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- Keywords enantioselective alkylation;chiral phase transfer catalyst;cinchona alkaloid; 对映选择性烷基化反应;手性相转移催化剂;金鸡纳生物碱;
- enantioselective alkylation 对映选择性烷基化反应
- Alkyl halides are reacted with sodium nitrite. 卤化烷与亚硝酸钠反应。
- Alkyl bromides can be produced this way. 溴化烷可以这样形成。
- This invention concerns an alkylation process. 本发明涉及烷基化方法。
- To add one or more alkyl groups to(a compound. 使烷基化在（一种化合物）中添加一个或多个烷基团
- To add one or more alkyl groups to(a compound). 使烷基化在（一种化合物）中添加一个或多个烷基团
- Formation of an alkyl ion occurs according to reactions. 按照反应式生成烷基离子。
- The general answer to this problem is to avoid alkyl halides. 解决这一问题的一般办法是避免使用烷基卤。
- Ingredients: Alga essence, alkyl indican, chamomile essence, etc. 主要成分：海藻精华、烷基糖苷、洋甘菊精华等。
- Ingredients: alkyl indican, cucumber extract, VC, etc. 主要成份：烷基糖苷、小黄瓜提取液、VC等。
- Alkyl indicant is a new non-ionic surface active agent. 烷基糖苷是一类新型的非离子表面活性剂。
- Bolted Bonnet Gate Valves for Alkylation service (HF Acid service see page 19). 适用于烃化物应用领域的螺栓阀帽闸阀（氟化氢酸应用领域请参阅第19页）。
- 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。
- The controlling-velocity step for the enantioselective reduction is the decomposition of the B-O-B-N 4-numbered ring. 该不对称催化还原反应的控制步骤是催化剂-烷氧基硼烷加合物的B-O-B-N四元环的离解。
- Methods:Rupatadine was prepared from loratadine via hydrolysis and alkylation. 方法:以氯雷他定为原料,经水解、烷基化2步反应合成卢帕他定。
- A novel enantioselective amidase screening system was developed and proved to be efficient and accurate. 论文首先建立了一种新的立体选择性酰胺酶的筛选模型。
- The reaction yield can be increased by the improvement of alkylation methods. 本文研究了烃化反应;并对其进行了工艺改进;结果使原反应产率得以明显提高.
- Mei-Xiang Wang “Enantioselective Biotransformations of Nitriles in Organic Synthesis” Top. Catal. 2005 in press. 王梅祥，黄志镗，"杂环烯酮缩胺反应研究新进展"，自然科学进展，19999971.
- Screening, production and characterization of an enantioselective lipase from Geotrichum sp. GXU33 (对映选择性Geotrichum sp.
