KINETICS OF THE FORMATION AND HYDROLYSIS OF THE SCHIFF-BASE OF PYRIDOXAL 5'-PHOSPHATE WITH HEXYLAMINE IN WATER DIOXANE

被引：8

作者：

DELPINO, IMP ^{[1
]}

LLOR, J ^{[1
]}

SANCHEZRUIZ, JM ^{[1
]}

机构：

[1] UNIV GRANADA,FAC CIENCIAS,DEPT QUIM FIS,E-18071 GRANADA,SPAIN

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 | 1993年 / 03期

关键词：

D O I：

10.1039/p29930000581

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The rate constants of the reaction between pyridoxal 5'-phosphate and hexylamine have been studied as a function of pH, in water-dioxane mixtures, at 25-degrees-C, and at an ionic strength of 0.01. We have found that both the solvent effect and the intramolecular acid catalysis effect on the rates of formation, can be acceptably described on the basis of a log k1i, versus (pK(Pi) - pK(A1)) correlation. k1i = rate constant for the reaction between free hexylamine and the ionic species of pyridoxal 5'-phosphate with i bound protons (P(i)); pK(Pi) = pK value of the P(i) species; pK(A1) = pK value of the hexylammonium ion.

引用

页码：581 / 584

页数：4

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