“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	information system basic environment operation and maintenance information system configuration management information system conversion information system data resource operation and maintenance information system design information system development information system development method information system development mode information system development model information system development technology information system document management information system documents management information system engineering information system engineering audit information system facilities operation and maintenance information system for long term preservation of electronic records information system governance boundary information system governance concept information system governance decision mode information system governance discipline information system governance framework information system governance goals information system governance maturity model information system governance mechanism information system governance method

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