1
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Wang SH, Wei SQ, Zhang Y, Zhang XM, Zhang SY, Dai KL, Tu YQ, Lu K, Ding TM. Atroposelective synthesis of biaxial bridged eight-membered terphenyls via a Co/SPDO-catalyzed aerobic oxidative coupling/desymmetrization of phenols. Nat Commun 2024; 15:4591. [PMID: 38816373 PMCID: PMC11139896 DOI: 10.1038/s41467-024-48858-1] [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: 07/18/2023] [Accepted: 05/13/2024] [Indexed: 06/01/2024] Open
Abstract
Bridged chiral biaryls are axially chiral compounds with a medium-sized ring connecting the two arenes. Compared with plentiful methods for the enantioselective synthesis of biaryl compounds, synthetic approaches for this subclass of bridged atropisomers are limited. Here we show an atroposelective synthesis of 1,3-diaxial bridged eight-membered terphenyl atropisomers through an Co/SPDO (spirocyclic pyrrolidine oxazoline)-catalyzed aerobic oxidative coupling/desymmetrization reaction of prochiral phenols. This catalytic desymmetric process is enabled by combination of an earth-abundant Co(OAc)2 and a unique SPDO ligand in the presence of DABCO (1,4-diaza[2.2.2]bicyclooctane). An array of diaxial bridged terphenyls embedded in an azocane can be accessed in high yields (up to 99%) with excellent enantio- (>99% ee) and diastereoselectivities (>20:1 dr).
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Affiliation(s)
- Shuang-Hu Wang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shi-Qiang Wei
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Ye Zhang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xiao-Ming Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Shu-Yu Zhang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Kun-Long Dai
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yong-Qiang Tu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China.
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China.
| | - Ka Lu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Tong-Mei Ding
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
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2
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Du Y, Li Q, Wang T, Wang YQ. Enantioselective Synthesis of Biphenyl-Bridged ϵ-Sultams by Organocatalytic Mannich Reactions of Cyclic N-Sulfonylimines with Unactivated Ketones. Chemistry 2024; 30:e202302904. [PMID: 37936501 DOI: 10.1002/chem.202302904] [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: 09/06/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/09/2023]
Abstract
A highly enantioselective Mannich reaction of biphenyl-bridged seven-membered cyclic N-sulfonylimines with methyl alkyl ketones is disclosed in this study. The reaction was performed under organocatalysis by using a quinine-derived primary amine as the catalyst in combination with a Brønsted acid as the co-catalyst. High yields (up to 89 %) and excellent enantioselectivities (up to 97 % ee) were observed. For methyl alkyl ketones containing a larger alkyl substituent, specific regioselective addition to the C=N bond is favored at the methyl group. On the contrary, ketones containing a smaller alkyl substituent or hydroxyacetone substrates gave major syn selective Mannich products at the methylene group.
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Affiliation(s)
- Ying Du
- Key Laboratory of Natural Medicine and, Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Qian Li
- Key Laboratory of Natural Medicine and, Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Tao Wang
- Key Laboratory of Natural Medicine and, Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - You-Qing Wang
- Key Laboratory of Natural Medicine and, Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
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3
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Zhang HH, Li TZ, Liu SJ, Shi F. Catalytic Asymmetric Synthesis of Atropisomers Bearing Multiple Chiral Elements: An Emerging Field. Angew Chem Int Ed Engl 2024; 63:e202311053. [PMID: 37917574 DOI: 10.1002/anie.202311053] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 10/09/2023] [Accepted: 11/02/2023] [Indexed: 11/04/2023]
Abstract
With the rapid development of asymmetric catalysis, the demand for the enantioselective synthesis of complex and diverse molecules with different chiral elements is increasing. Owing to the unique features of atropisomerism, the catalytic asymmetric synthesis of atropisomers has attracted a considerable interest from the chemical science community. In particular, introducing additional chiral elements, such as carbon centered chirality, heteroatomic chirality, planar chirality, and helical chirality, into atropisomers provides an opportunity to incorporate new properties into axially chiral compounds, thus expanding the potential applications of atropisomers. Thus, it is important to perform catalytic asymmetric transformations to synthesize atropisomers bearing multiple chiral elements. In spite of challenges in such transformations, in recent years, chemists have devised powerful strategies under asymmetric organocatalysis or metal catalysis, synthesizing a wide range of enantioenriched atropisomers bearing multiple chiral elements. Therefore, the catalytic asymmetric synthesis of atropisomers bearing multiple chiral elements has become an emerging field. This review summarizes the rapid progress in this field and indicates challenges, thereby promoting this field to a new horizon.
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Affiliation(s)
- Hong-Hao Zhang
- School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China
| | - Tian-Zhen Li
- School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China
| | - Si-Jia Liu
- School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China
| | - Feng Shi
- School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, China
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4
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Kotwal N, Tamanna, Changotra A, Chauhan P. Organocatalytic Asymmetric Synthesis of Carbo- and Oxacyclic Seven-Membered Bridged Biaryls via Nucleophile-Dependent Switchable Domino Processes. Org Lett 2023; 25:7523-7528. [PMID: 37802100 DOI: 10.1021/acs.orglett.3c02832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/08/2023]
Abstract
We disclose herein a highly diastereo- and enantioselective divergent synthesis of seven-membered biaryl-bridged carbo- and oxacyclic frameworks by utilizing the catalytic ability of bifunctional hydrogen-bonding squaramide organocatalysts. Starting with the same biaryl substrate bearing two distinct acceptor sites and by choosing soft or hard nucleophiles, we readily accessed the dibenzocycloheptanes or 5,7-dihydrodibenzo[c,e]oxepines bearing multiple elements of chirality via a domino 1,4/1,2-addition or 1,2/oxa-Michael addition sequence, respectively.
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Affiliation(s)
- Namrata Kotwal
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu 181221, Jammu and Kashmir, India
| | - Tamanna
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu 181221, Jammu and Kashmir, India
| | - Avtar Changotra
- Department of Chemistry, Cluster University of Jammu, Canal Road, Jammu 180001, Jammu and Kashmir, India
| | - Pankaj Chauhan
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu 181221, Jammu and Kashmir, India
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5
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Zhou Y, Guo S, Huang Q, Lang Q, Chen GQ, Zhang X. Facile access to chiral γ-butyrolactones via rhodium-catalysed asymmetric hydrogenation of γ-butenolides and γ-hydroxybutenolides. Chem Sci 2023; 14:4888-4892. [PMID: 37181773 PMCID: PMC10171041 DOI: 10.1039/d3sc00491k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/13/2023] [Indexed: 05/16/2023] Open
Abstract
The highly efficient Rh/ZhaoPhos-catalysed asymmetric hydrogenation of γ-butenolides and γ-hydroxybutenolides was successfully developed. This protocol provides an efficient and practical approach to the synthesis of various chiral γ-butyrolactones, which are synthetically valuable building blocks of diverse natural products and therapeutic substances, with excellent results (up to >99% conversion and 99% ee). Further follow-up transformations have been revealed to accomplish creative and efficient synthetic routes for several enantiomerically enriched drugs via this catalytic methodology.
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Affiliation(s)
- Yuxuan Zhou
- Shenzhen Grubbs Institute, Department of Chemistry, and Medi-Pingshan, Southern University of Science and Technology Shenzhen 518000 People's Republic of China
| | - Siyuan Guo
- Shenzhen Grubbs Institute, Department of Chemistry, and Medi-Pingshan, Southern University of Science and Technology Shenzhen 518000 People's Republic of China
| | - Qiyuan Huang
- Shenzhen Grubbs Institute, Department of Chemistry, and Medi-Pingshan, Southern University of Science and Technology Shenzhen 518000 People's Republic of China
| | - Qiwei Lang
- Shenzhen Grubbs Institute, Department of Chemistry, and Medi-Pingshan, Southern University of Science and Technology Shenzhen 518000 People's Republic of China
| | - Gen-Qiang Chen
- Shenzhen Grubbs Institute, Department of Chemistry, and Medi-Pingshan, Southern University of Science and Technology Shenzhen 518000 People's Republic of China
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology Shenzhen 518000 People's Republic of China
| | - Xumu Zhang
- Shenzhen Grubbs Institute, Department of Chemistry, and Medi-Pingshan, Southern University of Science and Technology Shenzhen 518000 People's Republic of China
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6
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Ma Z, Sun L, Zhou JS. Catalytic enantioselective alkenylation-heteroarylation of olefins: stereoselective syntheses of 5-7 membered azacycles and oxacycles. Chem Sci 2023; 14:3010-3017. [PMID: 36937582 PMCID: PMC10016361 DOI: 10.1039/d2sc07117g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 02/16/2023] [Indexed: 02/19/2023] Open
Abstract
Catalytic enantioselective domino alkenylation-heteroarylation of nonconjugated iododienes proceeded with excellent stereoselectivity and broad scope of substrates. The reaction enables stereoselective syntheses of substituted azacycles such as piperidine, pyrrolidine azepine and dihydropyrans carrying new quaternary stereocenters. Mechanistically, C-H bonds of heterocycles were activated by lithium alkoxides via reversible deprotonation, rather than conventional palladium(ii)-assisted metalation processes. Many types of heteroarenes can be used, including not only azoles (such as thiazoles, oxazoles, imidazoles and oxadiazoles), but also nonazoles (thiophene, furan and azine N-oxides).
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Affiliation(s)
- Zhaoming Ma
- State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School Room F312, 2199 Lishui Road, Nanshan District Shenzhen 518055 China
| | - Lantian Sun
- Department of Chemistry, Hong Kong Baptist University 224 Waterloo Road, Kowloon Tong Hong Kong China
| | - Jianrong Steve Zhou
- State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School Room F312, 2199 Lishui Road, Nanshan District Shenzhen 518055 China
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7
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Fan J, Wang Y, Hu X, Liu Y, Che CM. Iron porphyrin-catalysed C(sp 3)–H amination with alkyl azides for the synthesis of complex nitrogen-containing compounds. Org Chem Front 2023. [DOI: 10.1039/d2qo01972h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
With the readily prepared iron porphyrin complex as a catalyst and starting with alkyl azides, a panel of nitrogen-containing skeletons representing the families of natural alkaloids and bioactive compounds could be prepared in good yields.
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Affiliation(s)
- Jianqiang Fan
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, P. R. China
| | - Ye Wang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, P. R. China
| | - Xuefu Hu
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, P. R. China
| | - Yungen Liu
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, P. R. China
| | - Chi-Ming Che
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, P. R. China
- State Key Laboratory of Synthetic Chemistry, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
- HKU Shenzhen Institute of Research and Innovation, Shenzhen, Guangdong 518057, P. R. China
- Laboratory for Synthetic Chemistry and Chemical Biology Limited, Units 1503-1511, 15/F, Building 17W, Hong Kong Science Park, New Territories, Hong Kong, China
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8
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Kotwal N, Tamanna, Chauhan P. Catalytic asymmetric synthesis of medium-sized bridged biaryls. Chem Commun (Camb) 2022; 58:11031-11044. [PMID: 36124624 DOI: 10.1039/d2cc04000j] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Despite the persistent presence of medium-sized (seven- to nine-membered) scaffolds in natural products and biologically active molecules, their asymmetric syntheses have always been considered a formidable task; therefore, they have remained underdeveloped when compared to the enantioselective synthesis of five- and six-membered ring scaffolds. One important class of such medium-sized ring frameworks includes seven- to nine-membered biaryl bridged carbo- and heterocycles. These medium-ring-sized biaryl frameworks possess more configurational stability than the related smaller ring structures and are common features of valuable natural products, bioactive compounds, chiral catalysts, and molecular motors. Due to these exciting properties and broad applications, over the last few years, the catalytic enantioselective synthesis of medium-sized bridged biaryls has seen an upsurge. This highlight article describes the development of organocatalysed and transition-metal catalysed transformations for procuring seven-, eight-, and nine-membered bridged biaryls bearing a chiral axis/one or more asymmetric carbon centres.
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Affiliation(s)
- Namrata Kotwal
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu, 181221 J&K, India.
| | - Tamanna
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu, 181221 J&K, India.
| | - Pankaj Chauhan
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu, 181221 J&K, India.
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9
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Liu Y, Wang L, Li Y, Ma B, Chen GQ, Zhang X. Highly efficient synthesis of chiral β-amino phosphine derivatives via direct asymmetric reductive amination with ammonium salts and H2. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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10
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Wu Z, Wang W, Guo H, Gao G, Huang H, Chang M. Iridium-catalyzed direct asymmetric reductive amination utilizing primary alkyl amines as the N-sources. Nat Commun 2022; 13:3344. [PMID: 35688909 PMCID: PMC9187633 DOI: 10.1038/s41467-022-31045-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 05/30/2022] [Indexed: 11/10/2022] Open
Abstract
Direct asymmetric reductive amination is one of the most efficient methods for the construction of chiral amines, in which the scope of the applicable amine coupling partners remains a significant challenge. In this study we describe primary alkyl amines effectively serve as the N-sources in direct asymmetric reductive amination catalyzed by the iridium precursor and sterically tunable chiral phosphoramidite ligands. The density functional theory studies of the reaction mechanism imply the alkyl amine substrates serve as a ligand of iridium strengthened by a (N)H-O(P) hydrogen-bonding attraction, and the hydride addition occurs via an outer-sphere transition state, in which the Cl-H H-bonding plays an important role. Through this concise procedure, cinacalcet, tecalcet, fendiline and many other related chiral amines have been synthesized in one single step with high yields and excellent enantioselectivity. Direct asymmetric reductive amination is one of the most efficient methods for obtaining chiral amines. Here the authors show how primary alkyl amines can undergo this transformation in the presence of an iridium catalyst with sterically tuneable chiral phosphoramidite ligands, achieving the synthesis of pharmaceutical compounds.
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Affiliation(s)
- Zitong Wu
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China.,College of Plant Protection, Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Wenji Wang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Haodong Guo
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Guorui Gao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, 88 Wenhuadong Road, Jinan, 250014, China
| | - Haizhou Huang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Mingxin Chang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, China. .,College of Plant Protection, Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
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11
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McFadden TP, Nwachukwu CI, Roberts AG. An amine template strategy to construct successive C-C bonds: synthesis of benzo[ h]quinolines by a deaminative ring contraction cascade. Org Biomol Chem 2022; 20:1379-1385. [PMID: 35084425 PMCID: PMC8957836 DOI: 10.1039/d1ob02245h] [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
We developed a convergent strategy to build, cyclize and excise nitrogen from tertiary amines for the synthesis of polyheterocyclic aromatics. Biaryl-linked azepine intermediates can undergo a deaminative ring contraction cascade reaction, excising nitrogen with the formation of an aromatic core. This strategy and deaminative ring contraction reaction are useful for the synthesis of benzo[h]quinolines.
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Affiliation(s)
- Timothy Patrick McFadden
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, USA.
| | | | - Andrew George Roberts
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, USA.
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12
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Organocatalytic cycloaddition of alkynylindoles with azonaphthalenes for atroposelective construction of indole-based biaryls. Nat Commun 2022; 13:632. [PMID: 35110529 PMCID: PMC8810779 DOI: 10.1038/s41467-022-28211-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 12/14/2021] [Indexed: 12/29/2022] Open
Abstract
The axially chiral indole-aryl motifs are present in natural products and biologically active compounds as well as in chiral ligands. Atroposelective indole formation is an efficient method to construct indole-based biaryls. We report herein the result of a chiral phosphoric acid catalyzed asymmetric cycloaddition of 3-alkynylindoles with azonaphthalenes. A class of indole-based biaryls were prepared efficiently with excellent yields and enantioselectivities (up to 98% yield, 99% ee). Control experiment and DFT calculations illustrate a possible mechanism in which the reaction proceeds via a dearomatization of indole to generate an allene-iminium intermediate, followed by an intramolecular aza-Michael addition. This approach provides a convergent synthetic strategy for enantioselective construction of axially chiral heterobiaryl backbones. There is great interest in methods for catalytic enantioselective construction of axially chiral compounds found in natural products. Here, the authors develop a cycloaddition strategy for atroposelective construction of indole-based biaryls via chiral phosphoric acid-catalysed cycloaddition.
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13
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Cabré A, Verdaguer X, Riera A. Recent Advances in the Enantioselective Synthesis of Chiral Amines via Transition Metal-Catalyzed Asymmetric Hydrogenation. Chem Rev 2022; 122:269-339. [PMID: 34677059 PMCID: PMC9998038 DOI: 10.1021/acs.chemrev.1c00496] [Citation(s) in RCA: 97] [Impact Index Per Article: 48.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Chiral amines are key structural motifs present in a wide variety of natural products, drugs, and other biologically active compounds. During the past decade, significant advances have been made with respect to the enantioselective synthesis of chiral amines, many of them based on catalytic asymmetric hydrogenation (AH). The present review covers the use of AH in the synthesis of chiral amines bearing a stereogenic center either in the α, β, or γ position with respect to the nitrogen atom, reported from 2010 to 2020. Therefore, we provide an overview of the recent advances in the AH of imines, enamides, enamines, allyl amines, and N-heteroaromatic compounds.
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Affiliation(s)
- Albert Cabré
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, Barcelona E-08028, Spain.,Departament de Química Inorgànica i Orgànica, Secció de Química Orgànica, Universitat de Barcelona, Martí i Franquès 1, Barcelona E-08028, Spain
| | - Xavier Verdaguer
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, Barcelona E-08028, Spain.,Departament de Química Inorgànica i Orgànica, Secció de Química Orgànica, Universitat de Barcelona, Martí i Franquès 1, Barcelona E-08028, Spain
| | - Antoni Riera
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, Barcelona E-08028, Spain.,Departament de Química Inorgànica i Orgànica, Secció de Química Orgànica, Universitat de Barcelona, Martí i Franquès 1, Barcelona E-08028, Spain
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14
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Yang WL, Shen JH, Zhao ZH, Wang Z, Deng WP. Stereoselective synthesis of functionalized azepines via gold and palladium relay catalysis. Org Chem Front 2022. [DOI: 10.1039/d2qo00646d] [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
We developed a cycloisomerization/asymmetric [4 + 3] cycloaddition cascade reaction via gold/palladium relay catalysis, furnishing enantioenriched furan-fused azepines efficiently.
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Affiliation(s)
- Wu-Lin Yang
- Shanghai Key Laboratory of Chemical Biology & School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jia-Huan Shen
- Shanghai Key Laboratory of Chemical Biology & School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Zeng-Hui Zhao
- Shanghai Key Laboratory of Chemical Biology & School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Zhongao Wang
- Shanghai Key Laboratory of Chemical Biology & School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wei-Ping Deng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China
- Shanghai Key Laboratory of Chemical Biology & School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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15
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Rodríguez-Salamanca P, Martín-de la Calle R, Rodríguez V, Merino P, Fernández R, Lassaletta JM, Hornillos V. Asymmetric synthesis of dibenzo[ b, d]azepines by Cu-catalyzed reductive or borylative cyclization. Chem Sci 2021; 12:15291-15297. [PMID: 34976349 PMCID: PMC8635211 DOI: 10.1039/d1sc04980a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 11/08/2021] [Indexed: 11/21/2022] Open
Abstract
A copper-catalyzed asymmetric intramolecular reductive cyclization for the synthesis of dibenzo[b,d]azepines is described. Use of 2'-vinyl-biaryl-2-imines as substrates and in situ formed [CuI/(Ph-BPE)] as the catalyst enables the synthesis of 7-membered bridged biarylamines containing both central and axial stereogenic elements in high yields (up to 98%) and with excellent diastereo- and enantioselectivities (>20 : 1 d.r., up to 99% ee). Moreover, the same catalyst was found to facilitate a related borylative cyclization to afford versatile boronic ester derivatives. Both reactions proceed under mild conditions (rt) and are applicable to a variety of substituted aromatic and heterocyclic derivatives.
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Affiliation(s)
| | | | - Verónica Rodríguez
- Departamento de Química Orgánica, Universidad de Sevilla C/Prof. García González, 1 41012 Sevilla Spain
| | - Pedro Merino
- Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Universidad de Zaragoza 50009 Zaragoza Spain
| | - Rosario Fernández
- Departamento de Química Orgánica, Universidad de Sevilla C/Prof. García González, 1 41012 Sevilla Spain
| | - José M Lassaletta
- Instituto Investigaciones Químicas (CSIC-US) C/Américo Vespucio, 49 41092 Sevilla Spain
| | - Valentín Hornillos
- Instituto Investigaciones Químicas (CSIC-US) C/Américo Vespucio, 49 41092 Sevilla Spain .,Departamento de Química Orgánica, Universidad de Sevilla C/Prof. García González, 1 41012 Sevilla Spain
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16
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Stereoselective construction of novel biaryl bridged seven-membered ring scaffolds via intramolecular [3 + 2] cycloaddition reactions. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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17
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Furukawa T, Yanagi T, Kaga A, Saito H, Yorimitsu H. Construction of 5
H
‐Dibenzo[
c
,
e
]azepine Framework from Dibenzothiophene Dioxides and
N
‐Benzylimines through S
N
Ar Reactions. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tomoki Furukawa
- Department of Chemistry Graduate School of Science Kyoto University Sakyo-ku, Kyoto 606-8502 Japan
| | - Tomoyuki Yanagi
- Department of Chemistry Graduate School of Science Kyoto University Sakyo-ku, Kyoto 606-8502 Japan
| | - Atsushi Kaga
- Department of Chemistry Graduate School of Science Kyoto University Sakyo-ku, Kyoto 606-8502 Japan
| | - Hayate Saito
- Department of Chemistry Graduate School of Science Kyoto University Sakyo-ku, Kyoto 606-8502 Japan
| | - Hideki Yorimitsu
- Department of Chemistry Graduate School of Science Kyoto University Sakyo-ku, Kyoto 606-8502 Japan
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18
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Reshi NUD, Saptal VB, Beller M, Bera JK. Recent Progress in Transition-Metal-Catalyzed Asymmetric Reductive Amination. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04208] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Noor U Din Reshi
- Department of Chemistry and Center for Environmental Science, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Vitthal B. Saptal
- Department of Chemistry and Center for Environmental Science, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Matthias Beller
- Leibniz-Institut fr Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Jitendra K. Bera
- Department of Chemistry and Center for Environmental Science, Indian Institute of Technology Kanpur, Kanpur, 208016, India
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19
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Auras S, Trapp O. Scorpio‐Ligand: Synthesis of Biphenyl‐Dihydroazepine Phosphoramidite Ligands for Asymmetric Hydrogenation. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Stefanie Auras
- Department of Chemistry Ludwig Maximilian University Munich Butenandtstr. 5–13 DE-81377 Munich Germany
| | - Oliver Trapp
- Department of Chemistry Ludwig Maximilian University Munich Butenandtstr. 5–13 DE-81377 Munich Germany
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20
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Hu K, Liu R, Zhou X. Sequential Addition of Amines to Nitrile and Carbon-Carbon Multiple Bond: A Route to 7-Amino-5 H-dibenzo[ c,e]azepines. Org Lett 2021; 23:6946-6950. [PMID: 34415175 DOI: 10.1021/acs.orglett.1c02540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A rare earth metal-catalyzed sequential inter- and intramolecular C-N bond formation of 2-nitrile-2'-alkenyl(alkynyl)biphenyls with amines has been developed, which provides a straightforward and efficient access to a range of new functional dibenzo[c,e]azepines. This represents the first examples of direct construction of seven-membered azaheterocycle from unsaturated nitriles and amines. Such transformations have the advantages of avoiding the use of additives, easily available starting materials, step- and high atom-economy, mild reaction conditions, and high selectivity.
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Affiliation(s)
- Kun Hu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
| | - Ruiting Liu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China
| | - Xigeng Zhou
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200438, China.,State Key Laboratory of Organometallic Chemistry, Shanghai 200032, China
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21
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Guo Y, Liu M, Zhu X, Zhu L, He C. Catalytic Asymmetric Synthesis of Silicon‐Stereogenic Dihydrodibenzosilines: Silicon Central‐to‐Axial Chirality Relay. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103748] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yonghong Guo
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Meng‐Meng Liu
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Xujiang Zhu
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Liru Zhu
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Chuan He
- Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology Shenzhen Guangdong 518055 China
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22
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Guo Y, Liu MM, Zhu X, Zhu L, He C. Catalytic Asymmetric Synthesis of Silicon-Stereogenic Dihydrodibenzosilines: Silicon Central-to-Axial Chirality Relay. Angew Chem Int Ed Engl 2021; 60:13887-13891. [PMID: 33830619 DOI: 10.1002/anie.202103748] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/06/2021] [Indexed: 12/17/2022]
Abstract
A Rh-catalyzed asymmetric synthesis of silicon-stereogenic dihydrodibenzosilines featuring axially chiral 6-membered bridged biaryls is demonstrated. In the presence of a RhI catalyst with a chiral diphosphine ligand, a wide range of dihydrodibenzosilines containing both silicon-central and axial chiralities are conveniently constructed in excellent enantioselectivities via dehydrogenative C(sp3 )-H silylation. Absolute configuration analysis by single-crystal X-ray structures revealed a novel silicon central-to-axial chirality relay phenomenon, which we believe will inspire further research in the field of asymmetric catalysis and chiroptical materials.
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Affiliation(s)
- Yonghong Guo
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Meng-Meng Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Xujiang Zhu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Liru Zhu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Chuan He
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
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23
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Kaur M, Garg S, Malhi DS, Sohal HS. A Review on Synthesis, Reactions and Biological Properties of Seven Membered Heterocyclic Compounds: Azepine, Azepane, Azepinone. CURR ORG CHEM 2021. [DOI: 10.2174/1385272825999210104222338] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Seven membered heterocyclic Azepine and its derivatives have great pharmacological
and therapeutic implications. In this review, the literature of the last fifty years has
been exploited for the synthesis, reaction, and biological properties of these seven-member
heterocyclic compounds. Most of the mechanisms involved the ring expansion of either five
or six-membered compounds using various methods such as thermally, photo-chemically, and
microwave irradiation. The systematically designed schemes involve the synthesis of different
derivatives of azepine, azepinone, azepane, etc., using similar moieties by various researchers.
However, there is much work yet to be done in the biological section, as it is not
explored and reported in the literature; therefore, N-containing seven-membered heterocycles
still have much scope for the researchers.
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Affiliation(s)
- Manvinder Kaur
- Department of Chemistry, Chandigarh University, Gharuan-140413, Mohali, Punjab, India
| | - Sonali Garg
- Department of Chemistry, Chandigarh University, Gharuan-140413, Mohali, Punjab, India
| | - Dharambeer S. Malhi
- Department of Chemistry, Chandigarh University, Gharuan-140413, Mohali, Punjab, India
| | - Harvinder S. Sohal
- Department of Chemistry, Chandigarh University, Gharuan-140413, Mohali, Punjab, India
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24
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Tian Y, Hu L, Wang YZ, Zhang X, Yin Q. Recent advances on transition-metal-catalysed asymmetric reductive amination. Org Chem Front 2021. [DOI: 10.1039/d1qo00300c] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review focuses on the recent progress of homogeneous transition-metal-catalysed asymmetric reductive amination of ketones with diverse nitrogen sources.
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Affiliation(s)
- Yingying Tian
- Medi-X Pingshan
- Southern University of Science and Technology
- Shenzhen 518000
- China
| | - Le'an Hu
- Medi-X Pingshan
- Southern University of Science and Technology
- Shenzhen 518000
- China
| | - Yuan-Zheng Wang
- Medi-X Pingshan
- Southern University of Science and Technology
- Shenzhen 518000
- China
| | - Xumu Zhang
- Medi-X Pingshan
- Southern University of Science and Technology
- Shenzhen 518000
- China
- Shenzhen Key Laboratory of Small Molecule Drug Discovery
| | - Qin Yin
- Medi-X Pingshan
- Southern University of Science and Technology
- Shenzhen 518000
- China
- Academy for Advanced Interdisciplinary Studies
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25
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Węglarz I, Michalak K, Mlynarski J. Zinc‐Catalyzed Asymmetric Hydrosilylation of Cyclic Imines: Synthesis of Chiral 2‐Aryl‐Substituted Pyrrolidines as Pharmaceutical Building Blocks. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001043] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Izabela Węglarz
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Karol Michalak
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Jacek Mlynarski
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
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26
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Zhao Q, Chen C, Wen J, Dong XQ, Zhang X. Noncovalent Interaction-Assisted Ferrocenyl Phosphine Ligands in Asymmetric Catalysis. Acc Chem Res 2020; 53:1905-1921. [PMID: 32852187 DOI: 10.1021/acs.accounts.0c00347] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Noncovalent interactions are ubiquitous in nature and are responsible for the precision control in enzyme catalysis via the cooperation of multiple active sites. Inspired by this principle, noncovalent interaction-assisted transition metal catalysis has emerged recently as a powerful tool and has attracted intense interest. However, it is still highly desirable to develop efficient and operationally convenient ligands along this line with new structural motifs. Based on the specific nature of hydrogen bonding and ion pairing interactions, we developed a series of noncovalent interaction-assisted chiral ferrocenyl phosphine ligands, including Zhaophos, Wudaphos, and miscellaneous SPO-Wudaphos. Due to the assistance of noncovalent interactions, this catalytic mode is capable of achieving transition metal catalyzed asymmetric hydrogenation and other transformations with remarkable improvement of reactivity and selectivity. In some specific challenging cases, this probably represents one of the most productive methods. Moreover, these ligands are easily prepared, air stable, and highly tunable, meeting the requirements of industrial application.In this Account, we give a concise review of recent advances in asymmetric catalysis. By means of hydrogen bonding interactions, Rh- and Ir-Zhaophos complexes exhibited excellent activities and enantioselectivities in asymmetric hydrogenation of a wide range of substrates: C═C bonds of substituted conjugate alkenes with neutral hydrogen bond acceptors, including nitro groups, carbonyl groups (ketones, esters, amides, maleinimides, and anhydrides), ethers, and sulfones; C═N bonds of substituted iminium salts with chloride as an anionic hydrogen bond acceptor, including N-H imines and cyclic imines; N-heteroaromatic compounds with HCl as an additive, including unprotected quinolines, isoquinolines, and indoles; carbocation of substituted oxocarbenium ions. By means of ion pairing interactions, Rh-Wudaphos complexes enabled the catalytic asymmetric hydrogenation of α-substituted unsaturated carboxylic acids, carboxy-directed α,α-disubstituted terminal olefins, and sodium α-arylethenylsulfonates. Rh-SPO-Wudaphos utilized both hydrogen bonding and ion pairing interactions in asymmetric hydrogenation of α-substituted unsaturated carboxylic acids and phosphonic acids. In addition, Zhaophos has achieved highly selective intramolecular reductive amination and inter- and intramolecular asymmetric decarboxylative allylation. Investigations into mechanism implied that noncovalent interactions were involved in the catalytic cycle and played a critical role for both high reactivity and selectivity. Notably, a rare ionic hydrogenation pathway has been proposed in some cases. Furthermore, these catalytic systems have been used in the gram-scale synthesis of natural products and pharmaceuticals.
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Affiliation(s)
- Qingyang Zhao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, P. R. China
| | - Caiyou Chen
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Jialin Wen
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518000, P.R. China
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518000, P.R. China
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences, Wuhan University, 430072 Wuhan, P.R. China
| | - Xumu Zhang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518000, P.R. China
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27
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Yang H, Chen J, Zhou L. Construction of Axially Chiral Compounds via Central-to-Axial Chirality Conversion. Chem Asian J 2020; 15:2939-2951. [PMID: 32755013 DOI: 10.1002/asia.202000681] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/02/2020] [Indexed: 11/10/2022]
Abstract
Central-to-axial chirality conversion represents a fascinating class of chemical processes consisting of the destruction of stereogenic centers and the simultaneous installation of axial chiral elements, which provides efficient methods for the preparation of axially chiral compounds. Using the strategy, a wide range of axially chiral compounds, including biaryls, heterobiaryls, aromatic amides, allenes and vinyl arenes, have been synthesized with high efficiency and excellent enantioselectivity. In addition, central-to-axial chirality conversion strategy has been applied to the synthesis of natural products. The strategy has undoubtedly become and will continue to be a hot research topic in the field of asymmetric catalysis and synthesis. In this minireview, we selected some examples to introduce the developments and trends in the central-to-axial chirality conversion strategy up to April 2020.
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Affiliation(s)
- Hui Yang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | - Jie Chen
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China
| | - Ling Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China
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28
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Zhang Y, Liu YQ, Hu L, Zhang X, Yin Q. Asymmetric Reductive Amination/Ring-Closing Cascade: Direct Synthesis of Enantioenriched Biaryl-Bridged NH Lactams. Org Lett 2020; 22:6479-6483. [PMID: 32806148 DOI: 10.1021/acs.orglett.0c02282] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report here a Ru-catalyzed enantioselective synthesis of biaryl-bridged NH lactams through asymmetric reductive amination and a spontaneous ring-closing cascade from keto esters and NH4OAc with H2 as reductant. The reaction features broad substrate generality and high enantioselectivities (up to >99% ee). To showcase the practical utility, a highly enantioselective synthesis of 5-ethylindolobenzazepinone C, a promising antimitotic agent, has been rapidly completed. Furthermore, the amide group in the products enables versatile elaborations through directed C-H functionalization.
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Affiliation(s)
- Yao Zhang
- Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China.,School of Innovation and Entrepreneurship, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yun-Qi Liu
- Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Le'an Hu
- Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xumu Zhang
- Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qin Yin
- Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China.,Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518000, China
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29
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Zhou M, Li K, Chen D, Xu R, Xu G, Tang W. Enantioselective Reductive Coupling of Imines Templated by Chiral Diboron. J Am Chem Soc 2020; 142:10337-10342. [PMID: 32459089 DOI: 10.1021/jacs.0c04558] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We herein report a general, practical, and highly efficient method for asymmetric synthesis of a wide range of chiral vicinal diamines via reductive coupling of imines templated by chiral diboron. The protocol features high enantioselectivity and stereospecificity, mild reaction conditions, simple operating procedures, use of readily available starting materials, and a broad substrate scope. The method signifies the generality of diboron-enabled [3,3]-sigmatropic rearrangement.
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Affiliation(s)
- Mingkang Zhou
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Kaidi Li
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Dongping Chen
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Ronghua Xu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Guangqing Xu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China.,NingBo Zejun Pharmaceutical Technology Co., Ltd, Hangzhou Bay New District, Ningbo 315336, China
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China.,School of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China.,NingBo Zejun Pharmaceutical Technology Co., Ltd, Hangzhou Bay New District, Ningbo 315336, China
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30
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Shi Y, Tan X, Gao S, Zhang Y, Wang J, Zhang X, Yin Q. Direct Synthesis of Chiral NH Lactams via Ru-Catalyzed Asymmetric Reductive Amination/Cyclization Cascade of Keto Acids/Esters. Org Lett 2020; 22:2707-2713. [DOI: 10.1021/acs.orglett.0c00669] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yongjie Shi
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Xuefeng Tan
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Shuang Gao
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yao Zhang
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jingxin Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xumu Zhang
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qin Yin
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518000, China
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31
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Barrios-Rivera J, Xu Y, Wills M, Vyas VK. A diversity of recently reported methodology for asymmetric imine reduction. Org Chem Front 2020. [DOI: 10.1039/d0qo00794c] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This review describes recent developments in enantioselective imine reduction, including related substrates in which a CN bond is the target for reduction, and in situ methods.
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Affiliation(s)
| | - Yingjian Xu
- GoldenKeys High-tech Materials Co
- Ltd
- Guian New Area
- China
| | - Martin Wills
- Department of Chemistry
- The University of Warwick
- Coventry
- UK
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32
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Yao X, Shao Y, Hu M, Zhang M, Li S, Xia Y, Cheng T, Chen J. Palladium‐Catalyzed Selective Synthesis of Dibenzo[
c
,
e
]azepin‐5‐ols and Benzo[
c
]pyrido[2,3‐
e
]azepin‐5‐ols. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900705] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xinrong Yao
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou 325035 People's Republic of China
| | - Yinlin Shao
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou 325035 People's Republic of China
| | - Maolin Hu
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou 325035 People's Republic of China
| | - Maosheng Zhang
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou 325035 People's Republic of China
| | - Shaotong Li
- Shanghai Institute of Materia MedicaChinese Academy of Sciences Shanghai 201203 People's Republic of China
| | - Yuanzhi Xia
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou 325035 People's Republic of China
| | - Tianxing Cheng
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou 325035 People's Republic of China
| | - Jiuxi Chen
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou 325035 People's Republic of China
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33
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Yao X, Shao Y, Hu M, Xia Y, Cheng T, Chen J. Palladium-Catalyzed Cascade Reaction of o-Cyanobiaryls with Arylboronic Acids: Synthesis of 5-Arylidene-7-aryl-5H-dibenzo[c,e]azepines. Org Lett 2019; 21:7697-7701. [DOI: 10.1021/acs.orglett.9b02351] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xinrong Yao
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Yinlin Shao
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Maolin Hu
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Yuanzhi Xia
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Tianxing Cheng
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Jiuxi Chen
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
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Zhang S, Chen F, He YM, Fan QH. Asymmetric Hydrogenation of Dibenzo[c,e]azepine Derivatives with Chiral Cationic Ruthenium Diamine Catalysts. Org Lett 2019; 21:5538-5541. [DOI: 10.1021/acs.orglett.9b01859] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shanshan Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Fei Chen
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yan-Mei He
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Qing-Hua Fan
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
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Hu YL, Wang Z, Yang H, Chen J, Wu ZB, Lei Y, Zhou L. Conversion of two stereocenters to one or two chiral axes: atroposelective synthesis of 2,3-diarylbenzoindoles. Chem Sci 2019; 10:6777-6784. [PMID: 31391898 PMCID: PMC6657404 DOI: 10.1039/c9sc00810a] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 05/09/2019] [Indexed: 12/13/2022] Open
Abstract
Central-to-axial chirality conversion provides efficient access to axially chiral compounds, and several examples regarding the conversion of one, two or four stereocenters to one axis have been reported.
Central-to-axial chirality conversion provides efficient access to axially chiral compounds, and several examples regarding the conversion of one, two or four stereocenters to one axis have been reported. Herein, we report the conversion of two stereocenters to one or two chiral axes for the first time. In this study, a new class of enantiomerically enriched 2,3-diarylbenzoindoles was efficiently synthesized using a chiral phosphoric acid-catalyzed [3 + 2] formal cycloaddition and a mild DDQ oxidation strategy. Moreover, a speculative model of the central-to-axial chirality conversion outcome was proposed based on preliminary mechanistic studies and DFT calculations. Potentially, using this strategy, useful chiral phosphine ligand can be synthesized smoothly (99% ee).
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Affiliation(s)
- Yu-Long Hu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education , Department of Chemistry & Materials Science , National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China .
| | - Zhe Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education , Department of Chemistry & Materials Science , National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China .
| | - Hui Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education , Department of Chemistry & Materials Science , National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China .
| | - Jie Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education , Department of Chemistry & Materials Science , National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China .
| | - Zi-Bo Wu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education , Department of Chemistry & Materials Science , National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China .
| | - Yibo Lei
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education , Department of Chemistry & Materials Science , National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China .
| | - Ling Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education , Department of Chemistry & Materials Science , National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China .
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