K-region oxides and imines of benzo[b]phenanthro[2,3-d]thiophene and benzo[b]phenanthro[3,2-d]thiophene

Article abstract of DOI:10.1002/jhet.5570300611

The syntheses of the K-oxides and K-imine derivatives of benzo[b]phenanthro[3,2-d]thiophene and benzo-[b]phenanthro[3,2-d]thiophene are described. The parent hydrocarbons 1 and 2 were oxidized with osmium tetroxide and sodium metaperiodate, and the dialde