1
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Cai B, Cui Y, Zhou J, Wang YB, Yang L, Tan B, Wang JJ. Asymmetric Hydrophosphinylation of Alkynes: Facile Access to Axially Chiral Styrene-Phosphines. Angew Chem Int Ed Engl 2023; 62:e202215820. [PMID: 36424372 DOI: 10.1002/anie.202215820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/24/2022] [Accepted: 11/24/2022] [Indexed: 11/27/2022]
Abstract
A Cu/CPA co-catalytic system has been developed for achieving the direct hydrophosphinylation of alkynes with phosphine oxides in delivering novel axially chiral phosphorus-containing alkenes in high yields and excellent enantioselectivities (up to 99 % yield and 99 % ee). DFT calculations were performed to elucidate the reaction pathway and the origin of enantiocontrol. This streamlined and modular methodology establishes a new platform for the design and application of new axially chiral styrene-phosphine ligands.
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Affiliation(s)
- Baohua Cai
- Shenzhen Grubbs Institute, Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yuan Cui
- Shenzhen Grubbs Institute, Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jian Zhou
- Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Yong-Bin Wang
- Shenzhen Grubbs Institute, Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Limin Yang
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
| | - Bin Tan
- Shenzhen Grubbs Institute, Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jun Joelle Wang
- Shenzhen Grubbs Institute, Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China.,Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
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2
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Gou B, Tang Y, Lin Y, Yu L, Jian Q, Sun H, Chen J, Zhou L. Modular Construction of Heterobiaryl Atropisomers and Axially Chiral Styrenes via All‐Carbon Tetrasubstituted VQMs. Angew Chem Int Ed Engl 2022; 61:e202208174. [DOI: 10.1002/anie.202208174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Indexed: 02/06/2023]
Affiliation(s)
- Bo‐Bo Gou
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science National Demonstration Center for Experimental Chemistry Education Northwest University Xi'an 710127 P. R. China
| | - Yue Tang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science National Demonstration Center for Experimental Chemistry Education Northwest University Xi'an 710127 P. R. China
| | - Yan‐Hong Lin
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science National Demonstration Center for Experimental Chemistry Education Northwest University Xi'an 710127 P. R. China
| | - Le Yu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science National Demonstration Center for Experimental Chemistry Education Northwest University Xi'an 710127 P. R. China
| | - Qing‐Song Jian
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science National Demonstration Center for Experimental Chemistry Education Northwest University Xi'an 710127 P. R. China
| | - Huai‐Ri Sun
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College 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 of the Ministry of Education College 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 of the Ministry of Education College of Chemistry & Materials Science National Demonstration Center for Experimental Chemistry Education Northwest University Xi'an 710127 P. R. China
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3
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Gou BB, Tang Y, Lin YH, Yu L, Jian QS, Sun HR, Chen J, Zhou L. Modular Construction of Heterobiaryl Atropisomers and Axially Chiral Styrenes via All‐Carbon Tetrasubstituted VQMs. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bo-Bo Gou
- Northwest University College of Chemistry & Materials Science CHINA
| | - Yue Tang
- Northwest University College of Chemistry & Materials Science CHINA
| | - Yan-Hong Lin
- Northwest University College of Chemistry & Materials Science CHINA
| | - Le Yu
- Northwest University College of Chemistry & Materials Science CHINA
| | - Qing-Song Jian
- Northwest University College of Chemistry & Materials Science CHINA
| | - Huai-Ri Sun
- Northwest University College of Chemistry & Materials Science CHINA
| | - Jie Chen
- Northwest University College of Chemistry & Materials Science CHINA
| | - Ling Zhou
- Northwest University College of Chemistry & Materials Science 1 Xuefu Ave., Chang’an District 710127 Xi'an CHINA
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4
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Jia S, Tian Y, Li X, Wang P, Lan Y, Yan H. Atroposelective Construction of Nine-Membered Carbonate-Bridged Biaryls. Angew Chem Int Ed Engl 2022; 61:e202206501. [PMID: 35621411 DOI: 10.1002/anie.202206501] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Indexed: 12/27/2022]
Abstract
We herein demonstrated an efficient method for the atroposelective construction of nine-membered carbonate-bridged biaryls through vinylidene ortho-quinone methide (VQM) intermediates. Diverse products with desirable pharmacological features were synthesized in satisfying yields and good to excellent enantioselectivities. In subsequent bioassays, several agents showed considerable antiproliferative activity via the mitochondrial-related apoptosis mechanism. Further transformations produced more structural diversity and may inspire new ideas for developing functional molecules.
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Affiliation(s)
- Shiqi Jia
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, 100 Science Avenue, Zhengzhou, 450001, Henan, P. R. China
| | - Yuhong Tian
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Xin Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Pengfei Wang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Yu Lan
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, 100 Science Avenue, Zhengzhou, 450001, Henan, P. R. China.,School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
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5
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Jia S, Tian Y, Li X, Wang P, Lan Y, Yan H. Atroposelective Construction of Nine‐Membered Carbonate Bridged Biaryls. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shiqi Jia
- Zhengzhou University Green Catalysis Center 重庆大学虎溪校区药学院 zhengzhou CHINA
| | - Yuhong Tian
- Chongqing University School of Pharmaceutical Sciences Chongqing CHINA
| | - Xin Li
- Chongqing University School of Pharmaceutical Sciences CHINA
| | - Pengfei Wang
- Chongqing University School of Pharmaceutical Sciences CHINA
| | - Yu Lan
- Chongqing University School of Chemistry and Chemical Engineering CHINA
| | - Hailong Yan
- Chongqing University Innovative Drug Research Center No.55 Daxuecheng South Rd 401331 Chongqing CHINA
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6
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Liu H, Li K, Huang S, Yan H. An Isolable Vinylidene ortho-Quinone Methide: Synthesis, Structure and Reactivity. Angew Chem Int Ed Engl 2022; 61:e202117063. [PMID: 35171537 DOI: 10.1002/anie.202117063] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Indexed: 12/29/2022]
Abstract
Commonly, an elusive intermediate is generated from a precursor and then trapped and consumed in a reaction. Vinylidene ortho-quinone methides (VQMs) have been demonstrated as transient axially chiral intermediates in asymmetric catalysis due to their orthogonal π-bonds forming an allene motif. The current understanding of VQMs is primarily based on time-resolved absorption, trapping experiments and computational studies. Herein, we report the first isolation and comprehensive characterization of a VQM, including crystallographic analysis. The disturbed aromaticity of the VQM led to its high reactivity as an electrophile or a 4π-component capable of asymmetric dearomatization of an electron-deficient phenyl group. Notably, the VQM could be isolated in enantiomerically enriched form, and the subsequent transformation was stereospecific, indicating that the generation of the VQM was involved in the enantiodetermining step. This study paves the way for the direct application of VQMs as starting materials.
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Affiliation(s)
- Hong Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P.R. China
| | - Kai Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P.R. China
| | - Shengli Huang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P.R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P.R. China
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7
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Chen KW, Chen ZH, Yang S, Wu SF, Zhang YC, Shi F. Organocatalytic Atroposelective Synthesis of N-N Axially Chiral Indoles and Pyrroles by De Novo Ring Formation. Angew Chem Int Ed Engl 2022; 61:e202116829. [PMID: 35080808 DOI: 10.1002/anie.202116829] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Indexed: 12/16/2022]
Abstract
The first highly atroposelective construction of N-N axially chiral indole scaffolds was established via a new strategy of de novo ring formation. This strategy makes use of the organocatalytic asymmetric Paal-Knorr reaction of well-designed N-aminoindoles with 1,4-diketones, thus affording N-pyrrolylindoles in high yields and with excellent atroposelectivities (up to 98 % yield, 96 % ee). In addition, this strategy is applicable for the atroposelective synthesis of N-N axially chiral bispyrroles (up to 98 % yield, 97 % ee). More importantly, such N-N axially chiral heterocycles can be converted into chiral organocatalysts with applications in asymmetric catalysis, and some molecules display potent anticancer activity. This work not only provides a new strategy for the atroposelective synthesis of N-N axially chiral molecules but also offers new members of the N-N atropisomer family with promising applications in synthetic and medicinal chemistry.
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Affiliation(s)
- Ke-Wei Chen
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Zhi-Han Chen
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Shuang Yang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Shu-Fang Wu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Yu-Chen Zhang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Feng Shi
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
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8
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Liu H, Li K, Huang S, Yan H. An Isolable Vinylidene
ortho‐
Quinone Methide: Synthesis, Structure and Reactivity. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hong Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research Chemical Biology Research Center School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P.R. China
| | - Kai Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research Chemical Biology Research Center School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P.R. China
| | - Shengli Huang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research Chemical Biology Research Center School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P.R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research Chemical Biology Research Center School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P.R. China
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9
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Chen K, Chen Z, Yang S, Wu S, Zhang Y, Shi F. Organocatalytic Atroposelective Synthesis of N−N Axially Chiral Indoles and Pyrroles by De Novo Ring Formation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116829] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ke‐Wei Chen
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 China
| | - Zhi‐Han Chen
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 China
| | - Shuang Yang
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 China
| | - Shu‐Fang Wu
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 China
| | - Yu‐Chen Zhang
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 China
| | - Feng Shi
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 China
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10
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Liu S, Chen Z, Chen J, Ni S, Zhang Y, Shi F. Rational Design of Axially Chiral Styrene‐Based Organocatalysts and Their Application in Catalytic Asymmetric (2+4) Cyclizations. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Si‐Jia Liu
- School of Chemistry and Materials Science Key Laboratory of Green Synthetic Chemistry for Functional Materials of Jiangsu Province Jiangsu Normal University Xuzhou 221116 China
| | - Zhi‐Han Chen
- School of Chemistry and Materials Science Key Laboratory of Green Synthetic Chemistry for Functional Materials of Jiangsu Province Jiangsu Normal University Xuzhou 221116 China
| | - Jia‐Yi Chen
- Department of Chemistry Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province Shantou University Shantou 515063 China
| | - Shao‐Fei Ni
- Department of Chemistry Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province Shantou University Shantou 515063 China
| | - Yu‐Chen Zhang
- School of Chemistry and Materials Science Key Laboratory of Green Synthetic Chemistry for Functional Materials of Jiangsu Province Jiangsu Normal University Xuzhou 221116 China
| | - Feng Shi
- School of Chemistry and Materials Science Key Laboratory of Green Synthetic Chemistry for Functional Materials of Jiangsu Province Jiangsu Normal University Xuzhou 221116 China
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11
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Liu SJ, Chen ZH, Chen JY, Ni SF, Zhang YC, Shi F. Rational Design of Axially Chiral Styrene-Based Organocatalysts and Their Application in Catalytic Asymmetric (2+4) Cyclizations. Angew Chem Int Ed Engl 2021; 61:e202112226. [PMID: 34846087 DOI: 10.1002/anie.202112226] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Indexed: 12/13/2022]
Abstract
A new class of axially chiral styrene-based thiourea tertiary amine catalysts, which have unique characteristics such as an efficient synthetic route, multiple chiral elements, and multiple activating groups, has been rationally designed. These new chiral catalysts have proven to be efficient organocatalysts, enabling the chemo-, diastereo-, and enantioselective (2+4) cyclization of 2-benzothiazolimines with homophthalic anhydrides in good yields (up to 96 %) with excellent stereoselectivities (all >95:5 dr, up to 98 % ee). More importantly, theoretical calculations elucidated the important role of an axially chiral styrene moiety in controlling both the reactivity and enantioselectivity. This work not only represents the first design of styrene-based chiral thiourea tertiary amine catalysts and the first catalytic asymmetric (2+4) cyclization of 2-benzothiazolimines, but also gives an in-depth understanding of axially chiral styrene-based organocatalysts.
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Affiliation(s)
- Si-Jia Liu
- School of Chemistry and Materials Science, Key Laboratory of Green Synthetic Chemistry for Functional Materials of Jiangsu Province, Jiangsu Normal University, Xuzhou, 221116, China
| | - Zhi-Han Chen
- School of Chemistry and Materials Science, Key Laboratory of Green Synthetic Chemistry for Functional Materials of Jiangsu Province, Jiangsu Normal University, Xuzhou, 221116, China
| | - Jia-Yi Chen
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, China
| | - Shao-Fei Ni
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, 515063, China
| | - Yu-Chen Zhang
- School of Chemistry and Materials Science, Key Laboratory of Green Synthetic Chemistry for Functional Materials of Jiangsu Province, Jiangsu Normal University, Xuzhou, 221116, China
| | - Feng Shi
- School of Chemistry and Materials Science, Key Laboratory of Green Synthetic Chemistry for Functional Materials of Jiangsu Province, Jiangsu Normal University, Xuzhou, 221116, China
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12
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He X, Wang C, Wen Y, Wang Z, Qian S. Recent Advances in Catalytic Atroposelective Construction of Pentatomic Heterobiaryl Scaffolds. ChemCatChem 2021. [DOI: 10.1002/cctc.202100539] [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)
- Xiao‐Long He
- School of Food and Bioengineering Xihua University Chengdu 610039 P. R. China
| | - Cheng Wang
- School of Food and Bioengineering Xihua University Chengdu 610039 P. R. China
| | - You‐Wu Wen
- School of Food and Bioengineering Xihua University Chengdu 610039 P. R. China
| | - Zhouyu Wang
- School of Science Xihua University Chengdu 610039 P. R. China
| | - Shan Qian
- School of Food and Bioengineering Xihua University Chengdu 610039 P. R. China
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13
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Zhang C, Gao Y, Wang H, Zhou B, Ye S. Enantioselective Synthesis of Axially Chiral Benzothiophene/Benzofuran‐Fused Biaryls by N‐Heterocyclic Carbene Catalyzed Arene Formation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103415] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Chun‐Lin Zhang
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Yuan‐Yuan Gao
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Hai‐Ying Wang
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Bang‐An Zhou
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Song Ye
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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14
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Zhang CL, Gao YY, Wang HY, Zhou BA, Ye S. Enantioselective Synthesis of Axially Chiral Benzothiophene/Benzofuran-Fused Biaryls by N-Heterocyclic Carbene Catalyzed Arene Formation. Angew Chem Int Ed Engl 2021; 60:13918-13922. [PMID: 33851519 DOI: 10.1002/anie.202103415] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Indexed: 01/13/2023]
Abstract
Axially chiral biaryl scaffolds are prevalent in natural products, chiral ligands, and organocatalysts. However, N-heterocyclic carbene (NHC) catalyzed de novo construction of an aromatic ring with concomitant axial chirality induction for the synthesis of biaryl atropisomers is far less developed, and the efficient synthesis of axially chiral tetra-ortho-substituted biaryls remains an unsolved problem under NHC catalysis. Reported here is an NHC-catalyzed de novo synthesis of axially chiral benzothiophene/benzofuran-fused biaryls from enals and 2-benzyl-benzothiophene/benzofuran-3-carbaldehydes through a [2+4] annulation, decarboxylation, and oxidative aromatization cascade with central-to-axial chirality conversion. The developed method provides efficient and general access to novel axially chiral benzothiophene/benzofuran-fused biaryls in high enantioselectivities and works well for the synthesis of tetra-ortho-substituted biaryls.
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Affiliation(s)
- Chun-Lin Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Yuan-Yuan Gao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hai-Ying Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bang-An Zhou
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Song Ye
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
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15
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Zhao K, Yang S, Gong Q, Duan L, Gu Z. Diols Activation by Cu/Borinic Acids Synergistic Catalysis in Atroposelective Ring‐Opening of Cyclic Diaryliodoniums. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014127] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Kun Zhao
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Shan Yang
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Qi Gong
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Longhui Duan
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Zhenhua Gu
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
- Ocean College Minjiang University Fuzhou Fujian 350108 P. R. China
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16
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Zhao K, Yang S, Gong Q, Duan L, Gu Z. Diols Activation by Cu/Borinic Acids Synergistic Catalysis in Atroposelective Ring‐Opening of Cyclic Diaryliodoniums. Angew Chem Int Ed Engl 2021; 60:5788-5793. [DOI: 10.1002/anie.202014127] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Indexed: 12/17/2022]
Affiliation(s)
- Kun Zhao
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Shan Yang
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Qi Gong
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Longhui Duan
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Zhenhua Gu
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
- Ocean College Minjiang University Fuzhou Fujian 350108 P. R. China
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17
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Zhang L, Shen J, Wu S, Zhong G, Wang Y, Tan B. Design and Atroposelective Construction of IAN analogues by Organocatalytic Asymmetric Heteroannulation of Alkynes. Angew Chem Int Ed Engl 2020; 59:23077-23082. [DOI: 10.1002/anie.202010598] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/27/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Lei Zhang
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 311121 China
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
| | - Jiahua Shen
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 311121 China
| | - San Wu
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
| | - Guofu Zhong
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 311121 China
| | - Yong‐Bin Wang
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
| | - Bin Tan
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
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18
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Zhang L, Shen J, Wu S, Zhong G, Wang Y, Tan B. Design and Atroposelective Construction of IAN analogues by Organocatalytic Asymmetric Heteroannulation of Alkynes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010598] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Lei Zhang
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 311121 China
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
| | - Jiahua Shen
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 311121 China
| | - San Wu
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
| | - Guofu Zhong
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 311121 China
| | - Yong‐Bin Wang
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
| | - Bin Tan
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
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19
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Xu T, Lin N, Hao WJ, Zhang J, Li MF, Tu SJ, Jiang B. Synthesis of polycyclic indoles via organocatalytic bicyclization of α-alkynylnaphthalen-2-ols with nitrones. Chem Commun (Camb) 2020; 56:11406-11409. [PMID: 32853304 DOI: 10.1039/d0cc05027j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A new organocatalytic bicyclization of α-alkynylnaphthalen-2-ols with nitrones was first reported, leading to the convergent synthesis of polycyclic indoles with substantial substitution diversity in generally good yields through scission of the N-O bond of nitrones via [3,3]-sigmatropic rearrangement. This transformation showcases the use of a quinine catalyst in a complicated cascade system that has been shown to effectively construct polycyclic heterocycles via alkyne difunctionalization.
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Affiliation(s)
- Ting Xu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
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20
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Li T, Liu S, Tan W, Shi F. Catalytic Asymmetric Construction of Axially Chiral Indole‐Based Frameworks: An Emerging Area. Chemistry 2020; 26:15779-15792. [DOI: 10.1002/chem.202001397] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/27/2020] [Indexed: 01/28/2023]
Affiliation(s)
- Tian‐Zhen Li
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Si‐Jia Liu
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Wei Tan
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Feng Shi
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
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21
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Zhang X, Zhao K, Li N, Yu J, Gong L, Gu Z. Atroposelective Ring Opening of Cyclic Diaryliodonium Salts with Bulky Anilines Controlled by a Chiral Cobalt(III) Anion. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008431] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xue Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Kun Zhao
- Hefei National Laboratory for Physical Sciences at the Microscale Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Na Li
- Hefei National Laboratory for Physical Sciences at the Microscale Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Jie Yu
- Department of Applied Chemistry Anhui Agricultural University Hefei Anhui 230026 P. R. China
| | - Liu‐Zhu Gong
- Hefei National Laboratory for Physical Sciences at the Microscale Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Zhenhua Gu
- Hefei National Laboratory for Physical Sciences at the Microscale Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
- Ocean College Minjiang University Fuzhou Fujian 350108 P. R. China
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22
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Zhang X, Zhao K, Li N, Yu J, Gong L, Gu Z. Atroposelective Ring Opening of Cyclic Diaryliodonium Salts with Bulky Anilines Controlled by a Chiral Cobalt(III) Anion. Angew Chem Int Ed Engl 2020; 59:19899-19904. [DOI: 10.1002/anie.202008431] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/27/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Xue Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Kun Zhao
- Hefei National Laboratory for Physical Sciences at the Microscale Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Na Li
- Hefei National Laboratory for Physical Sciences at the Microscale Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Jie Yu
- Department of Applied Chemistry Anhui Agricultural University Hefei Anhui 230026 P. R. China
| | - Liu‐Zhu Gong
- Hefei National Laboratory for Physical Sciences at the Microscale Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Zhenhua Gu
- Hefei National Laboratory for Physical Sciences at the Microscale Department of Chemistry Center for Excellence in Molecular Synthesis University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
- Ocean College Minjiang University Fuzhou Fujian 350108 P. R. China
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23
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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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24
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Bao X, Rodriguez J, Bonne D. Enantioselective Synthesis of Atropisomers with Multiple Stereogenic Axes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002518] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Xiaoze Bao
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 China
| | - Jean Rodriguez
- Aix Marseille Université CNRS Centrale Marseille, iSm2 Marseille France
| | - Damien Bonne
- Aix Marseille Université CNRS Centrale Marseille, iSm2 Marseille France
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25
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Bao X, Rodriguez J, Bonne D. Enantioselective Synthesis of Atropisomers with Multiple Stereogenic Axes. Angew Chem Int Ed Engl 2020; 59:12623-12634. [DOI: 10.1002/anie.202002518] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Indexed: 12/23/2022]
Affiliation(s)
- Xiaoze Bao
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 China
| | - Jean Rodriguez
- Aix Marseille Université CNRS Centrale Marseille, iSm2 Marseille France
| | - Damien Bonne
- Aix Marseille Université CNRS Centrale Marseille, iSm2 Marseille France
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26
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Xu T, Chen K, Zhu HY, Hao WJ, Tu SJ, Jiang B. Yb(OTf)3-Catalyzed Alkyne–Carbonyl Metathesis–Oxa-Michael Addition Relay for Diastereoselective Synthesis of Functionalized Naphtho[2,1-b]furans. Org Lett 2020; 22:2414-2418. [DOI: 10.1021/acs.orglett.0c00613] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ting Xu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Ke Chen
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Hong-Yu Zhu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
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27
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Koshino S, Takikawa A, Ishida K, Taniguchi T, Monde K, Kwon E, Umemiya S, Hayashi Y. Inversion of the Axial Information during Oxidative Aromatization in the Synthesis of Axially Chiral Biaryls with Organocatalysis as a Key Step. Chemistry 2020; 26:4524-4530. [DOI: 10.1002/chem.201905814] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Seitaro Koshino
- Department of ChemistryGraduate School of ScienceTohoku University Sendai 980-8578 Japan
| | - Akira Takikawa
- Department of ChemistryGraduate School of ScienceTohoku University Sendai 980-8578 Japan
| | - Keiichi Ishida
- Department of ChemistryGraduate School of ScienceTohoku University Sendai 980-8578 Japan
| | - Tohru Taniguchi
- Frontier Research Center of Advanced Material andLife Science Faculty of Advanced Life ScienceHokkaido University Sapporo 060-0810 Japan
| | - Kenji Monde
- Frontier Research Center of Advanced Material andLife Science Faculty of Advanced Life ScienceHokkaido University Sapporo 060-0810 Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant MoleculesGraduate School of Science Sendai 980-8578 Japan
| | - Shigenobu Umemiya
- Department of ChemistryGraduate School of ScienceTohoku University Sendai 980-8578 Japan
| | - Yujiro Hayashi
- Department of ChemistryGraduate School of ScienceTohoku University Sendai 980-8578 Japan
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28
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Bisag GD, Pecorari D, Mazzanti A, Bernardi L, Fochi M, Bencivenni G, Bertuzzi G, Corti V. Central‐to‐Axial Chirality Conversion Approach Designed on Organocatalytic Enantioselective Povarov Cycloadditions: First Access to Configurationally Stable Indole–Quinoline Atropisomers. Chemistry 2019; 25:15694-15701. [DOI: 10.1002/chem.201904213] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Giorgiana Denisa Bisag
- Department of Industrial Chemistry “Toso Montanari”Alma Mater Studiorum–University of Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Daniel Pecorari
- Department of Industrial Chemistry “Toso Montanari”Alma Mater Studiorum–University of Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Andrea Mazzanti
- Department of Industrial Chemistry “Toso Montanari”Alma Mater Studiorum–University of Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Luca Bernardi
- Department of Industrial Chemistry “Toso Montanari”Alma Mater Studiorum–University of Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Mariafrancesca Fochi
- Department of Industrial Chemistry “Toso Montanari”Alma Mater Studiorum–University of Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Giorgio Bencivenni
- Department of Industrial Chemistry “Toso Montanari”Alma Mater Studiorum–University of Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Giulio Bertuzzi
- Department of Industrial Chemistry “Toso Montanari”Alma Mater Studiorum–University of Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Vasco Corti
- Department of Industrial Chemistry “Toso Montanari”Alma Mater Studiorum–University of Bologna Viale Risorgimento 4 40136 Bologna Italy
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29
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Zhang TS, Yang L, Cai PJ, Tu SJ, Jiang B. Silver-Catalyzed Nitration/Annulation of α-Alkynyl Arylols toward 3-Nitrated Benzofurans. Chem Asian J 2019; 14:4383-4388. [PMID: 31777196 DOI: 10.1002/asia.201901400] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 11/03/2019] [Indexed: 12/28/2022]
Abstract
A silver-catalyzed nitration/annulation of α-alkynyl arylols is reported by using tert-butyl nitrite (TBN) as a NO2 radical precursor, from which a set of 3-nitrated benzofurans were synthesized with moderate to good yields. This transformation initiated by an in situ generated NO2 radical proceeds efficiently under mild and neutral redox conditions, which provides a new pathway toward the 3-nitrobenzofuran framework via catalytic difunctionalization of internal alkynes.
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Affiliation(s)
- Tian-Shu Zhang
- School of Chemical Engineering&Technology, China University of Mining and Technology, Xuzhou, 221116, P. R. China
| | - Lei Yang
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Pei-Jun Cai
- School of Chemical Engineering&Technology, China University of Mining and Technology, Xuzhou, 221116, P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China
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30
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Xu K, Li W, Zhu S, Zhu T. Atroposelective Arene Formation by Carbene‐Catalyzed Formal [4+2] Cycloaddition. Angew Chem Int Ed Engl 2019; 58:17625-17630. [DOI: 10.1002/anie.201910049] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/23/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Ke Xu
- School of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Wenchang Li
- School of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Shaoheng Zhu
- School of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Tingshun Zhu
- School of ChemistrySun Yat-Sen University Guangzhou 510275 China
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31
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Peng L, Li K, Xie C, Li S, Xu D, Qin W, Yan H. Organocatalytic Asymmetric Annulation of
ortho
‐Alkynylanilines: Synthesis of Axially Chiral Naphthyl‐C2‐indoles. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908961] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Lei Peng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Kai Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Chuandong Xie
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Shan Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Da Xu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Wenling Qin
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
- Key Laboratory of Biorheological Science and TechnologyMinistry of EducationCollege of BioengineeringChongqing University Chongqing 400044 China
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32
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Peng L, Li K, Xie C, Li S, Xu D, Qin W, Yan H. Organocatalytic Asymmetric Annulation of
ortho
‐Alkynylanilines: Synthesis of Axially Chiral Naphthyl‐C2‐indoles. Angew Chem Int Ed Engl 2019; 58:17199-17204. [DOI: 10.1002/anie.201908961] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/27/2019] [Indexed: 12/23/2022]
Affiliation(s)
- Lei Peng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Kai Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Chuandong Xie
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Shan Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Da Xu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Wenling Qin
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
- Key Laboratory of Biorheological Science and TechnologyMinistry of EducationCollege of BioengineeringChongqing University Chongqing 400044 China
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33
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Jia S, Li S, Liu Y, Qin W, Yan H. Enantioselective Control of Both Helical and Axial Stereogenic Elements though an Organocatalytic Approach. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909214] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Shiqi Jia
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Shan Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Yidong Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Wenling Qin
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
- Key Laboratory of Biorheological Science and TechnologyMinistry of Education, College of BioengineeringChongqing University Chongqing 400044 P. R. China
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34
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Jia S, Li S, Liu Y, Qin W, Yan H. Enantioselective Control of Both Helical and Axial Stereogenic Elements though an Organocatalytic Approach. Angew Chem Int Ed Engl 2019; 58:18496-18501. [PMID: 31608559 DOI: 10.1002/anie.201909214] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/08/2019] [Indexed: 12/22/2022]
Abstract
A highly diastereo- and enantio-selective method for the asymmetric synthesis of molecules containing helicenes and stereogenic axes was developed based on organocatalysis. Various compounds bearing both helical and axial stereogenic elements were obtained in excellent enantioselectivities. The mechanism study revealed that the reaction proceeded through two stages: 1) The first cyclization produces a reaction intermediate containing a stereogenic axis. 2) The dynamic kinetic resolution of helix reaction intermediate following with cyclization generates a helix and another stereogenic axis.
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Affiliation(s)
- Shiqi Jia
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Shan Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Yidong Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Wenling Qin
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China.,Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, P. R. China
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35
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Xu K, Li W, Zhu S, Zhu T. Atroposelective Arene Formation by Carbene‐Catalyzed Formal [4+2] Cycloaddition. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910049] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ke Xu
- School of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Wenchang Li
- School of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Shaoheng Zhu
- School of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Tingshun Zhu
- School of ChemistrySun Yat-Sen University Guangzhou 510275 China
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36
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Jiang F, Chen K, Wu P, Zhang Y, Jiao Y, Shi F. A Strategy for Synthesizing Axially Chiral Naphthyl‐Indoles: Catalytic Asymmetric Addition Reactions of Racemic Substrates. Angew Chem Int Ed Engl 2019; 58:15104-15110. [DOI: 10.1002/anie.201908279] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/01/2019] [Indexed: 01/24/2023]
Affiliation(s)
- Fei Jiang
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Ke‐Wei Chen
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Ping Wu
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Yu‐Chen Zhang
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Yinchun Jiao
- School of Chemistry and Chemical Engineering Hunan University of Science and Technology Xiangtan 411201 P. R. China
| | - Feng Shi
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
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37
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Jiang F, Chen K, Wu P, Zhang Y, Jiao Y, Shi F. A Strategy for Synthesizing Axially Chiral Naphthyl‐Indoles: Catalytic Asymmetric Addition Reactions of Racemic Substrates. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908279] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Fei Jiang
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Ke‐Wei Chen
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Ping Wu
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Yu‐Chen Zhang
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Yinchun Jiao
- School of Chemistry and Chemical Engineering Hunan University of Science and Technology Xiangtan 411201 P. R. China
| | - Feng Shi
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
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38
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Shan C, Zhang T, Xiong Q, Yan H, Bai R, Lan Y. Hydrogen‐Bond‐Induced Chiral Axis Construction: Theoretical Study of Cinchonine–Thiourea‐Catalyzed Enantioselective Intramolecular Cycloaddition. Chem Asian J 2019; 14:2731-2736. [DOI: 10.1002/asia.201900624] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/10/2019] [Indexed: 12/23/2022]
Affiliation(s)
- Chunhui Shan
- Postdoctoral Station of Biomedical EngineeringChongqing University Chongqing 400030 P.R. China
| | - Tao Zhang
- School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing University Chongqing 400030 P.R. China
| | - Qin Xiong
- School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing University Chongqing 400030 P.R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug, ResearchSchool of Pharmaceutical SciencesChongqing University Chongqing 400030 P.R. China
| | - Ruopeng Bai
- School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing University Chongqing 400030 P.R. China
| | - Yu Lan
- School of Chemistry and Chemical EngineeringChongqing Key Laboratory of Theoretical and Computational ChemistryChongqing University Chongqing 400030 P.R. China
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou 450001 P.R. China
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39
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Ma C, Jiang F, Sheng F, Jiao Y, Mei G, Shi F. Design and Catalytic Asymmetric Construction of Axially Chiral 3,3′‐Bisindole Skeletons. Angew Chem Int Ed Engl 2019; 58:3014-3020. [DOI: 10.1002/anie.201811177] [Citation(s) in RCA: 198] [Impact Index Per Article: 39.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 11/12/2018] [Indexed: 01/13/2023]
Affiliation(s)
- Chun Ma
- School of Chemistry and Materials ScienceJiangsu Normal University Xuzhou 221116 P. R. China
| | - Fei Jiang
- School of Chemistry and Materials ScienceJiangsu Normal University Xuzhou 221116 P. R. China
| | - Feng‐Tao Sheng
- School of Chemistry and Materials ScienceJiangsu Normal University Xuzhou 221116 P. R. China
| | - Yinchun Jiao
- School of Chemistry and Chemical EngineeringHunan University of Science and Technology Xiangtan 411201 P. R. China
| | - Guang‐Jian Mei
- School of Chemistry and Materials ScienceJiangsu Normal University Xuzhou 221116 P. R. China
| | - Feng Shi
- School of Chemistry and Materials ScienceJiangsu Normal University Xuzhou 221116 P. R. China
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40
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Peng C, Kusakabe T, Kikkawa S, Mochida T, Azumaya I, Dhage YD, Takahashi K, Sasai H, Kato K. Asymmetric Cyclizative Dimerization of (
ortho
‐Alkynyl Phenyl) (Methoxymethyl) Sulfides with Palladium(II) Bisoxazoline Catalyst. Chemistry 2018; 25:733-737. [DOI: 10.1002/chem.201804779] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Cheng Peng
- Faculty of Pharmaceutical SciencesToho University 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Taichi Kusakabe
- Faculty of Pharmaceutical SciencesToho University 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Shoko Kikkawa
- Faculty of Pharmaceutical SciencesToho University 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Tomoyuki Mochida
- Department of ChemistryFaculty of SciencesKobe University Rokkodai, Nada Kobe 657-8501 Japan
| | - Isao Azumaya
- Faculty of Pharmaceutical SciencesToho University 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Yogesh Daulat Dhage
- Faculty of Pharmaceutical SciencesToho University 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Keisuke Takahashi
- Faculty of Pharmaceutical SciencesToho University 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Hiroaki Sasai
- The Institute of Scientific and Industrial Research (ISIR)Osaka University Mihogaoka Ibaraki-shi, Osaka 567-0047 Japan
| | - Keisuke Kato
- Faculty of Pharmaceutical SciencesToho University 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
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41
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Ma C, Jiang F, Sheng F, Jiao Y, Mei G, Shi F. Design and Catalytic Asymmetric Construction of Axially Chiral 3,3′‐Bisindole Skeletons. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811177] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Chun Ma
- School of Chemistry and Materials ScienceJiangsu Normal University Xuzhou 221116 P. R. China
| | - Fei Jiang
- School of Chemistry and Materials ScienceJiangsu Normal University Xuzhou 221116 P. R. China
| | - Feng‐Tao Sheng
- School of Chemistry and Materials ScienceJiangsu Normal University Xuzhou 221116 P. R. China
| | - Yinchun Jiao
- School of Chemistry and Chemical EngineeringHunan University of Science and Technology Xiangtan 411201 P. R. China
| | - Guang‐Jian Mei
- School of Chemistry and Materials ScienceJiangsu Normal University Xuzhou 221116 P. R. China
| | - Feng Shi
- School of Chemistry and Materials ScienceJiangsu Normal University Xuzhou 221116 P. R. China
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42
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Peng L, Xu D, Yang X, Tang J, Feng X, Zhang SL, Yan H. Organocatalytic Asymmetric One-Step Desymmetrizing Dearomatization Reaction of Indoles: Development and Bioactivity Evaluation. Angew Chem Int Ed Engl 2018; 58:216-220. [DOI: 10.1002/anie.201811437] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 11/07/2018] [Indexed: 12/23/2022]
Affiliation(s)
- Lei Peng
- Chongqing Key Laboratory of Natural Product Synthesis, and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Da Xu
- Chongqing Key Laboratory of Natural Product Synthesis, and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Xiaohong Yang
- Chongqing Key Laboratory of Natural Product Synthesis, and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Jiakun Tang
- Chongqing Key Laboratory of Natural Product Synthesis, and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Xuli Feng
- Chongqing Key Laboratory of Natural Product Synthesis, and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Shao-Lin Zhang
- Chongqing Key Laboratory of Natural Product Synthesis, and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis, and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
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43
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Peng L, Xu D, Yang X, Tang J, Feng X, Zhang SL, Yan H. Organocatalytic Asymmetric One-Step Desymmetrizing Dearomatization Reaction of Indoles: Development and Bioactivity Evaluation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811437] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Lei Peng
- Chongqing Key Laboratory of Natural Product Synthesis, and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Da Xu
- Chongqing Key Laboratory of Natural Product Synthesis, and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Xiaohong Yang
- Chongqing Key Laboratory of Natural Product Synthesis, and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Jiakun Tang
- Chongqing Key Laboratory of Natural Product Synthesis, and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Xuli Feng
- Chongqing Key Laboratory of Natural Product Synthesis, and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Shao-Lin Zhang
- Chongqing Key Laboratory of Natural Product Synthesis, and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis, and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
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