atom into the opposite one. An efficient and general method for the construction of quinoline N-oxides via umpolung of carbonyl groups was developed from ortho-nitro chalcones and hydrazine in basic conditions. The strategy is transition-metal free and has good functional group tolerance, environmental friendliness, as well as mild reaction conditions with nitrogen gas as the byproduct.
Collapse
Affiliation(s)
- Guan Zhang
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Kai Yang
- College of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
| | - Shihui Wang
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Qiang Feng
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China.,College of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
| |
Collapse
|
33
|
Tao X, Gong H. Regiocontrolled Reductive Vinylation of Aliphatic 1,3-Dienes. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202100036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
34
|
Lv L, Li CJ. Ruthenium catalyzed β-selective alkylation of vinylpyridines with aldehydes/ketones via N 2H 4 mediated deoxygenative couplings. Chem Sci 2020; 12:2870-2875. [PMID: 34164052 PMCID: PMC8179402 DOI: 10.1039/d0sc06586b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Umpolung (polarity reversal) tactics of aldehydes/ketones have greatly broadened carbonyl chemistry by enabling transformations with electrophilic reagents and deoxygenative functionalizations. Herein, we report the first ruthenium-catalyzed β-selective alkylation of vinylpyridines with both naturally abundant aromatic and aliphatic aldehyde/ketones via N2H4 mediated deoxygenative couplings. Compared with one-electron umpolung of carbonyls to alcohols, this two-electron umpolung strategy realized reductive deoxygenation targets, which were not only applicable to the regioselective alkylation of a broad range of 2/4-alkene substituted pyridines, but also amenable to challenging 3-vinyl and steric-embedded internal pyridines as well as their analogous heterocyclic structures. Ruthenium-catalyzed β-selective alkylation of vinylpyridines with carbonyls (both aromatic and aliphatic ketones/aldehydes) via N2H4 mediated deoxygenative couplings was achieved.![]()
Collapse
Affiliation(s)
- Leiyang Lv
- Department of Chemistry, Renmin University of China Beijing 100872 China
| | - Chao-Jun Li
- Department of Chemistry, FRQNT Center for Green Chemistry and Catalysis, McGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| |
Collapse
|
35
|
Yu L, Lv L, Qiu Z, Chen Z, Tan Z, Liang Y, Li C. Palladium‐Catalyzed Formal Hydroalkylation of Aryl‐Substituted Alkynes with Hydrazones. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005132] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Lin Yu
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis McGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
- State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P. R. China
| | - Leiyang Lv
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis McGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| | - Zihang Qiu
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis McGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| | - Zhangpei Chen
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis McGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| | - Ze Tan
- State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P. R. China
| | - Yu‐Feng Liang
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis McGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| | - Chao‐Jun Li
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis McGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| |
Collapse
|
36
|
Yu L, Lv L, Qiu Z, Chen Z, Tan Z, Liang Y, Li C. Palladium‐Catalyzed Formal Hydroalkylation of Aryl‐Substituted Alkynes with Hydrazones. Angew Chem Int Ed Engl 2020; 59:14009-14013. [PMID: 32365254 DOI: 10.1002/anie.202005132] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Lin Yu
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis McGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
- State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P. R. China
| | - Leiyang Lv
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis McGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| | - Zihang Qiu
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis McGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| | - Zhangpei Chen
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis McGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| | - Ze Tan
- State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P. R. China
| | - Yu‐Feng Liang
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis McGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| | - Chao‐Jun Li
- Department of Chemistry and FRQNT Center for Green Chemistry and Catalysis McGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| |
Collapse
|
37
|
Yao J, Chen Z, Yu L, Lv L, Cao D, Li CJ. Palladium-catalyzed hydroalkylation of methylenecyclopropanes with simple hydrazones. Chem Sci 2020; 11:10759-10763. [PMID: 34094329 PMCID: PMC8162302 DOI: 10.1039/d0sc01221a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
A palladium-catalyzed hydroalkylation reaction of methylenecyclopropanes via highly selective C–C σ-bond scission was achieved under mild conditions, in which simple hydrazones served as carbanion equivalents. This method featured good functional group compatibility, affording high yields of C-alkylated terminal alkenes. A palladium-catalyzed hydroalkylation of methylenecyclopropanes via selective C–C σ-bond scission was achieved, in which simple hydrazones served as carbanion equivalents. This method affords high yields of C-alkylated terminal alkenes with good functional group compatibility.![]()
Collapse
Affiliation(s)
- Jinzhong Yao
- Department of Chemistry, FQRNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada .,College of Biological, Chemical Sciences and Engineering, Jiaxing University Jiaxing 314001 People's Republic of China
| | - Zhangpei Chen
- Department of Chemistry, FQRNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
| | - Lin Yu
- Department of Chemistry, FQRNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
| | - Leiyang Lv
- Department of Chemistry, FQRNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
| | - Dawei Cao
- Department of Chemistry, FQRNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
| | - Chao-Jun Li
- Department of Chemistry, FQRNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
| |
Collapse
|
38
|
Yang D, Huang H, Li MH, Si XJ, Zhang H, Niu JL, Song MP. Directed Cobalt-Catalyzed anti-Markovnikov Hydroalkylation of Unactivated Alkenes Enabled by “Co–H” Catalysis. Org Lett 2020; 22:4333-4338. [DOI: 10.1021/acs.orglett.0c01365] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Dandan Yang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Meng-Hui Li
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Xiao-Ju Si
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - He Zhang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jun-Long Niu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Mao-Ping Song
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| |
Collapse
|