enamine

1. This is the lowest catalyst loading that has been achieved so far in enamine catalysis with low molecular weight catalysts for a broad range of substrates.
   这一催化载量，在已知的烯胺小分子催化剂中，是最低的，且底物广泛。
2. The meso carbon atom of the methine linkage of the dye is attached to the nitrogen atom of a group which forms an enamine with the methine linkage of the dye.
   该染料甲川链上的碳原子与氨基的氮原子相连，而该氮原子又与染料的甲川链形成烯胺。
3. Careful analysis of the crude reaction mixture revealed a substituted enamine as the primary product, which was hydrolyzed over silica gel to give a γ-keto ester as the final product.
   通过对反应过程的跟踪分析，发现反应的最初产物是取代的烯胺，该烯胺中间体在硅胶柱层析过程中发生水解，生成γ-酮酯为最终产物。
4. The results of the studies indicate that the tautomeric equilibrium between the enol imine and keto enamine exists in the compounds.
   结果表明，合成的化合物具有醇亚胺和酮胺互变异构体结构，锡原子是五配位的，存在着分子间酚羟基（酮羰基）氧原子同锡原子的配键。
5. The enamine of R (+)-citronellal was treated with ethyl acrylate to give 2-( 2 '-eth)(?) thy(?)-citronellal.
   R（+）-香茅醛的烯胺与丙烯酸乙酯反应，得2-（2′-乙氧羰基乙基）香茅醛。
6. The enamine is a type of important reaction intermediate, it has an extensive application in organically synthesize.
   烯胺是一类重要的反应中间体，其在有机合成中有着广泛的应用。
7. The methods of preparing nitrogen heterocycles by the imine and enamine intermediate are introduced.
   本文简要综述了以亚胺和烯胺为中间体采用固相合成技术构建有机含氮杂环化合物库的方法。
8. Measurement of Primary Kinetic Deuterium Isotope Effect of the Reaction of Enamine Formation Using Natural Abundance Deuterium NMR
   天然氘核磁共振法测定环酮的烯胺化反应的一级动力学氘同位素效应
9. ? Methyl ethyl acetoacetate was synthesized by enamine alkylation, which was compared with water process method.
   本文报道了α－甲基乙酰乙酸乙酯的烯胺法合成，探讨了烯胺法与水法的不同。
10. Attempts to trap the enamine intermediate with several electrophilic reagents were not successful.
    此外也尝试了利用最初形成的烯胺中间体与一些亲电试剂发生串连反应，但未能取得成功。
11. A reaction mechanism involving nucleophilic addition of an enamine to a metal carbene and subsequent hydrogen transfer was proposed.
    根据这一实验结果和以前对重氮化合物反应机理的了解，我们认为反应的机理是烯胺与金属卡宾首先进行亲核加成，然后发生氢迁移过程，产生烯胺中间体。
12. Synthesis of α-Methyl Ethyl Acetoacetate by Enamine Alkylation
    烯胺法合成α－甲基乙酰乙酸乙酯
13. The reaction may proceed in micelle with an enamine mechanism that is similar to the Aldolase catalysis.
    反应是在胶束中进行的，反应机理推测为通过形成亚胺中间体的类似Aldolase酶催化的机理。
14. Ketoprofen was synthesized from cyclohexanone via stork enamine reaction, aldol condensation, elimination reaction and aromatization in overall yield of about 43.2%.
    以环己酮为起始原料，经Stork烯胺反应、羟醛缩合、消除、芳构化制得酮基布洛芬，总收率43.2%。
15. Asymmetric enamine catalysis is used to realize the α-functionalization of carbonyl compounds in organic synthesis.
    不对称烯胺催化在有机合成中用于羰基化合物的α-官能团化。
16. Based on the data we got, we believed that there should be a third resonant structure of the reaction intermediate hydroxyethyl thiamine pyrophosphate ( HEThDP) besides the reported enamine resonant structure and C2-a-alkenyl carbanion resonant structure, which might be named enol resonant structure.
    根据我们得到的数据，我们认为其重要的反应中间体羟乙基硫胺素焦磷酸（HEThDP）除文献报道的烯铵结构和C2α-碳负离子结构之外，还存在第三种共振结构，即烯醇式结构。

noun

1. an amine containing the double bond linkage -C=C-N-