环氧丙醇

仿水溶剂促进酶促拆分环氧丙醇的研究

Enzymatic resolution of glycidol improved by water-mimicking solvent

以三羟甲基丙烷为核，邻苯二甲酸酐，环氧丙醇为支化结构单元，合成了第一及第二代树枝状聚酯。

The first and second generation of dendritic polyesters have been prepared by divergent synthetic ways using trimethylopropame ( TMP ) as core and o-phthalic anhydride ( OPA ), glycidol as branched units .

在pH恒定7.0的条件下，以其发酵液水解底物，当转化率为58%时，残留的（R）－环氧丙醇丁酸酯的光学纯度（对映体过量值）达96.1%。

When the racemic substrate was enzymatically hydrolyzed to 58 % conversion at constantpH ( 7.0 ), the optical purity of recovered ( R ) - ester was 96.1 % ee ( enantiomeric excess ) .

考察溶剂、酰基供体和加酶量对反应的影响，确定有机相中酶促拆分环氧丙醇的最适反应条件。

The effects of organic solvents , acyl donors and amounts of lipase on the reaction were studied .

利用脂肪酶在非水介质中对外消旋环氧丙醇进行不对称酯合成反应，重点研究了强极性有机溶剂作为仿水溶剂完全替代反应体系中的微量“必须”水对酶促拆分反应的影响。

The asymmetric esterification of glycidol catalyzed by lipase was carried out in a nonaqueous medium . The effect of the replacement of water necessary for the function of lipase with water-mimicking solvent on the resolution was investigated .

甲醇中用氨和环氧丙烷合成异丙醇胺

Preparation of isopropanolamine from ammonia and propylene oxide in methanol