Organofunctional silanes with more sterically hindered substituents at the
silicon atom than the typical methoxy (ethoxy) group have lately been frequ
ently used as silane coupling agents, in polymer coupling systems, sol-gel
processes and also as interpenetrating polymer network substrates. New and
very efficient synthetic ways leading to organofunctional silanes of the ab
ove type with methacryl, amine, chloro and isocyanato functional groups are
proposed here. Catalytic transesterification and/or alcoholysis of chlorop
ropyltrialkoxysilanes followed by nucleophilic substitution has been employ
ed. Copyright (C) 2001 John Wiley & Sons, Ltd.