2-Acyl thiazolium salts as selective agents for the O-acylation of aromatic hydroxylamines

…, S Prabhakar, MJ Marcelo-Curto, HS Rzepa…

Index: Ferreira, Luisa M.; Lobo, Ana M.; Prabhakar, Sundaresan; Marcelo-Curto, M. Joao; Rzepa, Henry S.; Yi, Man Yin Journal of the Chemical Society, Chemical Communications, 1991 , # 16 p. 1127 - 1128

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Citation Number: 4

Abstract

2-Acyl-3, 4-dimethylthiazolium triflates, modelled upon the biologically important 2-acyl thiamine derivatives, react in neutral media specifically with the oxygen atom of N-aryl hydroxylami'nes to give rise to tetrahedral intermediates, which collapse to the O-acyl derivatives under mildly basic conditions.