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硫酸盐水合物催化下的酯化反应——取代醇与乙酸反应的动力学
Esterification Reations Catalyzed by Hydrated Sulphate Salts
【摘要】 测定了在不同硫酸盐水合物催化下取代醇与乙酸反应的速率常数,给出了包括取代基极性和催化剂效应两项贡献的催化线性自由能方程:lg[kR(M)/K0(M)]=M′σ*+ym
【Abstract】 Kinetic mensurement has been carried in the esterification reaction of a series of substituted alcohols with acetic acid in present of hydrated sulphate salts. The system can be described with Taft equation lg [k/k0] = ρ*σ*. The following Linear Free Energy Equation is presented:lg(kR(M) /k0(M)= ρM’σ*Where kR(M) is the rate constant of the esterification reaction of substituted alcohol catalyzed by hydrated sulphate salts of M metal,k0(M) is the rate constant of ethanol with acetic acid catalyzed by the salts of M metal. ρM’ includes both the polar effects of substituents and the effects of catalyst.
【关键词】 硫酸盐水合物催化剂;
酯化反应;
速率常数;
线性自由能方程;
【Key words】 esterification; hydrated sulphate salts; rate constant; Linear Free Energy Equation.;
【Key words】 esterification; hydrated sulphate salts; rate constant; Linear Free Energy Equation.;
- 【文献出处】 吉林大学自然科学学报 ,Journal of Jilin University , 编辑部邮箱 ,1988年01期
- 【被引频次】1
- 【下载频次】69