“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	technology-enhanced learning technology-enhanced teacher professional development technology evaluation technology extension agency of Chinese grassland technology for algae oil production technology forecasting technology foresight technology for examination of software similarity technology for measuring the coefficient of thermal expansion of material technology for pharmaceutical analytical informatics technology for recycling cemented carbide technology for separation of slag and steel in tapping technology gap technology imitation technology innovation management technology-intensive industry technology introduction technology learning technology licensing technology life cycle technology models of agricultural biomass energy technology of active protection technology of advanced measuring infrastructure system technology of biomass molding technology of cast iron in ancient China

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