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Communication | Regular issue | Vol 6, No. 9, 1977, pp.1349-1354
Published online, 1st January, 1970
DOI: 10.3987/R-1977-09-1349
■ Nonclassical Condensed Thiophenes. The Selenolo[3,4-c]thiophene System

Lydia E. Saris and Michael P. Cava*

*Department of Chemistry, University of Pennsylvania, 231 South 34th Street Philadelphia, PA 19104-6323, U.S.A.

Abstract

The first nonclassical selenolothiophenes, namely 1,3-dimethylselenolo[3,4-d]thiophene (1a) and 1,3-dicarbomethoxyselenolo[3,4-c]thiophene (1b), have been generated from appropriate precursors and characterized as trapping products with 1,3-dipolarophiles. These selenolothiophenes are similar to the corresponding thienothiophenes (7a and 7b) in their high reactivity, and consequently less stable than their recently reported selenoloselenophene analogs 7c and 7d.