关键词: 反应机理, 反应速度, 气相色谱, 反应动力学, 醛, 均相催化, 硅氢化反应

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