二氧化硅负载聚（丙烯腈－乙烯基三乙氧基硅）钯（Ⅱ）络合物对羰基氢化还原成甲基或亚甲基的催化研究

Catalytic Study on Hydrogenation of Carbonyl Group into Methylene or Methyl Group by Silica-supported Poly(acrylonitrile-vinyltriethoxysilicon)Palladium(Ⅱ)Complex

二氧化硅负载聚（丙烯腈－乙烯基三乙氧基硅）钯（Ⅱ）络合物在温和条件下能将醛酮中羰基高转化率地催化氢化还原成甲基或亚甲基。考察了Ｎ／Ｐｄ比、反应温度、底物浓度和催化剂用量与起始吸氧速度的关系。

The catalytic hydrogenation of carbonyl group in aldehydes and ketones into methylene or methyl by silica-supported poly(acrylonitrile-vinyltriethoxysilicon)palladuim (Ⅱ)complex could be conducted in mild condition.The effect of the amount of eatalyst,reaction temperature,N/Pd mole ratio,solvent and substrate concernation on the activity of title complex was studied.The title complex catalyst can be reused.The selectivity of title complex for hydrosenation of aldehyde and ketone into alcohol or hydrocarbon was preliminarily studied.