Hydrosilylation of alkenes catalyzed with Rh(PPh3)(3)Cl/organic molten salt

作者：Li Jia-Yun^*; Peng Jia-Jian; Wu Hui; Bai Ying; Qiu Hua-Yu; Jiang Jian-Xiong; Lai Guo-Qiao

来源：Acta Chimica Sinica, 2008, 66(9): 1009-1014.

• Rh(PPh3)(3)Cl
• dialkylimidazolium hexafluorophosphate
• N-alkylpyridinium hexafluorophosphate
• hydrosilylation
• triethylsilane

The activity and selectivity influenced by Rh(PPh3)(3)Cl/dialkylimidazolium hexafluorophosphate or N-alkylpyridinium hexafluorophosphate have been investigated in the hydrosilylation of olefin with triethylsilane. It was found that both conversion and selectivity to beta-product could be improved, but the selectivities to alpha-product and unsaturated product decreased by using this catalyst. The Rh(PPh3)(3)Cl/C16PyPF6 exhibited the highest selectivity to beta-product in the hydrosilylation of styrene by triethylsilane. The conversion of styrene was 95.7%, the selectivity to beta-product was 87.8%, the selectivity to alpha-product was 0.001%, and the selectivity to unsaturated product was 9.2%. At the same time, this catalyst might be reused more than seven times without noticeable loss of its catalytic activity.

• 出版日期2008-5-14
• 单位杭州师范大学