SCHWEFELVERBINDUNGEN DES ERDÖLS V1 3, 5-DIARYL-2, 4-THIOPHENDICARBONSAURE-DIMETHYLESTER AUS ARYLMETHYLKETONEN

F Boberg, U Puttins, W Schmidt…

Index: Boberg, Friedrich; Puttins, Udo; Schmidt, Wolfgang; Torges, Karl-Franz Phosphorus and Sulfur and the Related Elements, 1983 , vol. 17, p. 135 - 140

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Citation Number: 7

Abstract

Abstract Starting with arylmethylketones a general method to methyl 3, 5-diaryl-2, 4- thiophenedicarboxylates is described. Aryl is phenyl, p-tolyl, 1-and 2-naphthyl and 2-thienyl. Intermediates are aryl substituted sulfur heterocycles: 1, 2-dithiol-3-thiones, 1, 2-dithiol-3- ones, 4-bromo-1, 2-dithiol-3-ones and dimethyl 1, 4-dithiin-2, 5-dicarboxylates. Alcaline saponification of the dimethyl esters gives 3, 5-diaryl-4-methoxy-carbonyl-2- ...