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1
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Fang Z, Gong Y, Liu B, Zhang J, Han X, Liu Z, Ning Y. Rh-Catalyzed Coupling Reactions of Fluoroalkyl N-Sulfonylhydrazones with Azides Leading to α-Trifluoroethylated Imines. Org Lett 2022; 24:8920-8924. [DOI: 10.1021/acs.orglett.2c03773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhongxue Fang
- School of Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng City, Jiangsu 224007, People’s Republic of China
| | - Yanmei Gong
- School of Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng City, Jiangsu 224007, People’s Republic of China
| | - Binbin Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design and Synthesis, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Jin Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design and Synthesis, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Xinyue Han
- Jilin Province Key Laboratory of Organic Functional Molecular Design and Synthesis, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Zhaohong Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design and Synthesis, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Yongquan Ning
- Jilin Province Key Laboratory of Organic Functional Molecular Design and Synthesis, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
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2
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Fang Z, Zhang Y, Zhang Z, Song Q, Wu Y, Liu Z, Ning Y. Synthesis of gem-Disulfonyl Enamines via an Iminyl-Radical-Mediated Formal 1,3-HAT/Radical Coupling Cascade. Org Lett 2022; 24:6374-6379. [PMID: 36018352 DOI: 10.1021/acs.orglett.2c02277] [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
We herein report the first example of an iminyl-radical-mediated formal 1,3-HAT/radical coupling cascade of vinyl azides leading to the synthesis of tetrasubstituted gem-disulfonyl enamines. It is possible to employ a variety of vinyl azides and sulfinate salt coupling elements without sacrificing effectiveness and scalability. The combination of experimental studies and DFT calculations showed that this reaction proceeds via a radical addition/formal 1,3-HAT/radical coupling mechanism.
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Affiliation(s)
- Zhongxue Fang
- School of Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng City 224007, People's Republic of China
| | - Yujie Zhang
- School of Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng City 224007, People's Republic of China
| | - Zhansong Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China
| | - Qingming Song
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China
| | - Yong Wu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China
| | - Zhaohong Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China
| | - Yongquan Ning
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China
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3
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Wang Y, Wang YJ, Liang XC, Shen MH, Xu HD, Xu D. An aryl thiol-vinyl azide coupling reaction and a thiol-vinyl azide coupling/cyclization cascade: efficient synthesis of β-ketosulfides and arene-fused 5-methylene-2-pyrrolidinone derivatives. Org Biomol Chem 2021; 19:5169-5176. [PMID: 34037057 DOI: 10.1039/d1ob00328c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The addition reaction of thiol to vinyl azide has been extensively studied. Variously substituted aryl thiols are all viable for this coupling process. The scope of the other partner is successfully expanded from α-aryl vinyl azide to α-alkyl vinyl azide. A thiol-vinyl azide coupling/cyclization cascade is realized with substituted aryl vinyl azides carrying a 2-methoxycarbonyl group. The value of β-ketosulfide products was demonstrated by its application in S-heterocycle synthesis.
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Affiliation(s)
- Yong Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province 213164, China.
| | - Yu-Jiao Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province 213164, China.
| | - Xian-Chen Liang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province 213164, China.
| | - Mei-Hua Shen
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province 213164, China.
| | - Hua-Dong Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province 213164, China.
| | - Defeng Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Pharmacy, Changzhou University, Changzhou, Jiangsu Province 213164, China.
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4
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Affiliation(s)
- Paramasivam Sivaguru
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Northeast Normal University, Changchun 130024, China
| | - Yongquan Ning
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Northeast Normal University, Changchun 130024, China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Northeast Normal University, Changchun 130024, China
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Zhang X, Zhang Z, Song JN, Wang Z. Reductive radical-initiated 1,2-C migration assisted by an azidyl group. Chem Sci 2020; 11:7921-7926. [PMID: 34123076 PMCID: PMC8163324 DOI: 10.1039/d0sc02559c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
We report here a novel reductive radical-polar crossover reaction that is a reductive radical-initiated 1,2-C migration of 2-azido allyl alcohols enabled by an azidyl group. The reaction tolerates diverse migrating groups, such as alkyl, alkenyl, and aryl groups, allowing access to n+1 ring expansion of small to large rings. The possibility of directly using propargyl alcohols in one-pot is also described. Mechanistic studies indicated that an azidyl group is a good leaving group and provides a driving force for the 1,2-C migration.
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Affiliation(s)
- Xueying Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University Changchun 130024 China
| | - Zhansong Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University Changchun 130024 China
| | - Jin-Na Song
- School of Life Science, Jilin University Changchun 130012 China
| | - Zikun Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University Changchun 130024 China
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Liu Z, Wang L, Yu T, Sun Y, Chen H, Gao W, Tang B. A bench-stable low-molecular-weight vinyl azide surrogate for a cascade reaction: facile access to novel N-vinyl-1,2,3-triazoles. Org Chem Front 2020. [DOI: 10.1039/d0qo00714e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A novel metal-catalyzed cascade reaction of stable low-molecular-weight vinyl azide surrogate with S-/O-nucleophiles and alkynes was disclosed in a general fashion, thus providing mild and efficient access to various N-vinyl-1,2,3-triazoles bearing new functional groups.
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Affiliation(s)
- Zhenhua Liu
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Lianxiao Wang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Tian Yu
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Yanan Sun
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Huimin Chen
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Wen Gao
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Bo Tang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
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