多齿胺膦钌配合物催化苯乙酮的氢转移氢化
Hydrogen TransFer Hydrogenation of Acetophenone by Ruthenium Complexes Containing Polydentate Aminophosphine Ligand
摘要
利用C2-对称的双胺双膦钌（Ⅱ）配合物ruCl2（P2n2H4）为催化剂，研究了苯乙酮的氢转移还原反应.在苯乙酮、钌配合物和异丙氧基钾的摩尔比为200∶1∶12的条件下，于65℃反应2H后，苯乙酮的转化率高达99%.讨论了苯乙酮的氢转移氢化机理. The catalytic hydrogen transFer hydrogenation of acetophenone using C 2 symmetric diamine/diphosphine ruthenium(Ⅱ) complex has been studied.Complex RuCl 2(P 2N 2H 4) shows an excellent catalytic activity in hydrogen transFer hydrogenation of acetophenone in a molar ratio of substrate/Ru/ iso PrOK 200∶1∶12, leading to 2 phenylethanol in 99% yield aFter 2 h.A hydrogen transFer mechanism is also discussed.