【摘要】 从铑膦络合物前体、配体和反应条件等 3个方面考察了端辛烯氢甲酰化反应的性质和规律。发现在 5MPa ,140℃ ,以Ph3 PO为配体的实验条件下 ,铑膦络合物前体的催化活性顺序为 :Rh(CO) (PPh3 ) (acac) >[Rh(CH3 COO) 2 ]2 >Rh6(CO) 16。反应温度、压力和膦铑比对端烯烃的氢甲酰化反应有重要影响。反应压力为 8MPa下端辛烯的最佳反应温度为 16 0℃ ;3～ 10MPa内 ,压力对反应起正向影响 ;对于一定催化剂前体和配体组成的催化体系存在在最佳膦铑比。采用端辛烯和端癸烯为底物 ,在Ph2 P(CH2 ) 4PPh2 ,Ph3 P ,(C8H17) 3 PO ,Bu3 PO ,Ph3 PO和Ph3 PS等 6种配体的作用下进行氢甲酰化反应实验 ,发现烯烃与配体之间存在一定的匹配关系。本实验条件下 ,端辛烯最佳适用配体是Ph3 PO ,端癸烯为Bu3 PO。更多还原

【Abstract】 The hydroformylation of 1 octene based on rhodium complex has been investigatedin terms of rhodium precursor,ligand effect and reaction condition of 5MPa ( p (CO)∶ p (H 2)=1∶1),140℃,the activity order of different rhodium precursors is:Rh(CO)(PPh 3)(acac)>[Rh(CH 3COO) 2] 2>Rh 6(CO) 16 .Temperature,pressure of syngas and P/Rh have great effects on the yield of iso nonyl aldehyde.The hydroformylation of l octene or l decene catalysed by rhodium based catalysis system with ligand such as Ph 2P(CH 2) 4PPh 2,Ph 3P,(C 8H 17 ) 3PO,Bu 3PO,Ph 3PO or Ph 3PS has been carried out.The results show that matching relation between reactivity of olefin and stability of Rh catalytic species is of importance to hydroformylation of 1 octene and 1 decene.更多还原