Synthesis

Perfluoroalkanesulfonic acid catalyzed acylations of alkylbenzenes: Synthesis of alkylanthraquinones

F Effenberger, F Buckel, AH Maier, J Schmider

Index: Effenberger; Buckel; Maier; Schmider Synthesis, 2000 , # 10 p. 1427 - 1430

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Citation Number: 7

Abstract

Abstract: The acylation of alkylbenzenes 1 with benzoyl chloride 2 and catalytic amounts of perfluorobutanesulfonic acid affords the corresponding 2-, 3-, and 4-alkylbenzophenones 3 with unusually high amounts of ortho products. Surprisingly, even tert-butylbenzene reacts under these reaction conditions without any acid catalyzed dealkylation. The yield of benzoylation of p-xylene 4 with benzoic acid in the presence of 5 mol% C4F9SO3H to ...