G. Adiwidjaja et al., NEW RESULTS ON THE PREPARATION AND REACTIVITY OF BENZO[C]THIOPHENES, Phosphorus, sulfur and silicon and the related elements, 74(1-4), 1993, pp. 451-452
Preparation of benzo[c]thiophenes with particular substituents on the
benzene or thiophene moiety is described and their cycloaddition, oxid
ation, and reduction reactions are discussed.