β-环糊精催化含二茂铁基羧酸苯酚酯水解动力学的研究——取代基效应的探讨

高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (2): 140.

β-环糊精催化含二茂铁基羧酸苯酚酯水解动力学的研究——取代基效应的探讨

章道道, 梁贵柏

复旦大学化学系

收稿日期:1986-09-10 出版日期:1988-02-24 发布日期:1988-02-24
基金资助:
中国科学院科学基金

Study on the Kinetics of β-Cyclodextrin-Catalyzed Hydrolysis of Phenolic Esters Containing a Ferrocenyl Group——A Probe to the Substituent Effects

Zhang Daodao, Liang Guibai

Department of Chemistry, Fudan University, Shanghai

Received:1986-09-10 Online:1988-02-24 Published:1988-02-24

摘要/Abstract

摘要： 本文测定了2,3,5,6-四氟-4-硝基苯酚等的pK_α值,并将其与β-环糊精催化反式二茂铁丙烯酸或环丙烷羧酸酯所得水解加速程度进行了相关分析。发现由于底物中有取代基的苯氧基未进入β-环糊精的空腔,故取代基对水解加速程度之影响仍能满足线性自由能关系。

Abstract: In this work, we have determined the pK_α valuc of 4-nitro-2, 3, 5, 6-tetrafl-uorophenol and studied the relationship between pK_α and the acceleration rales of β-cyclodextrin-catalyzed hydrolysis of subslituled phcnyl esters of trans-fcrrocenc-acrylic acid and ferrocenylcyclopropanccarboxylic acid.It has been found that the acceleration rates are dependent on the electronic nature of the substituents. It obeys Hammett linear free-energy relationship since the phcnyl. groups of subslratcs do not enter but the fcrroccnyl groups enter the cavities of the β-cyclodextrin.

TrendMD:

章道道, 梁贵柏. β-环糊精催化含二茂铁基羧酸苯酚酯水解动力学的研究——取代基效应的探讨. 高等学校化学学报, 1988, 9(2): 140.

Zhang Daodao, Liang Guibai . Study on the Kinetics of β-Cyclodextrin-Catalyzed Hydrolysis of Phenolic Esters Containing a Ferrocenyl Group——A Probe to the Substituent Effects. Chem. J. Chinese Universities, 1988, 9(2): 140.