Good stereoselectivity in this reaction was observed.
反应有较好的立体选择性。
These, cycloaddition reactions proceed with stereoselectivity.
上述反应具有(顺，反)立体选择性。
The stereoselectivity was improved by increasing steric hindrance of the reactions.
通过增加反应的空间位阻改进了反应的立体选择性。
Also, the high stereoselectivity of the Wittig olefination has been well rationalized.
同时，对该烯化反应所表现出的高度立体选择性作了合理解释。
The other is conducted amidst carbonium ion intermediate and the product thus brought about has no stereoselectivity.
另一种是通过碳正离子中间体进行的，它所得到的产物无立体选择性。
The aim of this research is to study the stereoselectivity of photocyclization reaction in the act of chiral template.
本文主要研究手性模板作用下的光环合反应的立体选择性。
Lipase has wide specificity for substrate, high stereoselectivity and plays very important role in the bioorganic synthesis.
脂肪酶具有宽的底物专一性、高的立体选择性，在生物有机不对称合成中扮演着重要的角色。
In these containers, bimolecular reactions between specially selected guests proceed with high regio - and stereoselectivity.
在这些容器，双分子之间的反应，特别挑选客人进行高区选和立体选择性。
The stereoselectivity of biocatalysts is one of their major advantages and has fueled widespread research on enzymes for c-c coupling.
生物催化剂的立体选择性是它们的主要优势之一，用酶催化c—c键形成已引起了广泛关注。
In this paper, it was reviewed that the most recent results on the study of the stereoselectivity in pharmacokinetics and its related factors.
本文综述了手性药物药代动力学立体选择性及其影响因素方面的最新研究进展。
Stereoselective oxidative dimerization of the enolate of carboxylic acid derivatives is summarized focusing on the stereoselectivity of the process.
综述羧酸衍生物的烯醇盐氧化二聚成键的规律，重点是立体选择性的过程。
The effects of the structure of ligands and substrates, the type of alkali, and reaction time on rate of reaction and stereoselectivity were discussed.
讨论了配位基的形状，反应物的构造，碱的类型以及反应时间对反应速率和立体选择性的影响。
On the contrary, pretreating with allyl bromide could turn the stereoselectivity of this asymmetric reduction reaction from mainly producingS-CHBE to R-CHBE.
而烯丙基溴预处理可以使反应立体选择性从通常的生成S-型产物过量转变为R-型产物过量，优化处理条件后能使R-CHBE的e。
New methods for asymmetric synthesis of pinacol are reviewed, the catalytic effects and stereoselectivity with various catalytic systems are discussed in this paper.
综述了近年来不同催化体系的不对称合成呐醇的方法，并总结了不同的催化效率和对映选择性的差异。
The result shows that, under this catalytic reaction, the Heck arylation of iodobenzene with acrylic acid has a good stereoselectivity and only trans-cinnamic acid is produced.
结果表明，在此催化剂作用下，碘代苯与丙烯酸反应具有较好的立体选择性，只生成反式苯丙烯酸；
The stereoselectivity of 1,4-addition of dialkylphenylsilyl cuprates to 2-cycloenones was investigated and meantime a series of new 2-substituted-3-silylcycloalkanones were synthesized.
研究了烷基苯基硅铜酸盐与2-环烯酮的1，4-加成反应的立体选择性，并合成了一系列新的2-取代-3-硅基环烷酮。
The stereoselectivity of 1,4-addition of dialkylphenylsilyl cuprates to 2-cycloenones was investigated and meantime a series of new 2-substituted-3-silylcycloalkanones were synthesized.
研究了烷基苯基硅铜酸盐与2-环烯酮的1，4-加成反应的立体选择性，并合成了一系列新的2-取代-3-硅基环烷酮。
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