Synthesis

Preparation of Thioflavones via Thiophosphoryl Chloride Mediated Cyclodehydration and Thionation of 1-(2-Hydroxyphenyl)-3-arylpropane-1, 3-diones

…, U Pathak, LK Pandey, MVS Suryanarayana

Index: Vimal, Manorama; Pathak, Uma; Pandey, Lokesh Kumar; Suryanarayana, Malladi V. S. Synthesis, 2011 , # 1 p. 30 - 32

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Abstract

Abstract A simple and convenient one-pot strategy for the preparation of thioflavones from 1, 3-diketones is described. Cyclodehydration of a range of β-diketones and thionation of the resulting flavones was achieved using thiophosphoryl chloride (PSCl 3) which serves as both a catalyst and thionating agent.