Condensed thiophenes and selenophenes: Thionyl chloride and selenium oxychloride as sulfur and selenium transfer reagents

RR Amaresh, MV Lakshmikantham…

Index: Amaresh, Ramiya R.; Lakshmikantham; Baldwin, Jeffrey W.; Cava, Michael P.; Metzger, Robert M.; Rogers, Robin D. Journal of Organic Chemistry, 2002 , vol. 67, # 8 p. 2453 - 2458

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Citation Number: 36

Abstract

3, 4-Cyanomethyl substituted thiophenes reacted with thionyl chloride in the presence of base to give dicyano substituted thieno (3, 4-c) thiophenes. The use of selenium oxychloride furnished the corresponding cyano substituted seleno (3, 4-c) thiophene. 1, 2- Phenylenediacetonitriles gave the corresponding cyano substituted benzo (c) thiophenes and benzo (c) selenenophenes, respectively, upon reaction with thionyl chloride and ...