1
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Li LX, Li CR, Guo X, Zhang Z. Photoredox/Copper-Catalyzed One-Pot Aminoalkylation/Cyclization of Alkenes with Primary Amines to Synthesize Polysubstituted γ-Lactams. Org Lett 2024; 26:845-849. [PMID: 38251862 DOI: 10.1021/acs.orglett.3c03974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Visible-light-driven chemical transformation has emerged as a powerful tool for the synthesis of γ-lactams. However, during this transformation, the α-bromoimides need to be pre-prepared. Herein, we report a photoreodox/copper-catalyzed one-pot three-component reaction of alkenes with primary amines for the construction of γ-lactams. In this transformation, the orthoquinones were generated via a photocatalytic pathway, followed by attack by Cu-amido complexes and intramolecular cyclization to give the γ-lactams. This method represents a simple synthetic route displaying broad functional group tolerance, including substrates bearing alcohols, ketones, heterocycles, esters, halides, alkynes, nitriles, ethers, etc.
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Affiliation(s)
- Li-Xin Li
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, China
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Zhengzhou 450046, China
| | - Chen-Rui Li
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Xu Guo
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Zhenqiang Zhang
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, China
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Zhengzhou 450046, China
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2
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Deng H, Wang J, He W, Ye Y, Bai R, Zhang X, Ye XY, Xie T, Hui Z. Microwave-assisted rapid synthesis of chiral oxazolines. Org Biomol Chem 2023; 21:2312-2319. [PMID: 36637123 DOI: 10.1039/d2ob02192g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Chiral oxazoline compounds play an extremely important role in asymmetric synthesis and drug discovery. Herein a simpler, greener and more efficient microwave-assisted protocol to rapidly access chiral oxazolines is developed using aryl nitriles or cyano-containing compounds and chiral β-amino alcohols as starting materials. The reaction proceeds smoothly in the presence of a recoverable heterogeneous catalyst in either concentrated solution or under solvent-free conditions. The advantages of this method include rapidness, convenience, environmental protection, high atom economy, and excellent yields. The protocol should find wider application in the community in the future.
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Affiliation(s)
- Haowen Deng
- School of Pharmacy, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China. .,Key Laboratory of Elemene Class Anti-Cancer Chinese Medicine of Zhejiang Province, China.,Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, China.,Collaborative Innovation Center of Chinese Medicines from Zhejiang Province, China
| | - Jianshe Wang
- Drug Discovery, Hangzhou PurpleCrystal Pharma Co. Ltd, Hangzhou, Zhejiang 311121, China
| | - Wei He
- Chemical Manufacturing and Control, Adlai Nortye Ltd, Hangzhou, Zhejiang 311121, China
| | - Yang Ye
- School of Pharmacy, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China. .,Key Laboratory of Elemene Class Anti-Cancer Chinese Medicine of Zhejiang Province, China.,Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, China.,Collaborative Innovation Center of Chinese Medicines from Zhejiang Province, China
| | - Renren Bai
- School of Pharmacy, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China. .,Key Laboratory of Elemene Class Anti-Cancer Chinese Medicine of Zhejiang Province, China.,Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, China.,Collaborative Innovation Center of Chinese Medicines from Zhejiang Province, China
| | - Xuelei Zhang
- School of Pharmacy, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China. .,Key Laboratory of Elemene Class Anti-Cancer Chinese Medicine of Zhejiang Province, China.,Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, China.,Collaborative Innovation Center of Chinese Medicines from Zhejiang Province, China
| | - Xiang-Yang Ye
- School of Pharmacy, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China. .,Key Laboratory of Elemene Class Anti-Cancer Chinese Medicine of Zhejiang Province, China.,Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, China.,Collaborative Innovation Center of Chinese Medicines from Zhejiang Province, China
| | - Tian Xie
- School of Pharmacy, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China. .,Key Laboratory of Elemene Class Anti-Cancer Chinese Medicine of Zhejiang Province, China.,Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, China.,Collaborative Innovation Center of Chinese Medicines from Zhejiang Province, China
| | - Zi Hui
- School of Pharmacy, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China. .,Key Laboratory of Elemene Class Anti-Cancer Chinese Medicine of Zhejiang Province, China.,Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, China.,Collaborative Innovation Center of Chinese Medicines from Zhejiang Province, China
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3
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Dai L, Zhang Z, Zhu G, Liu Y, Liu X, Zhang J, Rong L. Fluorohydroxylation and Hydration Reactions of para-Quinone Methides Promoted by Selectfluor. J Org Chem 2023; 88:1352-1363. [PMID: 36695008 DOI: 10.1021/acs.joc.2c02069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Selectfluor-promoted vicinal fluorohydroxylation and hydration reaction of para-quinone methides (p-QMs) were described, affording vicinal fluorohydrins and ketone/ether products in high yields. The hydration products were highly controlled by the electronic properties of substituents in the aromatic ring, and simultaneously, the amount of Selectfluor was completely different during the synthesis of ketone/ether products. This reaction also represents the first fluorohydroxylation of p-QMs, and the wide range of p-QMs makes the vicinal fluorohydroxylation of great significance.
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Affiliation(s)
- Lei Dai
- Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Zhou Zhang
- Department of Chemical Engineering &Technology, China University of Mining and Technology, Xuzhou, Jiangsu 221116, P. R. China
| | - Guangzhou Zhu
- Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Yun Liu
- Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Xiaoqin Liu
- Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Jinpeng Zhang
- Key Lab of Environment and Health, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P. R. China
| | - Liangce Rong
- Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
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4
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Han Y, Zhang L, Luo S. Highly Stereoselective Construction of β,β-Diaryl-α-Branched Ketones by the Chiral Primary Amine-Catalyzed Asymmetric Retro-Claisen Reaction. Org Lett 2022; 24:1752-1756. [DOI: 10.1021/acs.orglett.2c00435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yanfang Han
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing 100490, China
| | - Long Zhang
- Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Sanzhong Luo
- Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China
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5
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Liu B, Qi J, Wu Y, Li JH, Li Y, Duan XY. The N-heterocyclic carbene-catalyzed [3 + 2] annulation of isoindigos with enals: the enantioselective construction of three contiguous stereogenic centers. Org Chem Front 2022. [DOI: 10.1039/d1qo01507a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
An NHC-catalyzed enantioselective [3 + 2] annulation of enals and isoindigo is introduced as an efficient strategy for the construction of dimeric spirocyclic bisindoline alkaloid derivatives with moderate yields and good enantioselectivities.
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Affiliation(s)
- Binghao Liu
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, People's Republic of China
| | - Jing Qi
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, People's Republic of China
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Hebei University, Baoding 071002, People's Republic of China
| | - Yatong Wu
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, People's Republic of China
| | - Jia-Hui Li
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, People's Republic of China
| | - Yanting Li
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, People's Republic of China
| | - Xiao-Yong Duan
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, People's Republic of China
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Hebei University, Baoding 071002, People's Republic of China
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6
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Wang Y, Wang CJ, Feng QZ, Zhai JJ, Qi S, Zhong AG, Chu M, Xu DQ. Copper-catalyzed asymmetric 1,6-conjugate addition of in situ generated para-quinone methides with β-ketoesters. Chem Commun (Camb) 2022; 58:6653-6656. [DOI: 10.1039/d2cc00146b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Cu-catalyzed asymmetric 1,6-conjugate addition of in situ generated para-quinone methides (p-QMs) with β-ketoester has been developed to construct the ketoester skeleton bearing adjacent tertiary-quaternary carbon stereocenter in good yields...
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7
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Zhou Y, Zhao P, Wang LS, Yu XX, Huang C, Wu YD, Wu AX. Direct C-C Bond Cleavage of 1,3-Dicarbonyl Compounds as a Single-Carbon Synthon: Synthesis of 2-Aryl-4-quinolinecarboxylates. Org Lett 2021; 23:6461-6465. [PMID: 34346696 DOI: 10.1021/acs.orglett.1c02267] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A novel [2 + 1 + 3] cyclization reaction for the synthesis of 2-aryl-4-quinolinecarboxylates from aryl methyl ketones, arylamines, and 1,3-dicarbonyl compounds has been established. This metal-free process achieved the C-C bond cleavage of 1,3-dicarbonyl compounds directly as a single-carbon synthon. The reaction is highly efficient and has good substrate compatibility while operating under mild conditions. This method has good practicability and successfully realized the synthesis of bioactive molecules.
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Affiliation(s)
- You Zhou
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Peng Zhao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Li-Sheng Wang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xiao-Xiao Yu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Chun Huang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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8
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Lu Z, Zhang Q, Ke M, Hu S, Xiao X, Chen F. TfOH-Catalyzed [4 + 1] Annulation of p-Quinone Methides with α-Aryl Diazoacetates: Straightforward Access to Highly Functionalized 2,3-Dihydrobenzofurans. J Org Chem 2021; 86:7625-7635. [PMID: 33993694 DOI: 10.1021/acs.joc.1c00672] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We have developed a methodology for the greatly efficient construction of significant 2,3-dihydrobenzofuran scaffolds bearing a quaternary carbon center at the C2 position by means of [4 + 1] annulation reactions between p-quinone methides and α-aryl diazoacetates as C1 synthons through organocatalysis by readily accessible TfOH catalyst under mild and transition metal-free conditions. This metal-free protocol furnishes an operationally simple and swift process for the free assembly of diverse highly functionalized 2,3-dihydrobenzofurans and also features broad substrate scope, excellent functional group compatibility, and environmental friendliness. Mechanistic investigation suggested that the reaction undergoes a rapid cascade protonation/intermolecular Michael addition/intramolecular substitution process.
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Affiliation(s)
- Zuolin Lu
- Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Qingchun Zhang
- Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Miaolin Ke
- Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Sha Hu
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Fudan University, Shanghai 200433, P.R. China
| | - Xiao Xiao
- Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Fener Chen
- Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, Hangzhou 310014, P.R. China.,Engineering Center of Catalysis and Synthesis for Chiral Molecules, Fudan University, Shanghai 200433, P.R. China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China
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9
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Zhang H, Yang Z, Zhang H, Han Y, Zhao J, Zhang Y. The Cross‐Dehydrogenative Coupling Reaction of β‐Ketoesters with Quinoxalin‐2(1
H
)‐ones. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100310] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Hong‐Yu Zhang
- School of Chemical Engineering and Technology Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving Tianjin Key Laboratory of Chemical Process Safety Hebei University of Technology Tianjin 300130 P. R. China
| | - Zibing Yang
- School of Chemical Engineering and Technology Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving Tianjin Key Laboratory of Chemical Process Safety Hebei University of Technology Tianjin 300130 P. R. China
| | - Huizhen Zhang
- School of Chemical Engineering and Technology Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving Tianjin Key Laboratory of Chemical Process Safety Hebei University of Technology Tianjin 300130 P. R. China
| | - Ya‐Ping Han
- School of Chemical Engineering and Technology Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving Tianjin Key Laboratory of Chemical Process Safety Hebei University of Technology Tianjin 300130 P. R. China
| | - Jiquan Zhao
- School of Chemical Engineering and Technology Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving Tianjin Key Laboratory of Chemical Process Safety Hebei University of Technology Tianjin 300130 P. R. China
| | - Yuecheng Zhang
- School of Chemical Engineering and Technology Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving Tianjin Key Laboratory of Chemical Process Safety Hebei University of Technology Tianjin 300130 P. R. China
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10
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Duan SB, Zhang HY, Hao BY, Zhao J, Han YP, Zhang Y, Liang YM. Palladium-catalyzed intramolecular diastereoselective dearomatization reaction of indoles with N-tosylhydrazones. Org Chem Front 2021. [DOI: 10.1039/d1qo00893e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A novel, highly diastereoselective palladium-catalyzed dearomative reaction of N-halobenzoyl o-haloaniline derivatives has been developed using functionalized N-tosylhydrazones as the coupling partners.
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Affiliation(s)
- Shao-Bo Duan
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Hong-Yu Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Bo-Ya Hao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Jiquan Zhao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Ya-Ping Han
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Yuecheng Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China
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11
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Li X, Gao G, He S, Song Q. Copper-catalyzed 1,6-conjugate addition of para-quinone methides with diborylmethane. Org Chem Front 2021. [DOI: 10.1039/d1qo00632k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Presented herein is the first 1,6-conjugate addition of diborylmethane. This reaction features high yields, mild reaction conditions, and broad functional group compatibilities.
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Affiliation(s)
- Xin Li
- Institute of Next Generation Matter Transformation
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
| | - Guoliang Gao
- Institute of Next Generation Matter Transformation
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
| | - Songtao He
- Institute of Next Generation Matter Transformation
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
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12
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Wang L, Yang F, Xu X, Jiang J. Organocatalytic 1,6-hydrophosphination of para-quinone methides: enantioselective access to chiral 3-phosphoxindoles bearing phosphorus-substituted quaternary carbon stereocenters. Org Chem Front 2021. [DOI: 10.1039/d0qo01638a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient organocatalytic enantioselective 1,6-hydrophosphonylation of para-quinone methides has been achieved for the construction of phosphorus-substituted quaternary carbon stereocenters.
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Affiliation(s)
- Lisheng Wang
- School of Chemistry and Chemical Engineering
- Guangxi University
- Nanning
- P. R. China
- Medicinal College
| | - Fuxing Yang
- School of Chemistry and Chemical Engineering
- Guangxi University
- Nanning
- P. R. China
| | - Xiaoping Xu
- School of Chemistry and Chemical Engineering
- Guangxi University
- Nanning
- P. R. China
| | - Jun Jiang
- School of Chemistry and Chemical Engineering
- Guangxi University
- Nanning
- P. R. China
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