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Chemical Research in Chinese Universities ›› 1988, Vol. 4 ›› Issue (2): 61-66.

• Articles • Previous Articles     Next Articles

Studies on the Hydrosilation of Aromatic Aldehydes

Geng Bolin1, Xu Shansheng1, Huang Changhua1, Zhou Xiuzhong1, Wang yongtai2, Lin Chui2   

  1. 1. Department of Chemistry, Nankai University, Tianjin;

    2. Central Laboratory, Nankai University, Tianjin
  • Received:1987-07-05 Online:1988-04-24 Published:2011-09-09

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Abstract: The dependence of reactivity on molecular structure in hydro-silation of aromatic aldehydes catalyzed by (PPh3)3 RhCl was studied by "IN SITU" FT-IR technique and a plausible mechanism was proposed.The results show that: (1) Model reaction Ⅰ, Ⅱ and Ⅲ are all characterized by an induction period; (2) The reaction constant of model reaction Ⅰ is +1.57, so the rare of reaction Ⅰ is increased by the electron-withdrawing groups; (3) The rate of model reaction Ⅲ decreases when the size of R1 becomes larger; (4) The reaction constant of model reaction Ⅲ is -0. 50, so the rate of it is increased by electron-donating groups.

Key words: IN SITU FT-IR, Homogeneous catalysis, Hydrosilation, Reactivity and structure