铑-膦配位催化烯烃氢甲酰化反应研究  

HYDROFORMYLATION OF OLEFIN CATALYZED BY RHODIUM-PHOSPHINE COMPLEXES

作　　者：张寿春 陈华[1] 李瑞祥[1] 黎耀忠[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：《化学研究与应用》2001年第3期273-276,共4页Chemical Research and Application

基　　金：国家重大基础研究专项经费资助! (2 0 0 0 480 0 8)

摘　　要：本文研究了由Rh2 (CO) 4Cl2 分别与两种膦配体 4 正丁苯基二苯基膦 (1)和 4 正辛苯基二苯基膦 (2 )形成的原位催化剂体系对烯烃氢甲酰化反应的催化性能。对影响反应的各种因素 ,如P/Rh物质的量比、反应温度、反应压力 ,不同烯烃等的影响作了探讨。结果表明 ,配体 1、2与Rh2 (CO) 4Cl2 形成的原位催化剂体系的催化活性与选择性均高于结构相似的PPh3 ,在相同的条件下 ,不同烯烃的氢甲酰化反应活性依直链烯烃 >苯乙烯 >直链内烯 >This paper studied the catalytic propesties of the catalysts in situformed by Rh 2(CO) 4Cl 2 and 4 butylphenyl diphenylphosphine (1) and/or 4 octyl phenyl diphenylphosphine (2) for the hydroformylation of 1 hexene.The influence of various parameters,such as the molar ratio of rhodium to phosphine,the reaction temperature and pressure on the hydroformylation were investigated.As ligand,phosphine 1 and 2 exhibited higher activity and selectivity than triphenylphosphine.This may be attributed to the electronic and steric effects of alkyl group on the aromatic ring.When using Rh 2(CO) 4Cl 2 as catalytic precursor and 1 as ligand,the rate of hydroformylation of various olefins decreased in following order:terminal olefin>styrene>internal olefin>Cyclohexene.

关 键 词：烯烃 氢甲酰化反应 铑-膦配位催化剂 催化活性 

分 类 号：O623.12[理学—有机化学] O643.361[理学—化学]