本文简要介绍用几种方法立体选择性合成三和四取代烯烃。
This paper reports briefly stereoselective synthesis of tri and tetra-substituted ethylenes by some methods.
综述了酶催化立体选择性合成及动力学折分制备旋光性氰醇的几种方法。
Several enzymatic methods, including enzyme catalyzed enantioselective synthesis and kinetic resolution, for the preparation of optically active cyanohydrins are reviewed.
高立体选择性合成反式-2，5-二取代四氢呋喃是期待解决的关键问题。
The key problem is to synthesize high stereoselectively trans- 2,5- disubstituted tetrahydrofurans.
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