nucleophilic reagent

Iso-butene and methanol etherification proceeds according to the electrophilic addition mechanism, Iso-butene makes protonation reaction as the proton acceptor under the acid catalyst function, being born the positive carbon ion, intermediate products react rapidly with nucleophilic reagent ( CH3O-) to produce MTBE.

异丁烯在酸性催化剂作用下作为质子的接受体发生质子化反应，生成正碳离子；作为中间产物的正碳离子，再迅速同亲核试剂CH3O-反应，生成MTBE。

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it compares the nucleophilicity of nucleophilic reagent with the similarities and differences of basicity.

把亲核剂的亲核性和碱性的区别与相同之处进行了比较。

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Route ⅱ, OLL grafted to dextran via its terminal carboxylic acid group with the presence of nucleophilic reagent and coupling reagent.

路线Ⅱ为在亲核试剂及偶合剂的存在下，OLL末端羧基接枝葡聚糖。

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Chapter two is concerned with the syntheses and characterization of some chiral ligands and consists of relevant mechanism of reaction ( for example, N anion acts as nucleophilic reagent and different nitriles act as reacting substance).

第二章讨论了若干手性配体的合成与结构，并包含了相关反应的机理探讨（例如N~-做为亲核试剂、不同的腈作为反应底物）。

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a study of reaction mechanism of the nucleophilic reagent in the cationic polymerization of isobutene with molecular simulation

分子模拟法研究亲核试剂在异丁烯正离子聚合反应中的作用机理

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Two derivative dyes from the parent dyes were obtained by nucleophilic substitution reaction in which two primary aminophenol were employed as the nucleophilic reagent.

将母体染料的中位氯原子用氨基酸试剂亲核取代，衍生合成了两个中位氨基酸取代的七甲川菁染料。

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