Journal of Fluorine Chemistry

A widely varying range of products in reactions of C 6 F 5 BrF 2, C 6 F 5 IF 2, and C 6 F 5 IF 4 with Lewis acids of different strength

HJ Frohn, F Bailly, D Welting, VV Bardin

Index: Frohn, Hermann-Josef; Bailly, Frank; Welting, Dirk; Bardin, Vadim V. Journal of Fluorine Chemistry, 2009 , vol. 130, # 3 p. 301 - 307

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Citation Number: 5

Abstract

The relative fluoride donor ability: C6F5BrF2> C6F5IF2> C6F5IF4 was outlined from reactions with Lewis acids of graduated strength in different solvents. Fluoride abstraction from C6F5HalF2 with BF3· NCCH3 in acetonitrile (donor solvent) led to [C6F5HalF·(NCCH3) n][BF4]. The attempted generation of [C6F5BrF]+ from C6F5BrF2 and anhydrous HF or BF3 in weakly coordinating SO2ClF gave C6F5Br besides bromoperfluorocycloalkenes ...

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