摘要
报导了以Ｒｈ２ＡｃＯ４为催化剂前体，以吡啶、三乙胺为配位体，丙酮、乙醇为溶剂的烯烃羰基化一步合成醇新催化剂体系的实验结果，结果表明．以含氮化合物替代膦作为配位体，也能获得较好的醇收率（６７％）。实验结果还表明，配位体的碱性越强，越有利于醇的生成。还考察了Ｒｈ２ＡｃＯ４／Ｂｕ３Ｐ／ＣＨ３ＣＯＣＨ３催化体系，发现烯烃羰基化制醇，是经由烯烃醛化这一步中间过程的，烯烃→醛→醇是一连串反应，而烯烃加氢生成烷烃则为与之平行的副反应，该副反应可由提高膦配体用量而抑制。
he new catalysts for one-step oxosynthesis of alcohol from olefin are presented in the paper. Rh2AcO4 in pyridine or thiethylamine ligands, with acetone and ethanol as solvent,was effective for olefin hydroformy lation to give alcohol with a better yield of 57%. The yield of alcohol was increased with the alkalinity of the ligands rising. The formation of alcohol by carbonylation of olefin,concluded by correlating the concentration of reactants and products with time in Rh2AcO4/Bu3P/CH3COCH3 catalytic system, proceeds through the hydrogenation of aldehyde. The formation of alcohol from olefin is a consecutive reaction. However,the formation of alkane from olefin is a paralled reaction against the production of alcohol.
出处
《天然气化工—C1化学与化工》
CAS
CSCD
北大核心
1995年第3期33-35,共3页
Natural Gas Chemical Industry
基金
中科院上海有机化学所金属有机开放室
中科院福建物质结构研究所结构化学国家重点实验室
南京大学配位化学
关键词
铑
催化剂
羰基化反应
醇
烯烃
rhodium catalyst
pyridine
triethylamine
one-step oxosynthesis of alcohol
