In the reaction of NAE 18 with nitrogen mustard aryl phosphorochloridate, 4 - dimethylaminopyridine ( DMAP ) played critical catalytic action.

在合成工作中发现:在NAE18与氮芥芳基磷酰氯的反应过程中, 4- 二甲氨基吡啶 ( DMAP ) 起着关键性的催化作用.

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Increased rate of reaction , in the presence of catalyzer, is called of catalytic action.

有催化剂时反应速度的加快叫做催化作用.

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The results show that the phase transfer catalytic action of DCAS is very strong.

结果表明,DCAS具有 很好的相转移催化性能,与TBAS相当.

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