Environmentally benign preparation of heteroaromatics from ketones or alcohols, with macroporous polystyrenesulfonic acid and (diacetoxyiodo) benzene, followed …

M Ueno, H Togo

Index: Ueno, Makoto; Togo, Hideo Synthesis, 2004 , # 16 p. 2673 - 2677

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Citation Number: 39

Abstract

Abstract An operationally simple, efficient, and environmentally benign preparation of heteroaromatics such as thiazoles, imidazoles, and imidazo [1, 2-a] pyridines from the reactions of a polymer-supported [hydroxy (sulfonyloxy) iodo] benzene (2) with ketones or alcohols, followed by treatment with thioamides, benzamidine, and 2-aminopyridine, respectively, in the presence of potassium carbonate were successfully carried out.