新型水溶性膦配体用于烯烃氢甲酰化反应的研究  

Study on Novel Water Soluble Phosphine Ligands for Olefins Hydroformylation

作　　者：王定博[1] 周宏英[1] 杨世琰[1] 李树本[1] 

机构地区：[1]中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室,甘肃兰州730000

出　　处：《分子催化》2001年第1期51-55,共5页Journal of Molecular Catalysis(China)

摘　　要：介绍了 4个水溶性膦配体的合成过程 ,并研究了 4个配体分别与乙酰丙酮二羰基铑构成的催化剂在水 -有机两相体系中 ,在不同条件下对 1-庚烯、苯乙烯和丙烯酸甲酯的氢甲酰化反应的催化性能 .结果表明 ,这 4个配体在水中的溶解性很好 ,并且有一定的稳定性 ;在温度为 5 0℃、压力为 5 .0 MPa、P/ Rh为 8、 [Rh]为 1.6×10 - 3mol/ L的条件下 ,苯乙烯的转化率可达 10 0 %、产物的 n/ i为 9.2 ;在相同条件下 ,1-庚烯的转化率可达99.3%、 n/ i为 2 .2 ;丙烯酸甲酯的转化率可达 92 .7%、 n/ i为 6 .3;α-甲基丙烯酸甲酯的转化率可达 73.0 %、 n/ i为 5 .Four novel water soluble phosphine ligands have been synthesized. Under water/organic biphasic systems, catalytic activity of Rh(acac)(CO) 2 with four different ligands in hydroformylation of 1 heptene, styrene and methyl acrylate have been studied. The results indicate that high yields and selectivities of aldehyde were obtained. The conversion of styrene is 100% with 9.2∶1 ratio of i/n products at 50 ℃, 5.0 MPa, P/Rh=8, [Rh]=1.6×10 -3 mol/L. The conversions of methyl acrylate methyl α methacrylate and 1 heptene were 99.3% with 2.2∶1 ratio of n/i products, 92.7% with 6.3∶1 ratio of i/n product, 73.0% with 5.5∶1 ratio of i/n products, respectively under the same reaction conditions.

关 键 词：水溶性膦酯体 两相氢甲酰化 烯烃 催化反应 催化性能 铑配合物催化剂 

分 类 号：O621.256.1[理学—有机化学] O643.36[理学—化学]