Hydrosilation of ａ,β-unsaturated aldehydes

Abstract

Homogeneous catalytic hydrosilylation of a,b-unsatd. aldehydes I (R = H, 3-Cl, 4-Me, 4-MeO) with silanes II (R1 = H, alkyl, Ph, substituted Ph) in the presence of (Ph3P)3RhCl was studied by pseudo 1st order reaction of kinetics and monitored by GC. Rate constants, activation energy and activation entropy were determine The relationship between reactivity and mol. structure of reactants was discussed.

Key words: GAS CHROMATOGRAPHY, REACTION MECHANISM, REACTION RATE, REACTION KINETICS, ALDEHYDES, HOMOGENEOUS CATALYSIS, HYDROSILYLATION

CLC Number:

O643

Cite this article

LI SHUCHUN;XU SHANSHENG;ZHOU XIUZHONG. Hydrosilation of ａ,β-unsaturated aldehydes[J]. Chin. J. Org. Chem., 1992, 12(5): 497-501.

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ａ,β不饱和醛的均相催化氢硅化反应