Abstract
(2,5-dimethyl-3,4-diphenyl)phenyl-triethoxysilane (DDPTES) and (2,5-dimethyl-3,4-diphenyl)phenyl-heptamethylcyclotetrasiloxane (DDPHMCTS) were synthesized by Diels-Alder reaction of 2,5-dimethyl-3,4-diphenylcyclopentadienone (DDCP) with vinyl-triethoxysilane (VTES) and vinyl-heptamethylcyclotetrasiloxane (VHMCTS) respectively. The structures of these two products have been characterized by IR, 1HNMR and elemental analysis.