Tetrahedron Letters

The use of phosphonodithioformates for the synthesis of ketene dithioacetals

A Bulpin, S Masson, A Sene

Index: Bulpin, Andrew; Masson, Serge; Sene, Aboubacary Tetrahedron Letters, 1989 , vol. 30, # 26 p. 3415 - 3418

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Citation Number: 14

Abstract

Abstract Phosphonodithioformates 1 undergo thiophilic addition with both organolithium and Grignard reagents to give metallated dithioacetals of formyl-phosphonates 2, available for protonation, alkylation or use in Wittig-Horner reactions. Oxidation of 1 by meta- chloroperbenzoic acid leads to the corresponding sulphine 4 equally suitable for thiophilic addition.