Electronic nature of the aza substituent of pyridyl and quinolyl groups for reactivities in an insulated system
作者:Masami Sawada、Masaharu Ichihara、Takashi Ando、Yasuhide Yukawa、Yuho Tsuno
DOI:10.1016/s0040-4039(00)71154-3
日期:1980.1
A new set of σo values was determined for all positions of pyridyl and quinolyl groups, reliably excluding steric effect by perihydrogen, on the basis of the rates of the alkaline hydrolysis of substituted 2-methylbenzoates and pyridylmethyl and quinolylmethyl 2-methylbenzoates in 70% aq acetone.
一组新的σ的ø值是为吡啶基和喹啉基的所有位置来确定,可靠地不包括perihydrogen空间位阻效应,取代的2- methylbenzoates和吡啶基的碱性水解速率的基础上,并在70%的喹啉基甲基-2- methylbenzoates丙酮水溶液。