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1·At the same time, this paper also split the R-isomer of racemic to change and re-recovery.

同时本论文也对拆分后的R型异构体进行转变消旋而重回收。

2·Mechanisms of the resolution of some of the racemic compounds on these bounded phases were proposed.

本文对部分化合物对映异构体的拆分机制进行了初步探讨。

3·Presently, most of the catalysts used for the resolution of racemic mixtures are hydrolases, especially lipases.

目前，用于拆分外消旋化合物的酶多数是水解酶，而且绝大多数为脂肪酶。

4·In many cases, racemic drug's single antipode has different curative effect, sometimes it even has adverse action.

在许多情况下，外消旋药物中的单一对映体分别具有不同的疗效，有的甚至有相反的作用。

5·When considering biocatalysis, terms like kinetic racemic resolution or chiral syntheses immediately come to mind.

提到生物催化，我们通常会想到外消旋物的动力学拆分和手性合成。

6·The invention discloses a method for preparing racemic selenium-methyl selenocysteine by using aldehyde catalysis.

本发明公开了一种利用醛催化制备消旋硒-甲基硒代半胱氨酸的方法。

7·The amidocarbonylation reaction conditions were optimized and 66.4% isolated yield of racemic N-acetylleucine were obtained.

文中对酰胺羰基化反应条件进行了优化，分离得到消旋N-乙酰基亮氨酸产率为66.4%。

8·The membranes were then used in the electrodialysis resolution process to separate DL-4-hydroxyphenylglycine racemic mixture.

将其用于拆分DL-对羟基苯甘氨酸外消旋混合物的电渗析过程。

9·To develop a practical process for(R)-2-octanol production from racemic 2-octanol, a two step microbial reaction was investigated.

建立了一种新的制备手性2-辛醇的方法——双菌氧化还原耦联转化外消旋2-辛醇制备（R）-2-辛醇。

10·Use of stereoselective or stereospecific synthetic methods or separation of racemic mixtures can be used to obtain individual optical isomers.

可以使用立体选择或立体专一的合成方法，或者外消旋混合物的分离，来获得单独的光学异构体。

消旋的

1·The amidocarbonylation reaction conditions were optimized and 66.4% isolated yield of racemic N-acetylleucine were obtained.

文中对酰胺羰基化反应条件进行了优化，分离得到消旋N-乙酰基亮氨酸产率为66.4%。

2·The invention discloses a method for preparing racemic selenium-methyl selenocysteine by using aldehyde catalysis.

本发明公开了一种利用醛催化制备消旋硒-甲基硒代半胱氨酸的方法。

3·The method has the advantages of convenient operation and low cost, and is suitable for the industrialized production of the racemic selenium-methyl selenocysteine.

该方法操作方便、成本较低、适合工业化生产消旋硒-甲基硒代半胱氨酸。

外消旋的

1·Use of stereoselective or stereospecific synthetic methods or separation of racemic mixtures can be used to obtain individual optical isomers.

可以使用立体选择或立体专一的合成方法，或者外消旋混合物的分离，来获得单独的光学异构体。

2·Glycidyl butyrate was synthesized from racemic epichlorohydrin and butyric acid by chemical means. The purity of the refined product was over 96% and the yield was about 47%.

利用化学方法，由外消旋环氧氯丙烷出发，合成丁酸环氧丙酯，精制后可获得纯度96%以上的丁酸环氧丙酯，收率为47%。