1
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Chen Y, Huang S, Wang T, Li J, Zhao Y, Zhou Q, Wei L, Yang X. Chiral Brønsted Acid-Catalyzed Kinetic Resolution of Sulfoximines for the Synthesis of Benzothiadiazine-1-Oxides. J Org Chem 2024. [PMID: 38788145 DOI: 10.1021/acs.joc.4c00623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2024]
Abstract
Benzothiadiazine-1-oxide scaffolds with S-stereogenic centers are prevalent in bioactive and pharmaceutical molecules. Reported works mainly focused on the metal-catalyzed asymmetric C-H amination/cyclization reaction for the synthesis of benzothiadiazine-1-oxides. Here, we reported a chiral phosphoric acid-catalyzed kinetic resolution of sulfoximines, providing chiral benzothiadiazine-1-oxides and recovered chiral sulfoximines with moderate to good enantioselectivities (s factors up to 36.6).
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Affiliation(s)
- Yuhang Chen
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine (Ministry of Educational of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
| | - Shihao Huang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine (Ministry of Educational of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
| | - Tianyi Wang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine (Ministry of Educational of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
| | - Jiaomeng Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine (Ministry of Educational of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
| | - Yi Zhao
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine (Ministry of Educational of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
| | - Qinglong Zhou
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine (Ministry of Educational of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
| | - Liwen Wei
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine (Ministry of Educational of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
| | - Xing Yang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine (Ministry of Educational of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
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2
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Eder J, Antonov AS, Tupikina EY, Gschwind RM. Chiral Diselenophosphoric Acids for Ion Pair Catalysis: A Novel Approach to Enhance Both Proton Donating and Proton Accepting Properties. Chemistry 2024:e202401793. [PMID: 38747423 DOI: 10.1002/chem.202401793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Indexed: 07/18/2024]
Abstract
The activation of poorly reactive substrates via strong chiral acids is a central topic in asymmetric ion pair catalysis these days. Despite highly successful scaffolds such as N-triflylphosphoramides, these catalysts either lack C2-symmetry or provide multiple H-bond acceptor sites, leading to lower ee values for certain reactions. We present BINOL-based diselenophosphoric acids (DSA) as an extremely promising alternative. Using an intertwined approach of synthesis and NMR studies, we developed a synthetic approach to DSA with up to 98 % NMR yield. The obtained acids provide both very high proton donor and proton acceptor properties, a bifunctionality, which is key to catalytic applications. Indeed, first reactivity test proved the much higher acidity of DSA and its ability to initiate Mukaiyama-Mannich reaction and protodesilylation of silyl ethers. Together with their C2-symmetry, the single donor and single acceptor situation, the decreased tendency of self-association, and the straightforward synthesis with potential 3,3'-substitution, the DSA provide all features ideal for the further development of ion pair catalysis.
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Affiliation(s)
- Johannes Eder
- Institute of Organic Chemistry, University of Regensburg, D-93053, Regensburg, Germany
| | - Alexander S Antonov
- Institute of Organic Chemistry, University of Regensburg, D-93053, Regensburg, Germany
| | - Elena Yu Tupikina
- Institute of Chemistry, St. Petersburg State University, 198504, St. Petersburg, Russian Federation
| | - Ruth M Gschwind
- Institute of Organic Chemistry, University of Regensburg, D-93053, Regensburg, Germany
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3
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Tang M, Yuan M, Hong S, Jiang Q, Gu H, Yang X. Kinetic Resolution of Sulfoximines via Asymmetric Organocatalyzed Formation of Benzothiadiazine-1-oxides. Org Lett 2024; 26:1914-1919. [PMID: 38420924 DOI: 10.1021/acs.orglett.4c00266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
A catalytic kinetic resolution of sulfoximines has been developed through chiral phosphoric acid-catalyzed intramolecular dehydrative cyclizations. A variety of racemic sulfoximines bearing an ortho-amidophenyl moiety underwent asymmetric dehydrative cyclizations using this method, yielding both the recovered sulfoximines and benzothiadiazine-1-oxide products with good to high enantioselectivities (with s-factor up to 61). The diverse derivatizations of the chiral products into a wide range of S-stereogenic center-containing S,N-heterocycles have demonstrated the value of this method.
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Affiliation(s)
- Mengyao Tang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Mengyao Yuan
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Shibin Hong
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Qianwen Jiang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Huanchao Gu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xiaoyu Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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4
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Li JH, Li XK, Feng J, Yao W, Zhang H, Lu CJ, Liu RR. Organocatalytic Enantioselective Synthesis of Seven-Membered Ring with Inherent Chirality. Angew Chem Int Ed Engl 2024; 63:e202319289. [PMID: 38185722 DOI: 10.1002/anie.202319289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/09/2024]
Abstract
Inherent chirality is used to describe chiral cyclic molecules devoid of central, axial, planar, or helical chirality and has tremendous applications in chiral recognition and enantioselective synthesis. Catalytic and divergent syntheses of inherently chiral molecules have attracted increasing interest from chemists. Herein, we report the enantioselective synthesis of inherently chiral tribenzocycloheptene derivatives via chiral phosphoric acid (CPA)-catalyzed condensation of cyclic ketones and hydroxylamines. This chemistry paves the way to accessing the less stable derivatives of 7-membered rings with inherent chirality. A series of chiral tribenzocycloheptene oxime ethers was synthesized in good yields (up to 97 %) with excellent enantioselectivities (up to 99 % ee).
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Affiliation(s)
- Jia-Hao Li
- College of Chemistry and Chemical Engineering, Qingdao University, NingXia Road 308#, Qingdao, 266071, China
| | - Xiao-Kai Li
- College of Chemistry and Chemical Engineering, Qingdao University, NingXia Road 308#, Qingdao, 266071, China
| | - Jia Feng
- College of Chemistry and Chemical Engineering, Qingdao University, NingXia Road 308#, Qingdao, 266071, China
| | - Wang Yao
- College of Chemistry and Chemical Engineering, Qingdao University, NingXia Road 308#, Qingdao, 266071, China
| | - Huan Zhang
- College of Chemistry and Chemical Engineering, Qingdao University, NingXia Road 308#, Qingdao, 266071, China
| | - Chuan-Jun Lu
- College of Chemistry and Chemical Engineering, Qingdao University, NingXia Road 308#, Qingdao, 266071, China
| | - Ren-Rong Liu
- College of Chemistry and Chemical Engineering, Qingdao University, NingXia Road 308#, Qingdao, 266071, China
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5
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Rizzo C, Pace A, Pibiri I, Buscemi S, Palumbo Piccionello A. From Conventional to Sustainable Catalytic Approaches for Heterocycles Synthesis. CHEMSUSCHEM 2023:e202301604. [PMID: 38140917 DOI: 10.1002/cssc.202301604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 12/24/2023]
Abstract
Synthesis of heterocyclic compounds is fundamental for all the research area in chemistry, from drug synthesis to material science. In this framework, catalysed synthetic methods are of great interest to effective reach such important building blocks. In this review, we will report on some selected examples from the last five years, of the major improvement in the field, focusing on the most important conventional catalytic systems, such as transition metals, organocatalysts, to more sustainable ones such as photocatalysts, iodine-catalysed reaction, electrochemical reactions and green innovative methods.
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Affiliation(s)
- Carla Rizzo
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, Italy, University of Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo
| | - Andrea Pace
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, Italy, University of Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo
| | - Ivana Pibiri
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, Italy, University of Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo
| | - Silvestre Buscemi
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, Italy, University of Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo
| | - Antonio Palumbo Piccionello
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, Italy, University of Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo
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6
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Li C, Xiang X, Zhang X, He ZL, Gu SX, Dong XQ. Iridium-Catalyzed Intramolecular Asymmetric Allylation of Vinyl Benzoxazinones for the Synthesis of Chiral 4 H-3,1-Benzoxazines via Kinetic Resolution. Org Lett 2023; 25:1172-1177. [PMID: 36779869 DOI: 10.1021/acs.orglett.3c00148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Chiral benzoxazinones and 4H-3,1-benzoxazines as important motifs are widely found in abundant pharmaceuticals and biological molecules. We herein successfully developed the first kinetic resolution (KR) process of racemic benzoxazinones through Ir-catalyzed asymmetric intramolecular allylation, furnishing a wide range of chiral benzoxazinones and 4H-3,1-benzoxazines with excellent results via outstanding KR performances (with the s factor up to 170). This protocol exhibited broad substrate scope generality and good functional group tolerance, and the chiral 4H-3,1-benzoxazine products could be readily transformed to other useful optically active heterocycles.
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Affiliation(s)
- Chenzong Li
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, Wuhan, Hubei 430072, People's Republic of China.,School of Chemical Engineering & Pharmacy, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, Hubei 430205, People's Republic of China
| | - Xun Xiang
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, Wuhan, Hubei 430072, People's Republic of China.,School of Chemical Engineering & Pharmacy, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, Hubei 430205, People's Republic of China
| | - Xianghe Zhang
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Zhao-Lin He
- School of Chemical Engineering & Pharmacy, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, Hubei 430205, People's Republic of China
| | - Shuang-Xi Gu
- School of Chemical Engineering & Pharmacy, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, Hubei 430205, People's Republic of China
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, Wuhan, Hubei 430072, People's Republic of China
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7
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Chen BH, Liu SJ, Zhao Q, Hou Q, Yuan JL, Zhan G, Yang QQ, Huang W. Palladium-catalyzed asymmetric [4+2] annulation of vinyl benzoxazinanones with pyrazolone 4,5-diones to access spirobenzoxazine frameworks. Chem Commun (Camb) 2023; 59:1233-1236. [PMID: 36632696 DOI: 10.1039/d2cc06621a] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Herein, a palladium-catalyzed general synthetic strategy to access an attractive and decorated set of chiral spiro derivatives of benzoxazine compounds is unveiled utilizing vinyl benzoxazinanones reacted with pyrazolone 4,5-diones, which extends the application of vinyl benzoxazinanones with ketones. This asymmetric catalytic [4+2] cycloaddition reaction demonstrates a broad substrate scope with functional group tolerance in yields of up to 76% and up to 96% ee. A facile scale-up and straightforward conversion to diversely substituted products verify the synthetic utility of this method.
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Affiliation(s)
- Ben-Hong Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Shuai-Jiang Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Qian Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Qiumeng Hou
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Jia-Li Yuan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Gu Zhan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Qian-Qian Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Wei Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
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8
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Lee D, Shintani R. Palladium-catalyzed synthesis of 4-sila-4 H-benzo[ d][1,3]oxazines by intramolecular Hiyama coupling. Chem Sci 2023; 14:4114-4119. [PMID: 37063809 PMCID: PMC10094166 DOI: 10.1039/d2sc06425a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 03/21/2023] [Indexed: 03/30/2023] Open
Abstract
A palladium-catalyzed synthesis of 4-sila-4H-benzo[d][1,3]oxazines, silicon-switched analogs of biologically relevant 4H-benzo[d][1,3]oxazines, was developed by the intramolecular Hiyama coupling of 3-amido-2-(arylsilyl)aryl triflates.
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Affiliation(s)
- Donghyeon Lee
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University Toyonaka Osaka 560-8531 Japan
| | - Ryo Shintani
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University Toyonaka Osaka 560-8531 Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University Suita Osaka 565-0871 Japan
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9
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Wan YB, Hu XP. Highly Enantioselective Iridium-Catalyzed Hydrogenation of o-Amidophenyl Ketones Enabled by 1,2-Diphenylethylenediamine-Derived P,N,N-Ligands with Tertiary Amine Terminus. Org Lett 2022; 24:5797-5801. [PMID: 35912453 DOI: 10.1021/acs.orglett.2c02316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A readily available and highly modular class of chiral P,N,N-ligands based on a structurally flexible nonchiral phosphine-amine framework with an optically active 1,2-diphenylethylenediamine unit bearing a tertiary amine terminus as the chiral source have been developed and successfully applied in the Ir-catalyzed asymmetric hydrogenation of o-amidophenyl ketones. These tridentate P,N,N-ligands exhibited excellent activity, enantioselectivity, and substrate tolerance, thus furnishing various optically active o-amidobenzhydrols in up to 99% yields and with >99% ee. The utility of this protocol has been proven by synthetically diverse product transformation and highly enantioselective production of a rice plant growth regulator, (S)-inabenfide.
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Affiliation(s)
- Yin-Bo Wan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiang-Ping Hu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
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10
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Yang M, Gao YL, Xie MS, Guo HM. ArPNO-catalyzed acylative kinetic resolution of tertiary alcohols: access to 3-hydroxy-3-substituted oxindoles. Org Biomol Chem 2022; 20:6351-6355. [PMID: 35894229 DOI: 10.1039/d2ob01205g] [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
Bifunctional chiral 4-aryl-pyridine-N-oxides (ArPNO) were reported for the acylative kinetic resolution of 3-hydroxy-3-substituted oxindoles, where the oxygen acts as the nucleophilic site. Using less sterically hindered acetic anhydride, both the recovered tertiary heterocyclic alcohols and the ester products exhibited good to excellent results with s-factors up to 167. Control experiments supported the dual activation manner, where the N-oxide group and N-H proton in ArPNO were crucial for high selectivity and enhanced catalytic reactivity. Compared with the extensively used chiral NHC, isochalcogenourea, and DMAP catalysts, we found that chiral ArPNO were also efficient organocatalysts in the kinetic resolution of tertiary alcohols.
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Affiliation(s)
- Min Yang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Yu-Lin Gao
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Ming-Sheng Xie
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Hai-Ming Guo
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
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11
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Cao RF, Yu L, Huo YX, Li Y, Xue XS, Chen ZM. Chiral Lewis Base Catalyzed Enantioselective Selenocyclization of 1,1-Disubstituted Alkenes: Asymmetric Synthesis of Selenium-Containing 4 H-3,1-Benzoxazines. Org Lett 2022; 24:4093-4098. [PMID: 35649184 DOI: 10.1021/acs.orglett.2c01731] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
An enantioselective selenocyclization of 1,1-disubstituted alkenes was achieved for the first time, which is enabled by a novel combination of a chiral BINAM-derived sulfide and an achiral Lewis acid. Various selenium-containing 4H-3,1-benzoxazines, which are widely present in a range of medicinally relevant molecules, were readily obtained in moderate to good yields and good to excellent enantioselectivities. A series of tetrasubstituted carbon stereocenters were facilely constructed.
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Affiliation(s)
- Ren-Fei Cao
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
| | - Lu Yu
- College of Chemistry, Nankai University, Tianjin 300071, P.R. China
| | - Yu-Xuan Huo
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
| | - Yao Li
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, P.R. China
| | - Xiao-Song Xue
- College of Chemistry, Nankai University, Tianjin 300071, P.R. China.,Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, P.R. China
| | - Zhi-Min Chen
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
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12
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Ding B, Xue Q, Cheng HG, Zhou Q, Jia S. Recent Advances in Catalytic Nonenzymatic Kinetic Resolution of Tertiary Alcohols. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1712-0912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
AbstractThe kinetic resolution (KR) of racemates is one of the most widely used approaches to access enantiomerically pure compounds. Over the past two decades, catalytic nonenzymatic KR has gained popularity in the field of asymmetric synthesis due to the rapid development of chiral catalysts and ligands in asymmetric catalysis. Chiral tertiary alcohols are prevalent in a variety of natural products, pharmaceuticals, and biologically active chiral compounds. The catalytic nonenzymatic KR of racemic tertiary alcohols is a straightforward strategy to access enantioenriched tertiary alcohols. This short review describes recent advances in catalytic nonenzymatic KR of tertiary alcohols, including organocatalysis and metal catalysis.1 Introduction2 Organocatalysis2.1 Peptide Catalyst2.2 Chiral Phosphoric Acid Catalyst2.3 Chiral Lewis Base Catalyst2.4 Chiral Quaternary Ammonium Salt Catalyst3 Metal Catalysis3.1 Mixed La-Li Heterobimetallic Catalyst3.2 Rh Catalyst3.3 Hf Catalyst3.4 Pd Catalyst3.5 Cu Catalyst3.6 Ag Catalyst4 Conclusion and Outlook
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Affiliation(s)
- Bo Ding
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University
| | - Qilin Xue
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University
| | - Hong-Gang Cheng
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University
| | - Qianghui Zhou
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University
- The Institute for Advanced Studies, Wuhan University
| | - Shihu Jia
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University
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13
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Song J, Zheng WH. Kinetic Resolution of Tertiary Alcohols by Chiral Organotin-Catalyzed O-Acylation. Org Lett 2022; 24:2349-2353. [PMID: 35315279 DOI: 10.1021/acs.orglett.2c00537] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A novel highly enantioselective method for the kinetic resolution of racemic tertiary alcohols has been achieved through chiral organotin-catalyzed intermolecular acylation of the hydroxyl group. This process has demonstrated a broad substrate scope (both alkyl- and aryl-substituted tertiary alcohols) with high enantioselectivity under mild reaction conditions, affording the corresponding products and the recovered tertiary alcohols with high enantioselectivities, with s factors up to >200.
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Affiliation(s)
- Jian Song
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, Jiangsu, China
| | - Wen-Hua Zheng
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, Jiangsu, China
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14
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Xi J, Yang H, Li L, Zhang X, Li C, Gu Z. Atroposelective Kinetic Resolution of 8 H-Indeno[1,2- c]thiophen-8-ols via Pd-Catalyzed C-C Bond Cleavage Reaction. Org Lett 2022; 24:2387-2392. [PMID: 35297631 DOI: 10.1021/acs.orglett.2c00642] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The present work demonstrates a palladium-catalyzed kinetic resolution/ring-opening reaction of 8H-indeno[1,2-c]thiophen-8-ols. The reaction proceeds in a highly regioselective manner, and both optically active thiophene-phenyl atropisomers and stereogenic 8H-indeno[1,2-c]thiophen-8-ols were obtained with high enantiomeric excesses. The synthetic applications of the obtained thiophenyl atropisomers were briefly investigated.
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Affiliation(s)
- Junwei Xi
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Han Yang
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Lin Li
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Xue Zhang
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Chunyu Li
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Zhenhua Gu
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
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15
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Segura-Quezada LA, Torres-Carbajal KR, Mali N, Patil DB, Luna-Chagolla M, Ortiz-Alvarado R, Tapia-Juárez M, Fraire-Soto I, Araujo-Huitrado JG, Granados-López AJ, Gutiérrez-Hernández R, Reyes-Estrada CA, López-Hernández Y, López JA, Chacón-García L, Solorio-Alvarado CR. Gold(I)-Catalyzed Synthesis of 4 H-Benzo[ d][1,3]oxazines and Biological Evaluation of Activity in Breast Cancer Cells. ACS OMEGA 2022; 7:6944-6955. [PMID: 35252686 PMCID: PMC8892638 DOI: 10.1021/acsomega.1c06637] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 02/01/2022] [Indexed: 06/14/2023]
Abstract
The first gold(I)-catalyzed cycloisomerization procedure applied to the synthesis of substituted 4H-benzo[d][1,3]oxazines has been developed starting from N-(2-alkynyl)aryl benzamides. The chemoselective oxygen cyclization via the 6-exo-dig pathway yielded the observed heterocycles in modest to good chemical yields under very mild reaction conditions. The obtained oxazines were assayed on the breast cancer (BC)-derived cell lines MCF-7 and HCC1954 with differential biological activity. The newly synthesized 4H-benzo[d][1,3]oxazine compounds showed several degrees of cell proliferation inhibition with a remarkable effect for those compounds having a substituted aryl at C-2 of the molecules. The 4H-benzo[d][1,3]oxazines showed an IC50 ranking from 3.1 to 95 μM in MCF-7 and HCC1954 cells. These compounds represent potential drug candidates for BC treatment. However, additional assays are needed to elucidate their complete effect over the cellular and molecular hallmarks of cancer.
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Affiliation(s)
- Luis A. Segura-Quezada
- División
de Ciencias Naturales y Exactas, Departamento de Química, Universidad de Guanajuato, Campus Guanajuato, Noria Alta S/N, 36050 Guanajuato, Guanajuato, Mexico
| | - Karina R. Torres-Carbajal
- División
de Ciencias Naturales y Exactas, Departamento de Química, Universidad de Guanajuato, Campus Guanajuato, Noria Alta S/N, 36050 Guanajuato, Guanajuato, Mexico
| | - Narendra Mali
- División
de Ciencias Naturales y Exactas, Departamento de Química, Universidad de Guanajuato, Campus Guanajuato, Noria Alta S/N, 36050 Guanajuato, Guanajuato, Mexico
| | - Dipak B. Patil
- División
de Ciencias Naturales y Exactas, Departamento de Química, Universidad de Guanajuato, Campus Guanajuato, Noria Alta S/N, 36050 Guanajuato, Guanajuato, Mexico
| | - Mauricio Luna-Chagolla
- División
de Ciencias Naturales y Exactas, Departamento de Química, Universidad de Guanajuato, Campus Guanajuato, Noria Alta S/N, 36050 Guanajuato, Guanajuato, Mexico
| | - Rafael Ortiz-Alvarado
- Instituto
de Ciencias Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Av. Universidad S/N, 58000 Morelia, Michoacán, Mexico
| | - Melissa Tapia-Juárez
- Laboratorio
de Diseño Molecular, Instituto de Investigaciones Químico
Biológicas, Universidad Michoacana
de San Nicolás de Hidalgo, Ciudad Universitaria, 58033 Morelia, Michoacán, Mexico
| | - Ixamail Fraire-Soto
- MicroRNAs
and Cancer Laboratory, Universidad Autónoma
de Zacatecas, Av. Preparatoria S/N, Agronómica, Campus II, 98066 Zacatecas, Zacatecas, Mexico
| | - Jorge Gustavo Araujo-Huitrado
- MicroRNAs
and Cancer Laboratory, Universidad Autónoma
de Zacatecas, Av. Preparatoria S/N, Agronómica, Campus II, 98066 Zacatecas, Zacatecas, Mexico
| | - Angelica Judith Granados-López
- MicroRNAs
and Cancer Laboratory, Universidad Autónoma
de Zacatecas, Av. Preparatoria S/N, Agronómica, Campus II, 98066 Zacatecas, Zacatecas, Mexico
| | - Rosalinda Gutiérrez-Hernández
- MicroRNAs
and Cancer Laboratory, Universidad Autónoma
de Zacatecas, Av. Preparatoria S/N, Agronómica, Campus II, 98066 Zacatecas, Zacatecas, Mexico
| | - Claudia Araceli Reyes-Estrada
- MicroRNAs
and Cancer Laboratory, Universidad Autónoma
de Zacatecas, Av. Preparatoria S/N, Agronómica, Campus II, 98066 Zacatecas, Zacatecas, Mexico
| | - Yamilé López-Hernández
- MicroRNAs
and Cancer Laboratory, Universidad Autónoma
de Zacatecas, Av. Preparatoria S/N, Agronómica, Campus II, 98066 Zacatecas, Zacatecas, Mexico
| | - Jesús Adrián López
- MicroRNAs
and Cancer Laboratory, Universidad Autónoma
de Zacatecas, Av. Preparatoria S/N, Agronómica, Campus II, 98066 Zacatecas, Zacatecas, Mexico
| | - Luis Chacón-García
- Laboratorio
de Diseño Molecular, Instituto de Investigaciones Químico
Biológicas, Universidad Michoacana
de San Nicolás de Hidalgo, Ciudad Universitaria, 58033 Morelia, Michoacán, Mexico
| | - César R. Solorio-Alvarado
- División
de Ciencias Naturales y Exactas, Departamento de Química, Universidad de Guanajuato, Campus Guanajuato, Noria Alta S/N, 36050 Guanajuato, Guanajuato, Mexico
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16
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Jiang Q, Qin T, Yang X. Asymmetric Synthesis of Hydroquinazolines Bearing C4-Tetrasubstituted Stereocenters via Kinetic Resolution of α-Tertiary Amines. Org Lett 2022; 24:625-630. [PMID: 34978827 DOI: 10.1021/acs.orglett.1c04039] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A novel protocol for asymmetric synthesis of hydroquinazolines bearing C4-tetrasubstituted stereocenters has been achieved through kinetic resolution of 2-amido α-tertiary benzylamines via chiral phosphoric acid catalyzed intramolecular dehydrative cyclizations. This method gave access to both α-tertiary benzylamines and hydroquinazolines with broad scope and high enantioselectivities. An intriguing restricted rotation of the C-N bond was observed for hydroquinazoline products bearing C4-tetrasubstituted stereocenters.
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Affiliation(s)
- Qianwen Jiang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Tianren Qin
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xiaoyu Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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17
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Smith SM, Greenhalgh MD, Feoktistova T, Walden DM, Taylor JE, Cordes DB, Slawin AMZ, Cheong PH, Smith AD. Scope, Limitations and Mechanistic Analysis of the HyperBTM‐Catalyzed Acylative Kinetic Resolution of Tertiary Heterocyclic Alcohols**. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101111] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Samuel M. Smith
- EaStCHEM School of Chemistry University of St Andrews North Haugh, St Andrews, Fife KY16 9ST UK
| | - Mark D. Greenhalgh
- EaStCHEM School of Chemistry University of St Andrews North Haugh, St Andrews, Fife KY16 9ST UK
- Department of Chemistry University of Warwick Coventry CV4 7AL UK
| | - Taisiia Feoktistova
- Department of Chemistry Oregon State University 153 Gilbert Hall Corvallis OR 97331 USA
| | - Daniel M. Walden
- Department of Chemistry Oregon State University 153 Gilbert Hall Corvallis OR 97331 USA
| | - James E. Taylor
- EaStCHEM School of Chemistry University of St Andrews North Haugh, St Andrews, Fife KY16 9ST UK
- Department of Chemistry University of Bath Claverton Down, Bath BA2 7AY UK
| | - David B. Cordes
- EaStCHEM School of Chemistry University of St Andrews North Haugh, St Andrews, Fife KY16 9ST UK
| | - Alexandra M. Z. Slawin
- EaStCHEM School of Chemistry University of St Andrews North Haugh, St Andrews, Fife KY16 9ST UK
| | - Paul Ha‐Yeon Cheong
- Department of Chemistry Oregon State University 153 Gilbert Hall Corvallis OR 97331 USA
| | - Andrew D. Smith
- EaStCHEM School of Chemistry University of St Andrews North Haugh, St Andrews, Fife KY16 9ST UK
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18
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Chen Y, Liu W, Yang X. Recent Advances in Kinetic Resolution of Tertiary Alcohols. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202110009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Kayal S, Kikuchi J, Shinagawa N, Umemiya S, Terada M. Kinetic Resolution of Racemic Tertiary Allylic Alcohols through S N2’ Reaction Using a Chiral Bisphosphoric Acid/Silver(I) Salt Co-catalyst System. Chem Sci 2022; 13:9607-9613. [PMID: 36091917 PMCID: PMC9400685 DOI: 10.1039/d2sc03052g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/20/2022] [Indexed: 12/02/2022] Open
Abstract
A highly efficient kinetic resolution (KR) of racemic tertiary allylic alcohols was achieved through an intramolecular allylic substitution reaction using a co-catalyst system composed of chiral bisphosphoric acid and silver carbonate. This reaction afforded enantioenriched diene monoepoxides along with the recovery of tertiary allylic alcohols in a highly enantioselective manner, realizing an extremely high s-factor in most cases. The present method provides a new access to enantioenriched tertiary allylic alcohols, multifunctional compounds that are applicable for further synthetic manipulations. A highly efficient KR of racemic tertiary allylic alcohols was developed through the intramolecular SN2′ reaction using the chiral bisphosphoric acid/silver carbonate co-catalyst system, affording cis-epoxides and recovered alcohols in a high s-factor.![]()
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Affiliation(s)
- Satavisha Kayal
- Department of Chemistry, Graduate School of Science, Tohoku University Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Jun Kikuchi
- Department of Chemistry, Graduate School of Science, Tohoku University Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Naoya Shinagawa
- Department of Chemistry, Graduate School of Science, Tohoku University Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Shigenobu Umemiya
- Department of Chemistry, Graduate School of Science, Tohoku University Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Masahiro Terada
- Department of Chemistry, Graduate School of Science, Tohoku University Aramaki, Aoba-ku Sendai 980-8578 Japan
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20
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Chen P, Zhou B, Wu P, Wang B, Ye L. Brønsted Acid Catalyzed Dearomatization by Intramolecular Hydroalkoxylation/Claisen Rearrangement: Diastereo‐ and Enantioselective Synthesis of Spirolactams. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202113464] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Peng‐Fei Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Bo Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Peng Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Binju Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Long‐Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China
- State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
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21
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Soleymani Movahed F, Foo SW, Mori S, Ogawa S, Saito S. Phosphorus-Based Organocatalysis for the Dehydrative Cyclization of N-(2-Hydroxyethyl)amides into 2-Oxazolines. J Org Chem 2021; 87:243-257. [PMID: 34882422 DOI: 10.1021/acs.joc.1c02318] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A metal-free, biomimetic catalytic protocol for the cyclization of N-(2-hydroxyethyl)amides to the corresponding 2-oxazolines (4,5-dihydrooxazoles), promoted by the 1,3,5,2,4,6-triazatriphosphorine (TAP)-derived organocatalyst tris(o-phenylenedioxy)cyclotriphosphazene (TAP-1) has been developed. This approach requires less precatalyst compared to the reported relevant systems, with respect to the phosphorus atom (the maximum turnover number (TON) ∼ 30), and exhibits a broader substrate scope and higher functional-group tolerance, providing the functionalized 2-oxazolines with retention of the configuration at the C(4) stereogenic center of the 2-oxazolines. Widely accessible β-amino alcohols can be used in this approach, and the cyclization of N-(2-hydroxyethyl)amides provides the desired 2-oxazolines in up to 99% yield. The mechanism of the reaction was studied by monitoring the reaction using spectral and analytical methods, whereby an 18O-labeling experiment furnished valuable insights. The initial step involves a stoichiometric reaction between the substrate and TAP-1, which leads to the in situ generation of the catalyst, a catechol cyclic phosphate, as well as to a pyrocatechol phosphate and two possible active intermediates. The dehydrative cyclization was also successfully conducted on the gram scale.
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Affiliation(s)
| | - Siong Wan Foo
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Shogo Mori
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Saeko Ogawa
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Susumu Saito
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan.,Research Center for Materials Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
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22
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Chen PF, Zhou B, Wu P, Wang B, Ye LW. Brønsted Acid Catalyzed Dearomatization by Intramolecular Hydroalkoxylation/Claisen Rearrangement: Diastereo- and Enantioselective Synthesis of Spirolactams. Angew Chem Int Ed Engl 2021; 60:27164-27170. [PMID: 34672067 DOI: 10.1002/anie.202113464] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Indexed: 12/17/2022]
Abstract
Described herein is a novel Brønsted acid catalyzed intramolecular hydroalkoxylation/Claisen rearrangement, allowing the practical and atom-economic synthesis of a range of valuable spirolactams from readily available ynamides in generally good to excellent yields with excellent diastereoselectivities and broad substrate scope. Importantly, an unexpected dearomatization of nonactivated arenes and heteroaromatic compounds is involved in this tandem sequence. Moreover, an asymmetric version of this tandem cyclization was also achieved by efficient kinetic resolution by chiral phosphoric acid catalysis. In addition, the [3,3]-rearrangement is shown to be kinetically preferred over the related [1,3]-rearrangement by theoretical calculations.
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Affiliation(s)
- Peng-Fei Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Bo Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Peng Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Binju Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.,State Key Laboratory of Organometallic Chemistry, Shanghai, Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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23
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Tang M, Gu H, He S, Rajkumar S, Yang X. Asymmetric Enamide–Imine Tautomerism in the Kinetic Resolution of Tertiary Alcohols. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106151] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Mengyao Tang
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China
- University of Chinese Academy of Sciences Beijing 100049 China
- Shanghai Institute of Organic Chemistry Shanghai 200032 China
| | - Huanchao Gu
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China
| | - Shunlong He
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China
| | - Subramani Rajkumar
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China
| | - Xiaoyu Yang
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China
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24
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Tang M, Gu H, He S, Rajkumar S, Yang X. Asymmetric Enamide-Imine Tautomerism in the Kinetic Resolution of Tertiary Alcohols. Angew Chem Int Ed Engl 2021; 60:21334-21339. [PMID: 34312956 DOI: 10.1002/anie.202106151] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Indexed: 12/23/2022]
Abstract
An efficient protocol for kinetic resolution of tertiary alcohols has been developed through an unprecedented asymmetric enamide-imine tautomerism process enabled by chiral phosphoric acid catalysis. A broad range of racemic 2-arylsulfonamido tertiary allyl alcohols could be kinetically resolved with excellent kinetic resolution performances (with s-factor up to >200). This method is particularly effective for a series of 1,1-dialkyl substituted allyl alcohols, which produced chiral tertiary alcohols that would be difficult to access via other asymmetric methods. Facile and versatile transformations of the chiral α-hydroxy imine and enamide products, especially the efficient stereodivergent synthesis of all four stereoisomers of β-amino tertiary alcohols using one enantiomer of the catalyst, demonstrated the value of this kinetic resolution method.
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Affiliation(s)
- Mengyao Tang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China.,University of Chinese Academy of Sciences, Beijing, 100049, China.,Shanghai Institute of Organic Chemistry, Shanghai, 200032, China
| | - Huanchao Gu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Shunlong He
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Subramani Rajkumar
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Xiaoyu Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
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25
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Access to enantioenriched compounds bearing challenging tetrasubstituted stereocenters via kinetic resolution of auxiliary adjacent alcohols. Nat Commun 2021; 12:3735. [PMID: 34145256 PMCID: PMC8213810 DOI: 10.1038/s41467-021-23990-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 05/21/2021] [Indexed: 11/28/2022] Open
Abstract
Contemporary asymmetric catalysis faces huge challenges when prochiral substrates bear electronically and sterically unbiased substituents and when substrates show low reactivities. One of the inherent limitations of chiral catalysts and ligands is their incapability in recognizing prochiral substrates bearing similar groups. This has rendered many enantiopure substances bearing several similar substituents inaccessible. Here we report the rationale, scope, and applications of the strategy of kinetic resolution of auxiliary adjacent alcohols (KRA*) that can be used to solve the above troubles. Using this method, a large variety of optically enriched tertiary alcohols, epoxides, esters, ketones, hydroxy ketones, epoxy ketones, β-ketoesters, and tetrasubstituted methane analogs with two, three, and four spatially and electronically similar groups can be readily obtained (totally 96 examples). At the current stage, the strategy serves as the optimal solution that can complement the inability caused by direct asymmetric catalysis in getting chiral molecules with challenging fully substituted stereocenters. A large number of enantiopure substances, such as those with tetrasubstituted carbon centres bearing several similar substituents, are inaccessible due to the incapability of chiral catalysts/ligands to recognize those substrates. Here, the authors develop kinetic resolution of auxiliary adjacent alcohols (KRA*) strategy to access various optically enriched compounds with two, three or four spatially and electronically similar groups.
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26
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Desrues T, Liu X, Pons JM, Monnier V, Amalian JA, Charles L, Quintard A, Bressy C. Indirect Tertiary Alcohol Enantiocontrol by Acylative Organocatalytic Kinetic Resolution. Org Lett 2021; 23:4332-4336. [PMID: 33999644 DOI: 10.1021/acs.orglett.1c01261] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The stereocontrol of tertiary alcohols represents a recurrent challenge in organic synthesis. In the present paper, we describe a simple, efficient, and indirect method to enantioselectively prepare tertiary alcohols through a chiral isothiourea catalyzed selective acylation of adjacent secondary alcohols. This transformation enables the kinetic resolution (KR) of easily prepared racemic diastereoenriched secondary/tertiary diols providing both monoesters and starting diols in highly enantioenriched forms (s-value >200).
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Affiliation(s)
- Titouan Desrues
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Xueyang Liu
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Jean-Marc Pons
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Valérie Monnier
- Aix Marseille Univ, CNRS, Centrale Marseille, FSCM, Marseille, France
| | | | | | - Adrien Quintard
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Cyril Bressy
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
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27
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Hua Y, Liu Z, Xie P, Ding B, Cheng H, Hong X, Zhou Q. Kinetic Resolution of Tertiary Benzyl Alcohols via Palladium/Chiral Norbornene Cooperative Catalysis. Angew Chem Int Ed Engl 2021; 60:12824-12828. [DOI: 10.1002/anie.202103428] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Indexed: 12/18/2022]
Affiliation(s)
- Yu Hua
- Sauvage Center for Molecular Sciences Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education) College of Chemistry and Molecular Sciences The Institute for Advanced Studies Wuhan University Wuhan 430072 China
| | - Ze‐Shui Liu
- Sauvage Center for Molecular Sciences Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education) College of Chemistry and Molecular Sciences The Institute for Advanced Studies Wuhan University Wuhan 430072 China
| | - Pei‐Pei Xie
- Department of Chemistry State Key Laboratory of Clean Energy Utilization Zhejiang University Hangzhou 310058 China
| | - Bo Ding
- Sauvage Center for Molecular Sciences Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education) College of Chemistry and Molecular Sciences The Institute for Advanced Studies Wuhan University Wuhan 430072 China
| | - Hong‐Gang Cheng
- Sauvage Center for Molecular Sciences Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education) College of Chemistry and Molecular Sciences The Institute for Advanced Studies Wuhan University Wuhan 430072 China
| | - Xin Hong
- Department of Chemistry State Key Laboratory of Clean Energy Utilization Zhejiang University Hangzhou 310058 China
| | - Qianghui Zhou
- Sauvage Center for Molecular Sciences Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education) College of Chemistry and Molecular Sciences The Institute for Advanced Studies Wuhan University Wuhan 430072 China
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28
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Hua Y, Liu Z, Xie P, Ding B, Cheng H, Hong X, Zhou Q. Kinetic Resolution of Tertiary Benzyl Alcohols via Palladium/Chiral Norbornene Cooperative Catalysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103428] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Yu Hua
- Sauvage Center for Molecular Sciences Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education) College of Chemistry and Molecular Sciences The Institute for Advanced Studies Wuhan University Wuhan 430072 China
| | - Ze‐Shui Liu
- Sauvage Center for Molecular Sciences Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education) College of Chemistry and Molecular Sciences The Institute for Advanced Studies Wuhan University Wuhan 430072 China
| | - Pei‐Pei Xie
- Department of Chemistry State Key Laboratory of Clean Energy Utilization Zhejiang University Hangzhou 310058 China
| | - Bo Ding
- Sauvage Center for Molecular Sciences Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education) College of Chemistry and Molecular Sciences The Institute for Advanced Studies Wuhan University Wuhan 430072 China
| | - Hong‐Gang Cheng
- Sauvage Center for Molecular Sciences Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education) College of Chemistry and Molecular Sciences The Institute for Advanced Studies Wuhan University Wuhan 430072 China
| | - Xin Hong
- Department of Chemistry State Key Laboratory of Clean Energy Utilization Zhejiang University Hangzhou 310058 China
| | - Qianghui Zhou
- Sauvage Center for Molecular Sciences Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education) College of Chemistry and Molecular Sciences The Institute for Advanced Studies Wuhan University Wuhan 430072 China
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29
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Uno H, Fujimoto D, Harada K, Tanaka C, Shibata N. Synthesis of Tetra-Substituted Trifluoromethyl-3,1-Benzoxazines by Transition-Metal-Catalyzed Decarboxylative Cyclization of N-Benzoyl Benzoxazinones. ChemistryOpen 2021; 10:518-522. [PMID: 33605087 PMCID: PMC8095294 DOI: 10.1002/open.202000360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/02/2021] [Indexed: 12/16/2022] Open
Abstract
Efficient synthesis of N,O-heterocyclic tetra-substituted trifluoromethyl-3,1-benzoxazines via a transition-metal-catalyzed decarboxylative intramolecular cyclization was achieved. The decarboxylation of N-benzoyl trifluoromethyl-benzoxazinones generated the amide oxygen nucleophile, allowing a selective internal C1 -attack on Pd- or Cu-coordinated zwitterions, affording medicinally attractive tetra-substituted vinyl- or ethynyl-trifluoromethyl-3,1-benzoxazines. This protocol can be applied to the synthesis of perfluoroalkyl- and non-fluorinated 3,1-benzoxazines.
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Affiliation(s)
- Hiroto Uno
- Department of Nanopharmaceutical SciencesNagoya Institute of Technology Gokiso, Showa-kuNagoya466-8555Japan
| | - Daichi Fujimoto
- Department of Life Science and Applied ChemistryNagoya Institute of Technology Gokiso, Showa-kuNagoya466-8555Japan
| | - Kyosuke Harada
- Department of Life Science and Applied ChemistryNagoya Institute of Technology Gokiso, Showa-kuNagoya466-8555Japan
| | - Chika Tanaka
- Department of Life Science and Applied ChemistryNagoya Institute of Technology Gokiso, Showa-kuNagoya466-8555Japan
| | - Norio Shibata
- Department of Nanopharmaceutical SciencesNagoya Institute of Technology Gokiso, Showa-kuNagoya466-8555Japan
- Department of Life Science and Applied ChemistryNagoya Institute of Technology Gokiso, Showa-kuNagoya466-8555Japan
- Institute of Advanced Fluorine-Containing MaterialsZhejiang Normal University688 Yingbin Avenue321004JinhuaP. R. China
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30
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Zhang CH, Gao Q, Li M, Wang JF, Yu CM, Mao B. Kinetic Resolution of Tertiary Allylic Alcohols: Highly Enantioselective Access to Cyclic Ethers Bearing an α-Tetrasubstituted Stereocenter. Org Lett 2021; 23:3949-3954. [DOI: 10.1021/acs.orglett.1c01110] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Chao-Huan Zhang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Qing Gao
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Meng Li
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Jian-Fei Wang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Chuan-Ming Yu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Bin Mao
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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31
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Liu W, Yang X. Recent Advances in (Dynamic) Kinetic Resolution and Desymmetrization Catalyzed by Chiral Phosphoric Acids. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100091] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Wei Liu
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 (P. R. China
- University of Chinese Academy of Sciences Beijing 100049 (P. R. China
- Shanghai Institute of Organic Chemistry Shanghai 200032 (P. R. China
| | - Xiaoyu Yang
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 (P. R. China
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32
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Qiu Y, Yuan H, Zhang X, Zhang J. Insights into the Chiral Phosphoric Acid-Catalyzed Dynamic Kinetic Asymmetric Hydroamination of Racemic Allenes: An Allyl Carbocation/Phosphate Pair Mechanism. J Org Chem 2021; 86:4121-4130. [PMID: 33617248 DOI: 10.1021/acs.joc.0c02956] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Computational studies of chiral phosphoric acid (CPA)-catalyzed dynamic kinetic asymmetric hydroamination (DyKAH) of racemic allenes show that the reaction proceeds through a catalytic asymmetric model involving a highly reactive π-allylic carbocationic intermediate, generated from a racemic allene through an intermolecular proton transfer mediated by CPA, which also results in a high E/Z selectivity. Moreover, the distortion-interaction, atom in molecule, and electrostatic interaction analyses and space-filling models are employed on the basis of the DyKAH catalyzed by (S)-A5 (reaction 1) or (R)-A2 (reaction 2) to explain the high enantioselectivity and the controlling effects of SPINOL scaffolds on the signs of enantioselectivity. Our calculations indicate that the enantioselectivity of reactions 1 and 2 can be mainly ascribed to the favorable noncovalent interactions within the stronger chiral electrostatic environment created by the phosphoric acid in the preferential transition states. Finally, the effect of (S/R)-SPINOL-based CPAs on the signs of enantioselectivity can be explained by the different combination modes of substrates into the chiral binding pocket of the catalyst controlled by the chirality of SPINOL backbones. Overall, the new insights into the reaction rationalize the outcome and these key factors that affect the product enantioselectivity are important to guide the DyKAHs.
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Affiliation(s)
- Yuting Qiu
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Haiyan Yuan
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xiaoying Zhang
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jingping Zhang
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
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33
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Liao K, Gong Y, Zhu R, Wang C, Zhou F, Zhou J. Highly Enantioselective CuAAC of Functional Tertiary Alcohols Featuring an Ethynyl Group and Their Kinetic Resolution. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016286] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Kui Liao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Yi Gong
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Ren‐Yi Zhu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Cai Wang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Feng Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 P. R. China
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34
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Liao K, Gong Y, Zhu R, Wang C, Zhou F, Zhou J. Highly Enantioselective CuAAC of Functional Tertiary Alcohols Featuring an Ethynyl Group and Their Kinetic Resolution. Angew Chem Int Ed Engl 2021; 60:8488-8493. [DOI: 10.1002/anie.202016286] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Kui Liao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Yi Gong
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Ren‐Yi Zhu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Cai Wang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Feng Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 P. R. China
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35
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Kinetic Resolution of 2‐
N
‐Acylamido Tertiary Allylic Alcohols: Asymmetric Synthesis of Oxazolines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001051] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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36
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Qu S, Smith SM, Laina‐Martín V, Neyyappadath RM, Greenhalgh MD, Smith AD. Isothiourea-Catalyzed Acylative Kinetic Resolution of Tertiary α-Hydroxy Esters. Angew Chem Int Ed Engl 2020; 59:16572-16578. [PMID: 32491267 PMCID: PMC7540711 DOI: 10.1002/anie.202004354] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/28/2020] [Indexed: 01/08/2023]
Abstract
A highly enantioselective isothiourea-catalyzed acylative kinetic resolution (KR) of acyclic tertiary alcohols has been developed. Selectivity factors of up to 200 were achieved for the KR of tertiary alcohols bearing an adjacent ester substituent, with both reaction conversion and enantioselectivity found to be sensitive to the steric and electronic environment at the stereogenic tertiary carbinol centre. For more sterically congested alcohols, the use of a recently-developed isoselenourea catalyst was optimal, with equivalent enantioselectivity but higher conversion achieved in comparison to the isothiourea HyperBTM. Diastereomeric acylation transition state models are proposed to rationalize the origins of enantiodiscrimination in this process. This KR procedure was also translated to a continuous-flow process using a polymer-supported variant of the catalyst.
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Affiliation(s)
- Shen Qu
- EaStChemSchool of ChemistryUniversity of St AndrewsNorth HaughSt AndrewsFifeKY16 9STUK
| | - Samuel M. Smith
- EaStChemSchool of ChemistryUniversity of St AndrewsNorth HaughSt AndrewsFifeKY16 9STUK
| | - Víctor Laina‐Martín
- EaStChemSchool of ChemistryUniversity of St AndrewsNorth HaughSt AndrewsFifeKY16 9STUK
| | | | - Mark D. Greenhalgh
- EaStChemSchool of ChemistryUniversity of St AndrewsNorth HaughSt AndrewsFifeKY16 9STUK
| | - Andrew D. Smith
- EaStChemSchool of ChemistryUniversity of St AndrewsNorth HaughSt AndrewsFifeKY16 9STUK
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37
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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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38
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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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39
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Qu S, Smith SM, Laina‐Martín V, Neyyappadath RM, Greenhalgh MD, Smith AD. Isothiourea‐Catalyzed Acylative Kinetic Resolution of Tertiary α‐Hydroxy Esters. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shen Qu
- EaStChemSchool of ChemistryUniversity of St Andrews North Haugh St Andrews Fife KY16 9ST UK
| | - Samuel M. Smith
- EaStChemSchool of ChemistryUniversity of St Andrews North Haugh St Andrews Fife KY16 9ST UK
| | - Víctor Laina‐Martín
- EaStChemSchool of ChemistryUniversity of St Andrews North Haugh St Andrews Fife KY16 9ST UK
| | | | - Mark D. Greenhalgh
- EaStChemSchool of ChemistryUniversity of St Andrews North Haugh St Andrews Fife KY16 9ST UK
| | - Andrew D. Smith
- EaStChemSchool of ChemistryUniversity of St Andrews North Haugh St Andrews Fife KY16 9ST UK
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40
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Ye X, Pan Y, Chen Y, Yang X. Enantioselective Construction of Sulfur‐Containing Tetrasubstituted Stereocenters via Asymmetric Functionalizations of α‐Sulfanyl Cyclic Ketones. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000520] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xueqian Ye
- School of Physical Science and TechnologyShanghaiTech University Shanghai 201210 People's Republic of China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Yongkai Pan
- School of Physical Science and TechnologyShanghaiTech University Shanghai 201210 People's Republic of China
| | - Yunrong Chen
- School of Physical Science and TechnologyShanghaiTech University Shanghai 201210 People's Republic of China
| | - Xiaoyu Yang
- School of Physical Science and TechnologyShanghaiTech University Shanghai 201210 People's Republic of China
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41
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He S, Gu H, He YP, Yang X. Asymmetric Aza-Diels–Alder Reactions of in Situ Generated β,β-Disubstituted α,β-Unsaturated N–H Ketimines Catalyzed by Chiral Phosphoric Acids. Org Lett 2020; 22:5633-5639. [DOI: 10.1021/acs.orglett.0c01994] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Shunlong He
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
- College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, China
| | - Huanchao Gu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Yu-Peng He
- College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, China
| | - Xiaoyu Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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42
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Zhang JL, Gao D, Tan YX, He CY, Peng PY, Lin GQ, Li QH, Tian P. Rhodium(III)-Catalyzed Kinetic Resolution of Racemic 1,6-Dienes via Asymmetric Borylative Cyclization. Org Lett 2020; 22:3661-3666. [DOI: 10.1021/acs.orglett.0c01156] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jun-Li Zhang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Dingding Gao
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Yun-Xuan Tan
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Cheng-Yu He
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Pei-Ying Peng
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Guo-Qiang Lin
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Qing-Hua Li
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Ping Tian
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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43
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Chen C, Wang H, Sun Y, Cui J, Xie J, Shi Y, Yu S, Hong X, Lu Z. Iron-Catalyzed Asymmetric Hydrosilylation of Vinylcyclopropanes via Stereospecific C-C Bond Cleavage. iScience 2020; 23:100985. [PMID: 32240952 PMCID: PMC7115165 DOI: 10.1016/j.isci.2020.100985] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/06/2020] [Accepted: 03/10/2020] [Indexed: 11/17/2022] Open
Abstract
An iron-catalyzed highly anti-Markovnikov selective, enantioselective hydrosilylation of vinylcyclopropanes with PhSiH3 was reported for the preparation of valuable chiral allylic silanes via stereospecific C-C bond cleavage. Simultaneously, difficultly prepared chiral VCPs could be also obtained with moderate to excellent enantioselectivity via this kinetic resolution pathway. The chiral Z-allylic silanes could be converted to various chiral allylic derivatives. A possible mechanism via an iron-silyl species was proposed based on experimental and computational studies. Iron-catalyzed 1,5-hydrosilylation of VCPs via C-C bond cleavage was first established Chiral allyl silanes and chiral VCPs were obtained with high enantioselectivity Various chiral allylic derivatives were delivered from chiral Z-allylic silanes A possible mechanism via an iron-silyl species was proposed
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Affiliation(s)
- Chenhui Chen
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Hongliang Wang
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yufeng Sun
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Jiayan Cui
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Jianbo Xie
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yang Shi
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Shijia Yu
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Xin Hong
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China.
| | - Zhan Lu
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China.
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