A class of compounds which may be of broad interest is that of the perhydro-l, 2-~ yclopentanophenanthrene ring system that has a silicon atom incorporated into the ring. Compounds which may serve as precursors to such derivatives are the benzosilacycloalkenes. Only two compounds containing the benzosilacycloalkene nucleus, 2: 3-benzo-1, l-diphenyl-l-silacyclohex-2-en-4-one (2, 3-dihydro-l, l-diphenyl-4H-l- ...
