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stereoselectivity 英/ st??r??s?lek?t?v?ti / 美/ ?sterio?s??lek?t?v?ti; ?sterio?si??lek?t?v?ti / - 1
化学 立体选择性 对映选择性 The amides’catalytic activity and stereoselectivity is lower than that have been reported in this area. We argue that the structure of carboxyl group have negative effect on the enantioselectivity. 酰胺类催化剂的催化活性和对映选择性比该领域中已报道的催化剂的要差,我们认为羧基结构不利于对映选择性的提高。
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医药科学 立体选择性 And enzymes would also show up stereoselectivity to entiomers, altering or even deteriorating the accretion rate of one of them. 对于对映体来说,酶还表现出立体选择性的差异,从而可能使其中占主药效的一个对映体的代谢速度改变甚至逆转。
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New methods for asymmetric synthesis of pinacol are reviewed, the catalytic effects and stereo - selectivity 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。 - 2
The steric and electronic configuration around the center metals has profound effect on the polymerization activity and the stereo - and regio-selectivity of the resulting polymers. 中心金属离子周围的电子效应和空间效应影响着催化剂的反应性能和所得聚合物的微观结构。
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