Halogenation Using Quaternary Ammonium Polyhalides. XXXI. Halogenation of Thiophene Derivatives with Benzyltrimethylammonium Polyhalides.

…, T Kakinami, H Fujimoto, S Kajigaeshi

Index: Okamoto, Tsuyoshi; Kakinami, Takaaki; Fujimoto, Hiroshi; Kajigaeshi, Shoji Bulletin of the Chemical Society of Japan, 1991 , vol. 64, # 8 p. 2566 - 2568

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Citation Number: 31

Abstract

The reactions of thiophene derivatives with benzyltrimethylammonium tetrachloroiodate, benzyltrimethylammonium tribromide, and benzyltrimethylammonium dichloroiodate in acetic acid or in acetic acid–zinc chloride under mild conditions gave chloro-, bromo-, and ...

~88%

~10%

~93%

~33%

~54%

~63%

~78%

~89%

~72%

~96%

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