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涉及36的这种逐步亲核取代是不大可能的。A stepwise nucleophilic displacement involving 36 was highly unlikely.

胺的亲核能力对酰胺的收率也有一定的影响。The nucleophilic ability of the amines had effect on the yields of the amides as well.

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氨基-1,2,4-三唑与苦基氯的亲核取代反应动力学研究。Kinetics of the Nucleophilic Substitution of 3-Amino-1,2,4-Triazole with Picryl Chloride.

亲核性芳香取代。多取代苯衍生物合成的策略。Nucleophilic Aromatic Substitution. Strategies in the Synthesis of Multisubstituted Benzene Derivatives.

也考察了在原油环境中,各种反应条件对一氯丙烷亲核取代反应的影响和规律。The nucleophilic substitution reaction of 1-chloropropane in the environment of crude oil was also studied.

根据实验结果,我们推测反应的关键步骤为亲核进攻。According to the experimental results, it was assumed that the cyclization was taken by nucleophilic attack.

研究N-甲基羟胺与O-甲基羟胺对不饱和硝基化合物的加成反应。To study the nucleophilic addition of N-methylhydroxylamine and O-methylhydroxylamine to unsaturated nitro compounds.

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迈克尔反应是一个典型的亲核加成反应,一直是有机化学领域的一个研究热点。Michael reaction is a typical nucleophilic addition reaction, is always an organic chemistry domain research hot spot.

近年来,亲核手性胺催化剂的合成与应用得到了迅速发展,成为当前有机小分子催化研究的热点。This thesis reported the synthesis of novel nucleophilic chiral amine catalysts and their application in asymmetric reactions.

如果各种亲核试剂与吡喃盐反应,就可制取许多种带官能基的衍生物。Treatments of pyrylium salts with various nucleophilic reagents allows the production of a host of functionalized derivatives.

本论文在总结前人研究工作的基础上,采用亲核取代反应合成了磺酸乙酸钠。According to previous research work, the sulfoacetic acid disodium salt was synthesized by a nucleophilic substitution reaction in this paper.

以2,4-二氯苯乙酮为起始原料,经醚化、溴化、缩酮化、亲核取代4步反应制得苯醚甲环唑。Difenoconazole was prepared from 2, 4-dichloroacetophenone followed by etherification, bromination, ketal reaction and nucleophilic substitution.

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探讨碱性、溶剂极性、离去基团、吸电子基团、亲核试剂的亲核性对反应影响。There are impact factor to be discussed such as solvent polarity, nucleofuge, attract electron group the nunucleophilicity of nucleophilic reagent.

以磷酰氯为原料通过与手性仲胺的亲核取代反应高产率地合成了手性HMPA类似物。The chiral HMPA analogues 1 and 2 were prepared in high yield by nucleophilic substitution between the chiral secondary amine and phosphoryl chloride.

通过环甘油磷脂核苷缀合物的亲核开环,为甘油结构修饰提供了一条简便有效的新路线。Nucleophilic ring opening of cyclic glycerothiophospholipid-nucleoside conjugate provides a simple and efficient path for the modification of glycerin skeleton.

考察了微波技术、反应物料比、催化剂以及溶剂等主要条件对亲核取代反应和产物收率的影响。The effect of process conditions, such as microwave, reactant ratio, catalyst and solvent etc, on the nucleophilic substitution and yield of product were investigated.

研究了由对硝基苯基偶氮苯类染料与聚环氧氯丙烷经大分子反应合成的含偶氮苯侧基的共聚醚的二阶非线性光学特性。Some novel copolyethers containing azo benzene chromophors as side chains have been synthesized by a nucleophilic reaction of various azo dyes with polyepichlorohydrin.

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制备方法包括对简单氨基酸衍生物的亲核环烷基化、类卡宾加成以及简单环丙烷化合物的衍生化合成等。General approaches involve the nucleophilic cycloalkylation, carbenoids addition of certain amino acid derivatives and derivatization from simple cyclopropane compounds.

将母体染料的中位氯原子用氨基试剂亲核取代,衍生合成了五个中位仲胺七甲川菁染料。Five derivative dyes from the parent dyes were obtained by similar nucleophilic substitution reaction in which five primary amines were employed as the nucleophilic reagent.

并且对亲核试剂的体积效应、溶剂效应对亲核性影响,底物上吸电子基团的数目、吸电子能力对亲电性的影响,以及亲核取代反应的发生部位受哪些因素影响进行探讨。At the same time , discuss about the impact factor to nucleophilicity such as the number of attract electron group, ability of attract electron and the nucleophilic substitution reaction part.