Preparation of N-unsubstituted thioamides by a modified Willgerodt-Kindler reaction

QD You, HY Zhou, QZ Wang, XH Lei

Index: You, Qi-Dong; Zhou, Hou-Yuan; Wang, Qi-Zhou; Lei, Xing-Han Organic Preparations and Procedures International, 1991 , vol. 23, # 4 p. 435 - 438

Full Text: HTML

Citation Number: 9

Abstract

Thioamides are very useful intermediates' for organic synthesis and are prepared mainly a) by the reaction of amides with phosphorous pentasulfide2 or Lawesson reagent3, b) by the Willgerodt-Kindler reaction4 and c) by the reaction of nitriles or cyanogen with hydrogen sulfide! Among these, the Wdgerodt-Kindler reaction is the better and more convenient procedure, for the preparation of thioamides from aromatic aldehydes or ketones by ...