长链烷基二苯基膦-铑配合物催化烯烃氢甲酰化反应研究  

Olefin Hydroformylation Catalyzed by Long-chain Alkyl Diphenylphosphine-Rhodium Complexes

作　　者：陈骏如[1] 陈华[1] 黎耀忠[1] 程溥明[1] 李贤均[1] 

机构地区：[1]四川大学化学学院有机金属络合催化研究所,四川成都610064

出　　处：《分子催化》2001年第6期413-415,共3页Journal of Molecular Catalysis(China)

基　　金：国家自然科学基金和中国石化集团公司联合资助"九.五"重大项目 ( No:2 9792 0 74) ;国家重点基础研究专项经费资助项目 ( No. G2 0 0 0 0 480 0 8

摘　　要：研究了烷基二苯基膦 -铑配合物 Rh Cl(CO) (n- C8H1 7PPh2 ) 2 (1)和 Rh Cl(CO) (n- C1 2 H2 5PPh2 ) 2 (2 )对 1-辛烯氢甲酰化反应的催化性能 .结果表明 ,配合物 1比 2具有更高的催化活性 ,而配合物 2对生成正构醛的选择性更好 ;当催化剂浓度或膦 /铑比增加时 ,配合物 2催化生成正构醛的选择性呈下降趋势 ,显示出与以The catalytic performance of long chain alkyl diphenylphosphine rhodium complexes, \{RhCl\|\}(CO)( n C\-8H 17 PPh\-2)\-2(1) and RhCl(CO)( n C\-\{12\}H 25 PPh\-2)\-2(2), in hydroformylation of 1 octene were studied. Both 1 and 2 show good performance for hydroformylation of 1 octene, however, complex 1 exhibits higher activity, and complex 2 is more selective to the form ation of linear aldehyde. The increase of catalyst concentration is favorable to the conversion of 1 octene to aldehyde, but results in lower regioselectivity for linear aldehyde. In contrast to the performance of PPh\-3, the increase of molar ratio of phosphine to rhodium causes the decrease of regioselectivity for linear aldehyde when using 2 as the catalyst precursor.

关 键 词：氢甲酰化反应 烷基二苯基膦 铑配合物 1-辛烯 催化剂 催化性能 

分 类 号：O623.121[理学—有机化学] O643.36[理学—化学]