请输入您要查询的字词:
单词
邻助作用
释义
邻助作用
Encyclopedia
理学
邻助作用
释
neighboring group assistance; anchimeric assistance
邻助作用
进行亲核取代反应的底物分子,若同时存在亲核的基团和离去基团,且这两种基团在空间位置上的距离也适当,则在亲核取代反应的条件下,将优先发生分子内的亲核取代反应,生成环状产物,从而影响反应的立体选择性、区域选择性或活性的现象。又称邻基参与。
随便看
regular filtration
regular first integral
regular fixed point
regular flights airline mileage
regular flow
regular flower
regular food safety risk monitoring
regular form
regular function
regular functional
regular function algebra
regular function element
regular galaxy
regular generalized function
regular generation
regular grammar
regular graph
regular graph embedding
regular grid index
regular grid model
regular group
regular handle decomposition
regular harmonic function
regular hendecagon
regular heptagon
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2026/9/1 16:24:16