Tetrahedron

Preparation and photolysis of diaryl esters of acetylenedicarboxylic acid

M Alvaro, H García, MA Miranda, J Primo

Index: Alvaro; Garcia; Miranda; Primo Tetrahedron, 1992 , vol. 48, # 16 p. 3437 - 3444

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Citation Number: 10

Abstract

Two diaryl acetylenedicarboxylates 1 a, b have been prepared in moderate yields by direct reaction of acetylenedicarboxylic acid with the corresponding phenols catalyzed by sulfuric or p-toluenesulfonic acids and also through acetylenedicarbonyl chloride. The accompanying by-products have been characterized. Attempted esterification using N, N′- dicyclohexylcarbodiimide as condensing agent gives an asymmetric ester amide 11a and ...