title: Condensed thiophenes and selenophenes: thionyl chloride and selenium oxychloride as sulfur and selenium transfer reagents.
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 selenium oxychloride in the presence of base.
authors.affiliation: Chemistry Department, University of Alabama, Box 870336, Tuscaloosa, AL 35487-0336, USA.
authors.forename: Ramiya R
authors.initials: RR
authors.lastname: Amaresh
authors.forename: M V
authors.initials: MV
authors.lastname: Lakshmikantham
authors.forename: Jeffrey W
authors.initials: JW
authors.lastname: Baldwin
authors.forename: Michael P
authors.initials: MP
authors.lastname: Cava
authors.forename: Robert M
authors.initials: RM
authors.lastname: Metzger
authors.forename: Robin D
authors.initials: RD
authors.lastname: Rogers