1) Enantioselectivity
对映体选择性
1.
Theoretical Studies on Asymmetric Boron-catalyzed Reaction(Ⅰ) The Enantioselectivity in Oxazaborolidine-catalyzed Reductions of Phenyl Ethyl Ketone;
不对称硼催化反应的理论研究(Ⅰ)——噁唑硼烷催化苯基乙酮还原反应的对映体选择性机理
2.
This review emphasizes some important aspects for the control of lipase enantioselectivity: medium engineering,substrate engineering,modification of enzyme and directed evolution.
文章讨论了调控脂肪酶对映体选择性的几种方法:反应介质工程、底物分子工程、酶分子修饰和定向进化。
3.
The influence of substituents on the enantioselectivity in asymmetric branched oxazaborolidine catalyzed reductions of phenyl ethyl ketone has been studied by using AM1 MO method and transition state theory.
用AM1方法和过渡态理论研究了取代基对含侧链手性唑硼烷催化还原苯基乙基酮对映体选择性的影响 。
2) enantioselectivity
对映体选择
1.
The enantioselectivity of DCPPM biodegradation in aquatic phases were evaluated.
考察了手性农药2,4-滴丙酸甲酯(DCPPM)生物降解过程中的对映体选择性,通过驯化、培养分离了1株对其具有降解能力的菌株DP,并且运用手性毛细管气相色谱测定了DCPPM在降解过程中的对映体分数(EF),评价了DCPPM在水相中的对映体选择性生物降解。
3) enantioselective
对映选择性
1.
Our calculations confirm that title reaction consists of two parallel step processes, in which complexes, TS, intermediates and enantiomer middle products are located on the enantioselective reaction pathway between oxazaphospholidine borane adduct and acetophenone.
应用密度泛函理论BHandH/6-31G**计算方法研究新型手性非金属催化剂1,3,2-噁唑磷烷-硼烷催化还原苯乙酮的对映选择性反应机理,确定了在反应途径上的反应物、络合物、过渡态,中间体和对映体中间产物。
2.
The enantioselective Diels-Alder reaction of N-propenoyl-1,3-oxazolidin-2-one with cyclopentadiene was catalyzed by free and polymer-supported complexes of titanium with N-sulfonyl-L-amino acids.
用磺酰化的L 缬氨酸、L 苯丙氨酸、L 亮氨酸和L 异亮氨酸的钛螯合物催化N 丙烯酰 1,3 唑烷 2 酮与环戊二烯的对映选择性Diels Alder (D A)反应 ,其ee值为 48。
4) enantioselectivity
对映选择性
1.
Control of biocatalysis enantioselectivity;
生物催化反应对映选择性控制
2.
which can catalyze the asymmetric Mannich reaction with high catalytic activity and excellent enantioselectivity.
目前报道的催化不对称Mannich反应的有机催化剂主要有脯氨酸及其衍生物、手性磷酸、手性(硫)脲和金鸡纳碱衍生物等,取得了良好的催化活性和对映选择性。
3.
High yields and excellent enantioselectivity were achieved in asymmetric or- ganic reactions involving imines,such as asymmetric Mannich,reductive amination,Pictet-Spengler, aza-Diels-Alder,aza-ene reactions and so on.
手性磷酸是近年来发展起来的一类新型高效、高对映选择性的Br(?)nsted酸类有机催化剂,已成功应用于催化不对称Mannich反应、还原胺化反应、Pictet-Spengler反应、aza-Diels-Alder反应和aza-Ene反应等许多重要的有机合成反应。
5) enantiomeric selective acidolysis
对映体选择性酸解
1.
Novozyme 435 can improve enantiomeric selective acidolysis of(R,S)-3-n-butylphthalide.
Novozyme 435可以提高对映体选择性酸解(R,S)-3-n-丁基苯酞。
6) Enantioselective transesterification
对映体选择性转酯化
补充资料：映托
1.映衬，使明显。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条