论文部分内容阅读
水溶性磺化三苯膦铑配合物担载在SiO_2表面制得的负载化水溶性Wilkinson催化剂具较大的比表面积,当1-己烯、1-辛烯、1-庚烯和十一烯酸甲酯等液态高碳烯烃在这种催化剂上于固定床加压流动态反应器中连续进行氢甲酰化催化反应时,产物醛的选择性98～100%,并可在适当过量配体存在下保持较高的催化活性.在这种催化剂上分别于CO用/H_2和CO/D_2气氛下进行烯烃氢甲酰化反应,可观察到显著的氘逆同位素效应.根据分析,初步认为酰基物中间体氢解反应可能是SiO_2负载的磺化三苯膦铑配合物催化剂上高碳烯氢甲酰化的速控步骤.
Water-soluble sulfonated triphenylphosphine rhodium complex supported on the surface of the SiO 2 supported water-soluble Wilkinson catalyst has a larger specific surface area, when 1-hexene, 1-octene, 1-heptene and undecene When the liquid high-carbon olefin such as methyl ester and the like are continuously subjected to the hydroformylation catalytic reaction on this catalyst in a fixed bed pressurized-flow dynamic reactor, the selectivity of the product aldehyde is 98 to 100% In the presence of CO catalyst in the presence of CO with / H 2 and CO / D 2 atmosphere olefin hydrogenation reaction can be observed significant deuterium reverse isotope effect.According to the analysis, that the acyl The intermediate hydrogenolysis may be the rate-controlling step for the carbene hyperosylation on the SiO 2 -supported sulfonated triphenylphosphine rhodium complex catalyst.