CATALYTIC ACTIVITY OF BIS(DIALKYLAMINO)CARBENIUM SALTS IN HYDROSILYLATION REACTIONS

Bis(dialkylamino)carbenium salts {[(Me2N)(2)CC]J+}(2)MCl42-(M = Ni, Pd ) and {[Me2NC(X)NR2](+)}(2)PtCl62- (R = Me, All; X = H, Cl, Me) are ef ficient catalysts for hydrosilylation of allyl phenyl ether, triallyla mine, allyl chloride, allylamine, and 1-octene with various hydrosilan es. The catalytic activity is dependent on the salt composition and th e nature of the metal M, the saturated compound, and the hydrosilane u sed. The catalysts used are usually insoluble in the reaction mixture, active, and stable. In some cases, carbenium salts are more selective than Speier's catalyst. Novel catalysts, silica-immobilized dialkylam inocarbenium salts, have been prepared. The kinetics of the reaction h ave been considered.