6, 6-Dimethyl-6-silafulvene generated from (allyl)(cyclopentadienyl) dimethylsilane reacts with a trapping reagent such as methanol, benzaldehyde, and benzophenone to give (cyclopentadienyl)(methoxy) dimethylsilane, 6-phenylfulvene, and 6, 6-diphenylfulvene, respectively. Without a trapping reagent, the silafulvene undergoes dimerization.