electrophilic center
浣化亲电子中心 alkylating electrophilic cernter
极性转换的本质是有机化合物反应中心碳原子电性发生转换，即亲电性或亲核性发生转换的过程。
The essence of polar conversion is that organic compound reflects the carbon atom electricity in the centre and changes, kiss the electricity or kiss the core course changing.
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