Synthesis of Polyfluorinated Heterocycles by Indirect Fluorination with Silver Fluorides. IV. Fluorothiadiazoles1, 2

H Schroeder, R Rätz, W Schnabel…

文献索引：Schroeder,H. et al. Journal of Organic Chemistry, 1962 , vol. 27, p. 2589 - 2592

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被引用次数: 20

摘要

The reaction of 2, 5-dibromo-l, 3, 4thiadiaeole with silver fluoride gave 2-bronio-5-fluoro-1, 3, 4-thiadiazole and isocyanogen tetrafluoride which was also prepared from the respective tetrabromide. 3-Perfluoroalkyl-5-fluoro-1, 2, 4thiadiazoles were obtained in a two-step synthesis by reaction of perhalogenated alkylamidines with trichloromethanesulfonyl chloride, and fluorination of the reaction products with silver fluoride, in one case with ...