Synthesis 2004(13): 2131-2134  
DOI: 10.1055/s-2004-829187
PAPER
© Georg Thieme Verlag Stuttgart · New York

A Simple Synthesis of Angular Anthrathiophenediones via Acetylenic Derivatives of Anthraquinone

Irena D. Ivanchikova, Nadezhda I. Lebedeva, Mark S. Shvartsberg*
Institute of Chemical Kinetics and Combustion, Siberian Branch of Russian Academy of Sciences, Novosibirsk 630090, Russia
Fax: +7(383)2342350; e-Mail: shvarts@kinetics.nsc.ru;
Further Information

Publication History

Received 24 February 2004
Publication Date:
30 July 2004 (online)

Abstract

Condensation of 2-alkynyl-1-chloro- and 1-alkynyl-2-chloroanthraquinones with Na2S under mild conditions afforded anthra[1,2-b]thiophene-6,11-diones and anthra[2,1-b]thiophene-6,11-diones, respectively. A variety of angular anthrathiophenediones was synthesized by this method. The acetylenic precursors were prepared by a modified procedure of the Sonogashira reaction.