烯丙基化

These ligands were found to be very effective in construction of quaternary carbon centers by using asymmetric allylic alkylation.

这类配体在前手性亲核试剂的不对称烯丙基化构筑手性季碳中心的反应中，显示了较好的反应活性及对映选择性。

The ligands were found to be effective in palladium-catalyzed asymmetric allylic alkylation to construct chiral quaternary carbon center.

这类配体在前手性亲核试剂的不对称烯丙基化构筑手性季碳中心的反应中，显示了较好的反应活性及对映选择性。

In this thesis, it was intended to investigate the role of planar chirality, and to design and synthesize novel ligands.

在前项工作基础上合成一类有效的手性二茂铁配体，拓宽烯丙基化反应的底物或反应类型，为解决这些问题做出我们的一些贡献。

Aqueous allylation reaction mediated by metals is one of the most widely researched organometallic reactions in aqueous media.

在已发现的水相金属有机反应中，水相烯丙基化反应是研究得较多和较深入的反应之一。

Objective To research the effects of a chiral aminoalcohol in the asymmetric allylation of acylhydrazones.

目的 研究手性氨基醇在酰腙不对称烯丙基化反应中的促进作用。

The activation energy and rate constant of the allylation reaction was calculated in virtue of kinetic study.

进行了动力学研究，获得了反应活化能和各反应温度下的反应速率常数，同时研究结果表明烯丙基化反应级数为2，反应机理为S(来源：A16BC论文网www.abclunwen.com)N2 亲核取代反应。

Last, we studied the allylation of benzoylhydrazones with allyltrichlorosilane.

在研究过程中，发现了一个C=N双键烯丙基化的新方法，和苯甲酰肼的新的合成方法。

The palladium-catalyzed allylation is a powerful tool for C-C, C-N, and C-O bond formation, which has been widely applied to organic chemistry.

藉由钯催化烯丙基化反应合成碳—碳键、碳—氮键和碳—氧键是非常有利的方法，主要是因为它在有机化学上广泛的应用性。

Selective allylation of the linear, cyclic and mixed diketones in the presence of water by allyl bromide and metallic zinc have been successfully achieved.

本文报道锌参与下水相介质中对称双酮及混合双酮的选择性烯丙基化反应的研究。

This article summarizes the latest research progress of the allylation reaction mediated by metals in aqueous media, and the new reaction mechanism is explained briefly.

本文综述了水相中金属参与烯丙基化反应的最新研究进展，并对新的反应机理作了简要的阐述。关键词：谢斌，冯建申邹立科，张秀兰

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。