PHOTOOXYGENATION OF SILACYCLOPENTADIENES: A NOVEL OXYGENATION PRODUCT, 2,4-DIOXA-3-SILABICYCLOHEPT-6-ENE, AND ITS CYCLOREVERSION REACTIONS
Photooxygenation of 1,1-dimethyl-2,3,4,5-tetraphenyl-1-silacyclopentadiene afforded 2,4-dioxa-3-silabicyclohept-6-ene(III) together with dibenzoylstilbene.The former was converted to isodidesyl and didesyl by treatment on alumina.Valence bond isome