28229-56-3Relevant articles and documents
Effect of catalysts on the reaction of allyl esters with hydrosilanes
Belyakova,Pomerantseva,Efimova,Chernyshev,Storozhenko
experimental part, p. 728 - 733 (2011/01/05)
The reaction of hydrosilylation of allyl esters XOCH 2CH=CH 2 (X = MeCO, CF 3CO, C 3F 7CO) and PhOCH 2CH=CH 2 with hydrosilanes HSiY 3 (Y = Cl, OEt) in the presence of the Speier catalyst, the Speier catalyst with additives, and of various nickel complexes was studied. The catalytic hydrosilylation reaction in the presence of the Speier catalyst is accompanied by the reduction. Additives to the Speier catalyst (vinyltriethoxysilane and some ethers) allow to suppress considerably the reduction reaction. In the presence of the studied nickel complexes mainly reduction and isomerization reactions occurred. The best nickel catalysts of hydrosilylation were the mixtures of NiCl 2 or Ni(acac) 2 with phosphine oxides. In contrast to allyl esters, the hydrosilylation of simple olefins proceeds easier, the content of the product of hydrosilylation in the reaction mixture reaches 94.3%. Pleiades Publishing, Ltd., 2010.
Catalytic activity of bis(dialkylamino)carbenium salts in hydrosilylation reactions
Chernyshev,Belyakova,Sheludyakov,Shevchenko
, p. 1003 - 1006 (2007/10/03)
Bis(dialkylamino)carbenium salts {[(Me2N)2CCl]+}2MCl4 2- (M = Ni, Pd) and {[Me2NC(X)NR2]+}2PtCl62- (R = Me, All; X = H, Cl, Me) are efficient catalysts for hydrosilylation of allyl phenyl ether, triallylamine, allyl chloride, allylamine, and 1-octene with various hydrosilanes. The catalytic activity is dependent on the salt composition and the nature of the metal M, the saturated compound, and the hydrosilane used. 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 dialkylaminocarbenium salts, have been prepared. The kinetics of the reaction have been considered.
