“neighboring group assistance”的概念、定义、翻译、参考文献-科学参考

单词	neighboring group assistance
释义	neighboring group assistance 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	International Conference on Computational Linguistics International Conference on Computational Linguistics ，COLING International Conference on Historical Linguistics International Conference on Large Voltage Electric System International Conference on Plant Metabolism International Conference on Scientometrics and Informetrics International Conference on the Great Lakes Region International Conference on Theory and Practice of Digital Libraries International Conferences on Adult Education international conferences on environmental protection international conflict international conflict of laws international conflict of laws in civil and commercial matters International Congress of Ecology International Congress of Historical Sciences International Congress of Mathematicians International Congress of Mathematicians，ICM International Congress of Mechanical Engineering Societies International Congress of Zoology International Congress on Archives International Congress on Fracture International Congress on Industrial and Applied Mathematics International Congress on Rheology international construction contract conditions international construction employment system

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