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Chen Z, Chen S, Qiu Z, Lin B, Yao Y, Yang F, Weng Z. Synthesis of 2-(Trifluoromethyl)-[1,2,4]triazolo[5,1- a]isoquinoline via Cycloaddition of C, N-Cyclic Azomethine Imine with CF 3CN. J Org Chem 2024; 89:7163-7168. [PMID: 38721654 DOI: 10.1021/acs.joc.4c00557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
A [3 + 2] cycloaddition of C,N-cyclic azomethine imine with in situ-generated CF3CN for the construction of 2-(trifluoromethyl)-[1,2,4]triazolo[5,1-a]isoquinoline is reported. Remarkably, this process shows a broad substrate scope with excellent functional group tolerance, which is scalable and enables a practical route to a library of 2-(trifluoromethyl)-[1,2,4]triazolo[5,1-a]isoquinoline derivatives in moderate to good yields.
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Affiliation(s)
- Zhezuo Chen
- Fujian Provincial University Engineering Research Center of Green Materials and Chemical Engineering, and Fujian Engineering Research Center of New Chinese Lacquer Material, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
| | - Shouxiong Chen
- Fujian Provincial University Engineering Research Center of Green Materials and Chemical Engineering, and Fujian Engineering Research Center of New Chinese Lacquer Material, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China
| | - Zhanyan Qiu
- Fujian Provincial University Engineering Research Center of Green Materials and Chemical Engineering, and Fujian Engineering Research Center of New Chinese Lacquer Material, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China
| | - Bo Lin
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Yunfei Yao
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Fafu Yang
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
| | - Zhiqiang Weng
- Fujian Provincial University Engineering Research Center of Green Materials and Chemical Engineering, and Fujian Engineering Research Center of New Chinese Lacquer Material, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou 350108, China
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Gu J, Li X, Zhang Y, Sun Z, Li L, Meng J, Xing R, Shi X, Fu Y, Wang L, Guo R. K 2CO 3-Catalyzed (3 + 2) Cycloaddition Reaction of N-2,2,2-Trifluoroethylisatin Ketimines with Azodicarboxylates: Access to Spirooxindoles Containing Trifluoromethyl-1,2,4-triazolines. J Org Chem 2024; 89:2364-2374. [PMID: 38325879 DOI: 10.1021/acs.joc.3c02377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Potassium carbonate-catalyzed (3 + 2) cycloaddition reaction between N-2,2,2-trifluoroethylisatin ketimines and azodicarboxylates has been developed, constructing a series of novel N-heterocycle infused spirooxindoles in good to excellent yields (up to 98%) under milder conditions. The presence of both biologically active oxindole and trifluoromethyl-1,2,4-triazoline moieties in these novel spirocyclic compounds would provide new lead structures in the discovery of heterocyclic compounds with potential pharmaceutical activities.
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Affiliation(s)
- Jianmin Gu
- Department of Medicinal Chemistry, School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, P. R. China
| | - Xiaojing Li
- Department of Medicinal Chemistry, School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, P. R. China
| | - Yabo Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, P. R. China
| | - Zenghui Sun
- Department of Medicinal Chemistry, School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, P. R. China
| | - Lin Li
- Department of Medicinal Chemistry, School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, P. R. China
| | - Jing Meng
- Department of Medicinal Chemistry, School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, P. R. China
| | - Ruijuan Xing
- Department of Medicinal Chemistry, School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, P. R. China
| | - Xiaowei Shi
- Department of Medicinal Chemistry, School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, P. R. China
| | - Yan Fu
- Department of Medicinal Chemistry, School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, P. R. China
| | - Lei Wang
- Department of Medicinal Chemistry, School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, P. R. China
- Hebei Province Key Laboratory of Innovative Drug Research and Evaluation, Shijiazhuang 050017, P. R. China
| | - Ran Guo
- Department of Medicinal Chemistry, School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, P. R. China
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Yao Y, Lin B, Wu M, Zhang Y, Huang Y, Han X, Weng Z. Synthesis of 2-trifluoromethyl thiazoles via [3 + 2] cycloaddition of pyridinium 1,4-zwitterionic thiolates with CF 3CN. Org Biomol Chem 2022; 20:8761-8765. [DOI: 10.1039/d2ob01749k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A [3 + 2] cycloaddition of pyridinium 1,4-zwitterionic thiolates with CF3CN for the synthesis of 2-trifluoromethyl 4,5-disubstituted thiazoles is reported.
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Affiliation(s)
- Yunfei Yao
- Fujian Engineering Research Center of New Chinese lacquer Material, College of Materials and Chemical Engineering, Minjiang University, Fuzhou, 350108, China
- Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Bo Lin
- Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Minze Wu
- Fujian Engineering Research Center of New Chinese lacquer Material, College of Materials and Chemical Engineering, Minjiang University, Fuzhou, 350108, China
| | - Yafang Zhang
- Fujian Engineering Research Center of New Chinese lacquer Material, College of Materials and Chemical Engineering, Minjiang University, Fuzhou, 350108, China
| | - Yangjie Huang
- Fujian Engineering Research Center of New Chinese lacquer Material, College of Materials and Chemical Engineering, Minjiang University, Fuzhou, 350108, China
| | - Xiaoyan Han
- Testing and Analysis Center, Soochow University, Suzhou 215123, China
| | - Zhiqiang Weng
- Fujian Engineering Research Center of New Chinese lacquer Material, College of Materials and Chemical Engineering, Minjiang University, Fuzhou, 350108, China
- Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
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