Isolation and Reaction of Selenobenzophenones

Abstract
4,4′-Dimethoxy- and 4,4′-dimethylselenobenzophenones could be isolated in moderate yields by the reaction of the corresponding ylides with selenium. Their spectral data are described. The oxidaion of these compounds with mCPBA afforded the corresponding benzophenones in good yields. Attempted isolation of unsubstituted selenobenzophenone afforded only its dimer.