Bromothiophene reactions. I. Friedel??crafts acylation

MJ Del Agua, AS Alvarez??Insúa…

Index: Agua, M. J. del; Alvarez-Insua, A. S.; Conde, S. Journal of Heterocyclic Chemistry, 1981 , vol. 18, p. 1345 - 1347

Full Text: HTML

Citation Number: 10

Abstract

Abstract Friedel-Crafts acylation of 2, 5-dibromo-and 2, 3, 5-tribromothiophenes with different acyl chlorides and anhydrous aluminium trichloride has been studied. The reaction afforded a mixture of acyl derivatives and tetrabromothiophene. The results obtained suggest a mechanism which involves the formation of bromine cations in the reaction medium. Several products obtained in this reaction are described.