查询词典 tertiary amine

New compounds of the type of unsymmetrically substituted ureas are synthesized by a series of reactions of preparing organic isocyanates by Curtius rearrangement with aromatic amine.

以3 苯基 2 丙烯酸为原料，用Curtius重排的方法合成异氰酸酯，直接与芳香胺作用，合成了5 种N 取代苯基 N′苯丙烯基脲类化合物。

At last,a convergent and general protocol to marine natural product,as demonstrated by the enantioselective total synthesis of malyngamides O,P,Q,R, 5"-epi-Q and 5"-epi-R bearing terminal vinylic chloride structure,was developed in detail.E,(7S)-7-methoxytetradec-4-enoic acid was prepared using the above described Johnson-Clainsen rearrangement,the terminal vinyl chloride was constructed using Wittig reaction as key step,the pyrrolidone derivative was constructed using L-serine as natural chiral pool.Starting from the synthesis of malyngamides O and P to explore the general route,an aldol reaction of methyl acetate with the vinyl chloride part in the presence of LDA gave the skeleton of amine portion,followed by amidation with the fatty acid finished the synthesis of malyngamide P.

先以malyngamides O和P为试点探索通用合成路线，将乙酸甲酯和烯氯部分在LDA存在下进行aldol反应得到氨部分的骨架，再将手性不饱和脂肪酸和氨部分进行酰胺化反应完成了malyngamide P的合成，将P在碱性条件下进行烯醇甲基化反应完成了malyngamide O的全合成。

Methods chooses 2003.1 to 2006.12 zhu keeps 101 examples in the yuechi county people hospital in hospital parturient woman post-natal urine, divides two groups (the catheterization bamboo grove amine, the vitb1 group; the catheterization ten new si's bright groups) observe the curative effect appraisal.

选择2003年1月至2006年12月在岳池县人民医院住院产妇产后尿潴留101例，分二组（导尿+竹林胺、vitb1组；导尿+新斯的明组）观察疗效评价。

In solvent and under the action of certain catalyst, anilino methyl siloxane is reacted to obtain solid cage anilino methyl sesquisiloxane octamer acid salt; and through filtering, washing, precipitation and reaction with amine desalting agent, cage anilino methyl sesquisiloxane octamer is finally prepared.

本专利提供了一种笼型八聚苯胺甲基倍半硅氧烷的制备方法，苯胺甲基硅氧烷在一定溶剂和催化剂作用下反应，过滤得到笼型八聚苯胺甲基倍半硅氧烷酸式盐固体，经过洗涤、沉淀，再与胺类脱盐剂作用，最终制得笼型八聚苯胺甲基倍半硅氧烷。

Finally, the remaining amine groups are acetylated to ensure that the complex particles do not bear any surface charges.

最后，科学家将剩余的氨基进行乙酰化，这保证了复杂粒子不会受到表面电荷影响。

The particular preparation procedure is as follows: preparing a carbon nanotube with carboxyl by acidulating the carbon nanotube; Preparing the carboxylic carbon nanotube/nylon 66 composite material by polymerizing the carboxylic carbon nanotube and the raw material (such as polybasic acid and polybasic amine) which is used for preparing the nylon 66 through in situ polymerization.

具体步骤为：通过对碳纳米管进行酸化，制备携带羧基的碳纳米管。通过原位聚合法将羧基化碳纳米管与制备尼龙66的原料进行聚合，制备羧基化碳纳米管/尼龙66复合材料。

METHODS The HCV core gene coding region was inserted into the eukaryotic expressive plasmid pcDNA3, then the recombinant plasmid pcDNAHCV-C was constructed and expressed transiently with LipofectAMINE in the SP2/0 cells. After purification, these plasmid directly or encapsuled wit h Lipofect-AMINE were injected into BALB/c mice. HCV core antibody from immunized mice could be detected by ELISA. RESULTS The enzyme -cutting identification showed that HCV core gene fragment had been cloned into pcDNA3 eukaryote vectors.

人工构建包含HCV C基因片段的真核表达载体pcDNAHCV-C，在证实其可以在真核细胞中表达之后，将其用脂质转染剂包裹，形成LipofectAMINE-pcDNAHCV-C脂质混合物，将该混合物或单纯pcDNAHCV-C直接注射BALB/c小鼠股四头肌，以空载体pcDNA3做对照，ELISA法检测血清中抗体产生水平。

This article reviews three kinds of methods for manufacture halogenated aromatic amine ,and the strong and weak points of the three reduction methods are pointed out.

本文综述了由卤代芳硝基物还原制备卤代芳胺的三种方法，并对几种还原方法的优缺点进行了对比和讨论，得出水合肼还原具有很好的应用前景。

Liver cirrhosis ; intestinal mucosa ; endotoxins ; lactates ; amine oxidase（copper-containing

肝硬化；肠黏膜；内毒素类；乳酸盐类；胺氧化酶

We have also designed and synthesized a model terfluorene bearing hindered amine moieties to investigate the effect of stabilization onterfluorene.

设计并合成了非平面的含噻吩螺环和二螺环来实现调制光电功能基团的分子间相互作用，并有效的提高光电材料形态稳定性。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。