Bhanu Chauhan

NEW NEUTRAL CARRIER-TYPE ION SENSORS. CROWN ETHER DERIVATIVES OF POLY(METHYLHYDROSILOXANE)

Abstract A facile one step synthesis of poly(methylalkoxy-crownether)siloxanes has been achieved by dehydrogenative alkoholysis of PMHS (polymethylhydrosiloxane) catalyzed by a Rh(I) complex.

Dehydrogenative condensation of SiH and SH bonds. A metal-catalyzed protocol to stable thiopolysiloxanes

Abstract Dehydrocoupling of polyhydrosiloxanes with thiols proceeded smoothly in the presence of Wilkinsons catalyst to furnish polythioethers in high yields under mild conditions. The process is free of rearrangement and cross-linking reactions.

Facile and Effective Synthesis of Siloxane-Based Polyamines

Linear and cyclic polysiloxanes with pendant amine moieties have been synthesized via the [(C 6 H 5 ) 3 P] 3 RbCl-catalyzed dehydrogenative alcoholysis of poly(methylhydrosiloxane) (PMHS) or cyclotetra(methylthydrosiloxane) (D4H) with hydroxyalkylamines.

A new catalyst for exclusive β-hydrosilylation of acrylonitrile

Abstract Acrylonitrile and 2-chloroacrylonitrile react with trichlorosilane in the presence of cobalt chloride and an amine to give the β-adduct in 75–95% yields under mild conditions.