Fluoride-free Hiyama cross-coupling reactions of phenyltrimethoxysilane with aryl halides were performed in
water using sodium hydroxide as the activator at 110 °C. The reactions, catalyzed by PVP stabilized colloidal palladium
nanoparticles, show enhanced rate under microwave heating and proceed quickly (6 min).The progress of the reactions
was monitored by GC-MS and parameters such as catalyst concentration, effect of base, recyclability etc. were investigated.
Excellent yields were obtained with a variety of substrates and the products, after isolation, were characterized by
Keywords: Hiyama cross-coupling, Microwave heating, Pd (0)–PVP Nanoparticles, Reaction catalyzed.
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