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STUDIES ON FLUORINE CONTAINING HETEROCYCLIC COMPOUNDS. 4. REACTIONS OF 3-NITRO-4-CHLOROBENZOTRIFLUORIDE AND 3,5-DINITRO-4-CHLOROBENZOTRIFLUORIDE WITH FIVE-MEMBERED HETEROCYCLES

 

作者: Mei-Jin Chen,   Ching-Sung Chi,   Qing-Yun Chen,  

 

期刊: Phosphorus, Sulfur, and Silicon and the Related Elements  (Taylor Available online 1990)
卷期: Volume 54, issue 1-4  

页码: 87-93

 

ISSN:1042-6507

 

年代: 1990

 

DOI:10.1080/10426509008042124

 

出版商: Taylor & Francis Group

 

关键词: Key words:;Heterocycles;organo-fluorine;benzotriazole;thiazole;displacement;S-linked compounds

 

数据来源: Taylor

 

摘要:

The reactions of 3-nitro-4-chlorobenzotrifluoride (1a) and 3,5-dinitro-4-chlorobenzotrifluoride (1b) with heterocycles (2–5) are described. Six S-linked and N-substituted heterocycles (6, 9–11, 13), such as 2-(2-nitro-4-trifluoromethylphenylthio) benzothiazole (9a), were prepared from the reactions of1awith benzotriazole (2). 2-mercaptobenzothiazole (5a) and 2-mercaptobenzoxazole (5b) and from the reactions of1bwith2. 1,2,4-triazole (3) and5ain DMF respectively.1areacted with 2-mercaptothiazoline (4) to give desired product 7 and bis(2-nitro-4-trifluoromethylphenyl) thioether (8), 3-(2-Benzoxazolyl)-2-benzoazolinethione (15) was obtained from the reaction of1bwith5b. The spectral data and elemental analyses were fully in accord with the proposed structures, and the possible mechanisms for these compounds and other by-products were discussed.

 

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