对映的

This paper reviews the recent advances in synthesis of chiral allylic amines, mainly discussing the effects of ligands on chemo-and regio-selectivities.

综述了近年来手性烯丙基胺的合成进展，重点介绍了催化剂配体对化学选择性和对映选择性的影响，并阐述了各种类型的反应机理

The influence of polar modifier and column temperature on enantioseparation of benzoin on Chiralcel OD-RH systematically was also studied in the thesis.

另外，安息香对映体在Chiralcel OD-RH柱上的色谱拆分保留机理，特别是极性有机溶剂及柱温度对安息香拆分的影响也是本论文的研究内容。

Furthermore, the selective reductions of 2,2'-dinitrobiphenyl have been detailedstudied in the synthesis of achiral biphenyl backbones.

运用不对称活化的策略，成功地在Cu催化Et_2Zn对链烯酮的1，4-共轭加成反应中获得了高对映体选择性的加成产物。

It seems that the planar chirality is decisive in controlling the absolute configuration of product in the model reaction.

对烯丙基钯络合物的研究表明反应的对映选择性是由动力学和热力学共同控制的。

Simultaneously, we proposed the working model of assembled dendritic catalyst for HDA reaction of Danishefsky's diene with aldehydes.

同时也考察了Dendrimer取代基的大小、位置对产物收率与对映选择性的影响，结果发现L〓系列表现出较明显的Dendrimer效应。

In addition, adsorption of the pesticide on kieselguhr decreased "free pesticides", which also enhanced the enantioselectivity of hydrolysis of 2,4-DP.

此外，硅藻土吸附作用对农药底物的束缚引起处于"自由状态"的底物减少，也使酶促反应的对映体选择性略有增强。

Chiral separation of D -, L -phenylglycine by RP-HPLC was accomplished by adding a complex of optically active L -Phe-Cu2+ to the mobile phase. Chiral separation mechanism was further elucidated in light of unambiguously assigning the structure of the elutents from RP-HPLC by taking advantage of tandem mass spectrometry due to its unique capability of structural identification of the unknows.

以含 L -苯丙氨酸铜配位络合物的溶液作为手性流动相，采用反相高效液相色谱法拆分了非衍生苯甘氨酸对映体，使用质谱对拆分组分进行了结构鉴定，得到了拆分组分的化学结构，用量子化学计算预测了该结构的最稳定构象。

New chiral boronic acid sensor was synthesized and its enantioselectivity towards tartaric acid was studied.

合成了新的由蒽及苯乙胺衍生的手性芳基硼酸荧光探针，研究了该手性探针对酒石酸的对映选择性识别作用。

With the development of life science and biological engineering, chiral separation and recognition have been payed close attention universally ,which have important significance in organic chemis- try, life science and medicinal chemistry.

随着生命科学和生物工程的发展，手性拆分和手性识别引起了人们的普遍关注，研究对映体拆分与识别对有机化学、生命科学和医药工业均具有十分重要的意义。

Using THz absorption spectra can distinguish different kinds of amino acids, enantiomers and racemic compounds and structure isomers.

这一研究对建立氨基酸THz谱数据库，及其在氨基酸的手性对映体、结构和成分的区别方面有很重要的理论与实践意义。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐