Equilibrium and Kinetic Studies on the Formation of Triphenylmethanols from Triphenylmethane Dyes
作者:Takuyuki Hagiwara、Shoji Motomizu
DOI:10.1246/bcsj.67.390
日期:1994.2
triphenylmethane dyes, the rate constants of hydration and dehydration reactions, and equilibrium constants in an aqueous solution were measured by a stopped-flow method. An increase in the number of dialkylamino groups caused a decrease in the rates and the equilibrium constants of the hydration, and the more the electron-donating effect of the dialkylamino groups, the slower the hydration rate became. The more
对五种三苯甲烷染料,采用停流法测定了水合和脱水反应的速率常数和在水溶液中的平衡常数。二烷基氨基数目的增加导致水合速率和平衡常数的降低,并且二烷基氨基的给电子效应越大,水合速率变得越慢。质子化程度更高的醌类化合物很容易转化为相应的醇类。根据平衡常数,孔雀石绿被确定是五种染料中在水性介质中与杂多酸离子缔合的最佳试剂。