非对映选择性,diastereoselectivity
1)diastereoselectivity非对映选择性
1.The different selectivities,including chemoselectivity,regioselectivity,syn/trans selectivity,diastereoselectivity,and enantioselectivity,of organic reactions under the microwave-assisted and conventional heating conditions are reviewed.本文综述了微波辅助下有机化学反应的选择性,包括化学选择性、区域选择性、顺反选择性、非对映选择性和对映选择性,与传统加热条件下反应选择性的区别。
2.Epoxidation of 4-acetamidocyclopentene furnished gooddiastereoselectivity comparable to that of allylic ones.但对于高烯丙位酰胺基取代的环戊烯环氧化的非对映选择性则取决于具体的酰胺基:4-乙酰胺基环戊烯得到与烯丙位系列类似的很好的顺式选择性,但是4-苯甲酰胺基环戊烯环氧化的选择性变差。
3.Three strategies (additive, chiral auxiliary or chiral reagent) were developed to improve thediastereoselectivity or enantioselectivity of the ylide cyclopropanation reactions.通过添加剂、手性辅基、手性试剂等 3种策略,分别控制反应的非对映选择性和对映选择性。
英文短句/例句
1.Studies on Diastereoselective Total Synthesis of (+)-Biotin and Their Relative Reaction;（+）-生物素非对映选择性全合成及其相关反应的研究
2.Highly Diastereoselective Epoxidation of Protected α-amino Alkenes Catalyzed by Ruthenium Porphyrin/Cl_2PyNO System and Synthesis of Chiral Estranol Dimers;钌卟啉催化α-氨基烯烃的非对映选择性环氧化反应研究和手性雌甾二聚体的合成
3.Diastereoselective Epoxidation and Amidation of Δ～5-Steroid Derivatives Catalyzed by Metalloporphyrins;金属卟啉催化胆甾-5-烯衍生物的非对映选择性环氧化及酰胺化反应
4.Highly Diastereoselective Epoxidation of △～5-Steroids Derivatives Catalyzed by Polymer-Supported Metalloporphyrins;高分子负载金属卟啉催化胆甾-5-烯衍生物的非对映选择性环氧化研究
5.Diastereoselective Synthesis of Propagylamine via Three Component Couplings of α-oxyaldehyde, Alkynes, and Amines in Water;水相中α羟基醛及其衍生物与炔、胺三组分偶联非对映选择性合成炔丙基胺的研究
6.Stereoselective and Enantioselective Synthesis of Trans-2, 5-disubstituted Tetrahydrofurans反式-2，5-二取代四氢呋喃的立体选择性和对映选择性合成
7.Study on Stereoselective Glucuronidation of Propranolol Enantiomers;普萘洛尔对映体葡醛酸化立体选择性代谢研究
8.Improve the Enantioselectivity of Lipase A of Bacillus Subtilis by Site-directed Mutagenesis;定点突变提高枯草杆菌脂肪酶A的对映体选择性
9.Enantioselective Reduction of Aromatic Ketones Using Celeriac as Biocatalyst用芹菜茎生物催化对映选择性还原芳香酮
10.Enantioselective separation of lambda-cyhalothric acid enantiomers by chiral extraction with tartaric esters酒石酸酯立体选择性萃取分离功夫菊酸对映体
11.You can improve the performance of slide show by selecting options in the Performance area of the Set Up Show dialog box.通过选择“设置放映方式”对话框中的性能选项，可以改善幻灯片放映性能。
12.Enantioselective recognition of chiral diphenic acid-based molecular clefts for amino acid derivatives手性联苯二甲酸分子裂缝对氨基酸衍生物的对映选择性识别
13.Study on Enantioselective Cytotoxicity and Pesticidal Activity of Bifenthrin联苯菊酯的细胞毒性及杀虫活性的对映体选择性研究
14.Catalysis: Development of chirometallopor-phyrins as enantioselective oxidation catalysts of alkenes and sulfides.催化作用：开发新型手性金属催化烯类及硫醚类之对映选择性氧化。
15.Enantioselective Binding of Chiral Drugs to Plasma Proteins;手性药物对映体与血浆蛋白结合的立体选择性研究
16.The Enantioselective Interaction between Lipase with Chiral Phenoxypropionic Acid Herbicides;脂肪酶与手性苯氧丙酸类除草剂的对映选择性相互作用
17.Enantioselectivity in Endocrine Disruption of Two Typical Chiral Pesticides;两种典型手性农药内分泌干扰效应的对映体选择性研究
18.Enantioselective Toxicity and Degradation of Some Endocrine Disrupters;几种内分泌干扰物的对映体选择性毒性及其降解
相关短句/例句
diastereoselective非对映选择性
1.Highly Diastereoselective Epoxidation of △～5-Steroids Derivatives Catalyzed by Polymer-Supported Metalloporphyrins;高分子负载金属卟啉催化胆甾-5-烯衍生物的非对映选择性环氧化研究
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 theenantioselective 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.Theenantioselective 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 biocatalysisenantioselectivity;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 excellentenantioselectivity.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 excellentenantioselectivity 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)Diastereo recognizable oxidation reaction非对映选择性氧化
6)diastereoselective synthesis非对映选择性合成
延伸阅读
配映1.映衬。
