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- asymmetric direct aldol reaction 不对称直接羟醛缩合
- Abstract : The first histidine catalyzed direct aldol reactions of ketones with nitrobenzaldehydes in water and in poly(ethylene glycol) (PEG) were reported. 摘要 ： 本文首次报道了组氨酸在水中和聚乙二醇中催化酮和对硝基苯甲醛间的直接羟醛缩合反应。
- Keywords proline;asymmetric direct aldol reaction;reaction mechanism; 脯氨酸;不对称直接羟醛缩合;反应机理;
- Keywords B3LYP;HF;asymmetric catalytic direct aldol reaction;S-proline;acetone;2;2-dimethyl-propi- onaldehyde;solvent; 不对称催化直接羟醛缩合反应;S-脯氨酸;丙酮;2;2-二甲基丙醛;溶剂效应;
- Transition State Study on the S-Proline-catalyzed Direct Aldol Reaction between Acetone and 2,2-Dimethyl-propionaldehyde S-脯氨酸催化丙酮与2,2-二甲基丙醛不对称直接羟醛缩合反应过渡态的理论研究
- direct aldol reaction 直接Aldol反应
- Studies on Synthesis of Novel Chiral Organocatalysts and Its Evaluations for Asymmetric Direct Aldol Reactions 新颖有机催化剂的合成及催化不对称直接Aldol反应研究
- Abstract : An environment-friendly L-prolinamide catalyzed aldol reaction has been developed. 摘要 ： 本文报道了一种环境友好的脯氨酰胺催化水相直接羟醛缩合反应。
- Proline is believed to catalyse the aldol reaction through a hydrogen-bonded intermediate. 人们普遍认为，脯氨酸通过形成单氢键相连接的中介物来催化醛醇缩合反应。
- Using solid acid as the catalyst, DMDBS ?? the nucleation agent for polypropylene synthesis was prepared by the aldol reaction of D-sorbitol with 3,4-Dimethyl benzaldehyde. 以D-山梨糖醇和3,4-二甲基苯甲醛为原料,在固体酸催化剂下进行醇醛缩合反应,合成了二(3,4-二甲基二苄叉)山梨糖醇(DMDBS),并对影响产品熔点和收率的因素进行了考察。
- Temperature rise could increase molecular average kinetic energy and quicken alcohol acid esterification, aldol reaction and aldehyde-aldehyde condensation. 实践表明，以适当的高温，利用陶坛贮酒可加快白酒老熟，缩短生产时间，提高设备利用率，增加经济效益。
- direct asymmetric aldol reaction 直接不对称Aldol反应
- The advance of chiral phosphate-ester (phosphonate-ester) [phosphoramides (phosphonyl-amide)] in asymmetric alkylation reaction, Aldol reaction, hydrogenation reaction, cyanosilylation reaction was reviewed with 48 references. 讨论了手性膦(磷)酰胺及膦(磷)酯酯催化剂在不对称烷基化、不对称缩合、不对称氢化、不对称氰矽化等反应中应用的最新研究进展。参考文献48篇。
- Keywords Aldol reaction;catalysis;asymmetric; 羟醛缩合反应;催化;不对称;
- L-proline-catalyzed aldol reaction L-脯氨酸催化的羟醛缩合反应
- Recent Progress in Aldolase-Mimic Catalyzed Direct Asymmetric Aldol Reaction 模拟醛缩酶催化不对称直接Aldol反应新进展
- She cast her eyes down to avoid direct eye contact. 她垂下双目以避免对视。
- I'll book you on a direct flight to London. 我将为你预订直飞伦敦的航班。
- He has chosen the most direct route. 他选取了最直的路线。
- Small Organic Molecules Catalyzed Asymmetric Aldol Reaction 有机小分子催化的不对称羟醛缩合反应
