聚氧乙烯基取代膦-铑配合物催化有机单相苯乙烯氢甲酰化反应研究

Organic Monophase Hydroformylation of Styrene Catalyzed by Poly(ethylene oxide)-Substituted Phosphine Rhodium Complex

基于非离子表面活性膦配体的临界溶解温度特性 ,研究了以 Rh Cl3· 3H2 O为催化剂前体、聚氧乙烯基取代膦为配体原位合成的膦铑配合物催化剂 ,对有机单相体系中苯乙烯氢甲酰化反应的催化性能 .考察了反应温度、压力及不同聚氧乙烯基取代膦 -铑配合物催化剂对反应的影响 .以 Rh/PETPP配合物为催化剂时 ,在 T=10 0℃ ,p=6 .0 MPa (CO/H2 =1∶ 1)条件下 ,反应 3.5 h后 ,烯烃转化率和产物醛收率可分别达 96 .7%和 92 .6 %

Poly(ethylene oxide)\|substituted phosphine rhodium complex, prepared in situ from RhCl\-3·3H\-2O and P[ p \|C\-6H\-4O(CH\-2CH\-2O)\-6H] 3(PETPP), can effectively catalyze organic monophase hydroformylation of styrene. Under the conditions of T =100 ℃, p =6.0 MPa, the conversion of styrene and yield of aldehyde are higher than 96% and 92%, respectively. Further studies on the recycling efficiency of catalyst is now in progress.