Bulletin of the Chemical Society of Japan

Preparation of perfluoroalkylated benzoheterocyclic compounds using hexafluoro-1, 2-epoxypropane.

N Ishikawa, S Sasaki

Index: Ishikawa,N.; Sasaki,S. Bulletin of the Chemical Society of Japan, 1977 , vol. 50, p. 2164 - 2167

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Citation Number: 35

Abstract

Utilizing the high reactivity of hexafluoro-1, 2-epoxypropane (HFPO, hexafluoropropylene oxide), several new benzoheterocyclic compounds containing CF 3 and C 2 F 5 were prepared as follows:(1) 2-(pentafluoroethyl) benzoxazoles by treating 2-aminophenols with HFPO/Et 3 N, followed by dehydrating cyclization,(2) 3-(trifluoromethyl) 2H-1, 4-benzoxazin- 2-ones, 3-(trifluoromethyl)-2 (1H)-quinoxalinone and 2-fluoro-2-(trifluoromethyl)-2, 3- ...