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Su L, Sun H, Liu J, Wang C. Construction of Quaternary Carbon Center via NHC Catalysis Initiated by an Intermolecular Heck-Type Alkyl Radical Addition. Org Lett 2021; 23:4662-4666. [PMID: 34080869 DOI: 10.1021/acs.orglett.1c01400] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A quaternary carbon center containing an oxindole motif is constructed via NHC-catalyzed transition-metal and aldehyde-free intermolecular Heck-type alkyl radical addition initiated annulation. This redox-neutral protocol also features a simple procedure, broad substrate scope, good functional group tolerance and could be smoothly amplified to a gram scale. The mechanism study shows that the reaction possibly undergoes two folds of SET processes with an NHC radical cation intermediate involved.
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Affiliation(s)
- Lanjun Su
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Huan Sun
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Jikai Liu
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Chengming Wang
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, China
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Zhao J, Li P, Xu Y, Shi Y, Li F. Nickel-Catalyzed Transformation of Diazoacetates to Alkyl Radicals Using Alcohol as a Hydrogen Source. Org Lett 2019; 21:9386-9390. [DOI: 10.1021/acs.orglett.9b03610] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jingjing Zhao
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Pan Li
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Yaohua Xu
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Yixin Shi
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Fuwei Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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Kanyiva KS, Makino S, Shibata T. Silver-Catalyzed Efficient Synthesis of Oxindoles and Pyrroloindolines via α-Aminoalkylation of N
-Arylacrylamides with Amino Acid Derivatives. Chem Asian J 2018; 13:496-499. [DOI: 10.1002/asia.201701739] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Indexed: 01/10/2023]
Affiliation(s)
- Kyalo Stephen Kanyiva
- Global Center for Science and Engineering, School of Advanced Science and Engineering; Waseda University; Shinjuku Tokyo 169-8555 Japan
| | - Sohei Makino
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering; Waseda University; Shinjuku Tokyo 169-8555 Japan
| | - Takanori Shibata
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering; Waseda University; Shinjuku Tokyo 169-8555 Japan
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6
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Tan FL, Song RJ, Hu M, Li JH. Metal-Free Oxidative 1,2-Arylmethylation Cascades of N-(Arylsulfonyl)acrylamides Using Peroxides as the Methyl Resource. Org Lett 2016; 18:3198-201. [PMID: 27286238 DOI: 10.1021/acs.orglett.6b01419] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A new, metal-free oxidative 1,2-arylmethylation cascades of N-(arylsulfonyl)acrylamides for the assembly of 2,2-disubstituted-N-arylbutanamides containing an all-carbon quaternary center is presented. This reaction enables the one-step formation of two new C-C bonds through a sequence of methylation/1,4-aryl migration/desulfonylation using an organic peroxide as the methyl resource with a broad substrate scope and excellent functional group tolerance.
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Affiliation(s)
- Fang-Lin Tan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University , Changsha 410082, China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University , Nanchang 330063, China
| | - Ming Hu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University , Changsha 410082, China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University , Changsha 410082, China.,Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University , Nanchang 330063, China
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Li CC, Yang SD. Various difunctionalizations of acrylamide: an efficient approach to synthesize oxindoles. Org Biomol Chem 2016; 14:4365-77. [DOI: 10.1039/c6ob00554c] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this review, we summarize the advancement and applications in the difunctionalization of acrylamide to synthesize oxindoles based on the mechanism.
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Affiliation(s)
- Chen-Chen Li
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
- Cuiying Honors College
| | - Shang-Dong Yang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
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8
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O,S-Disubstituted xanthogenates in heterocyclic synthesis. Chem Heterocycl Compd (N Y) 2016. [DOI: 10.1007/s10593-016-1825-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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9
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Wang S, Huang X, Wang Q, Ge Z, Wang X, Li R. An efficient synthesis of sulfonated quinoline diones by copper catalyzed sulfonylation of activated alkenes with sulfonylhydrazides. RSC Adv 2016. [DOI: 10.1039/c5ra27878c] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
A novel and highly efficient cascade synthesis of sulfonated quinoline dione derivatives from N-(2-cyanoaryl) methylacrylamides and sulfonylhydrazides in good yields is described.
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Affiliation(s)
- Shucheng Wang
- State Key Laboratory of National and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- P. R. China
| | - Xuhu Huang
- State Key Laboratory of National and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- P. R. China
| | - Qi Wang
- State Key Laboratory of National and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- P. R. China
| | - Zemei Ge
- State Key Laboratory of National and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- P. R. China
| | - Xin Wang
- State Key Laboratory of National and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- P. R. China
| | - Runtao Li
- State Key Laboratory of National and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- P. R. China
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Wang S, Huang X, Ge Z, Wang X, Li R. Metal-free C-3 alkylation of imidazopyridines with xanthates and convenient access to alpidem and zolpidem. RSC Adv 2016. [DOI: 10.1039/c6ra09046j] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A metal-free process for the C-3 alkylation of imidazopyridines have been developed. Various alkylation products including alkyl ester-, cyano-, ketone- and amide-substituted imidazopyridines were prepared in good yields.
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Affiliation(s)
- Shucheng Wang
- State Key Laboratory of National and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- P. R. China
| | - Xuhu Huang
- State Key Laboratory of National and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- P. R. China
| | - Zemei Ge
- State Key Laboratory of National and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- P. R. China
| | - Xin Wang
- State Key Laboratory of National and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- P. R. China
| | - Runtao Li
- State Key Laboratory of National and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- P. R. China
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Pan C, Chen R, Shao W, Yu JT. Metal-free radical addition/cyclization of alkynoates with xanthates towards 3-(β-carbonyl)coumarins. Org Biomol Chem 2016; 14:9033-9. [DOI: 10.1039/c6ob01732k] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dilauroyl peroxide-promoted radical carboannulation of alkynoates with xanthates was developed, affording 4-aryl-3-(β-carbonyl) coumarins in moderate to good yields.
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Affiliation(s)
- Changduo Pan
- School of Chemistry & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 213001
- P. R. China
- School of Petrochemical Engineering
| | - Rongzhen Chen
- School of Chemistry & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 213001
- P. R. China
- School of Petrochemical Engineering
| | - Weile Shao
- School of Chemistry & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 213001
- P. R. China
| | - Jin-Tao Yu
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
- Changzhou University
- Changzhou 213164
- P. R. China
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Mai WP, Sun B, Qian GS, Yuan JW, Mao P, Yang LR, Xiao YM. Metal-free trifluoroethylation of activated alkenes: rapid access to construct fluorinated 3,3-disubstituted 2-oxindoles. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.09.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Wang S, Huang X, Wen Y, Ge Z, Wang X, Li R. Cascade synthesis of spirooxindole δ-lactone derivatives through N-aryl hydroxymethylacrylamides with xanthates. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.08.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Zhang M, Sheng W, Ji P, Liu Y, Guo C. Metal-free direct cyanoisopropylation/arylation of N-arylacrylamides or N-alkyl-N-(arylsulfonyl)acrylamides with AIBN: a simple and mild approach to cyano-containing oxindoles. RSC Adv 2015. [DOI: 10.1039/c5ra10084d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
A general, highly efficient approach to cyano-containing oxindoles is presented that is achieved by a metal-free direct cyanoisopropylation/arylation ofN-arylacrylamides orN-alkyl-N-(arylsulfonyl)acrylamides with AIBN.
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Affiliation(s)
- Mingzhong Zhang
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Wenbing Sheng
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
- Hunan University of Chinese Medicine
| | - Pengyi Ji
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Yufeng Liu
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Cancheng Guo
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
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