• 通过磷酰核取代反应高产率地合成了手性HMPA 类似物

    The chiral HMPA analogues were prepared in high yield by nucleophilic substitution between the chiral secondary amine and phosphoryl chloride.

    youdao

  • 同时概述了、二、多及其衍生物应用

    Meanwhile the applications of secondary amine, diamine, polyamine and their derivatives were summarized also.

    youdao

  • 有机催化剂催化性能优于催化性能。

    The catalytic performance of the secondary amine catalyst is generally superior to the primary amine and tertiary amine catalyst.

    youdao

  • 本文叙述脂肪生产方法反应机理研究最佳反应条件。

    This paper were introduced the production method and reaction mechanism of fatty secondary amine was studies also on optimum reaction condition.

    youdao

  • 文章介绍了伯仲胺空间位溶液反应机理动力学

    The reaction mechanism and kinetics of CO2 with primary, secondary, tertiary and steric hindered amines are described.

    youdao

  • 研究了7203(简写为7203)萃取氰酸络合物性能及其机理

    The extraction properties and mechanism of niobium thiocyanate complex with secondary amine 7203 are studied.

    youdao

  • 以磷酰氯为原料通过核取代反应高产率地合成了手性HMPA类似物。

    The chiral HMPA analogues 1 and 2 were prepared in high yield by nucleophilic substitution between the chiral secondary amine and phosphoryl chloride.

    youdao

  • 母体染料中位氯原子氨基试剂取代衍生合成了个中位七甲川菁染料。

    Five derivative dyes from the parent dyes were obtained by similar nucleophilic substitution reaction in which five primary amines were employed as the nucleophilic reagent.

    youdao

  • 采用合成氨厂的合成气代替氢气使脂肪加压催化氢化 ,可一步制得双脂肪烃基仲胺

    A new process has been developed to synthesize p-aminophenol methyl ether from p-nitrophenol methyl ether by catalytic hydrogenation, using ammonia synthesis gas instead of pure hydrogen.

    youdao

  • 由于某些促进剂中含有仲胺亚硝主要来源因此人们正在考虑使用一类新的促进

    Due to secondary amines existed in some accelerants, which is the main source of nitrosamine, so it is considered to use a new type of accelerant.

    youdao

  • 这些材料包括各种丙烯酸单体物、伯仲胺、酸官能单体和低聚物、硅酮弹性体等。

    These materials include a variety of acrylic monomers and oligomers, primary, secondary and tertiary amines, acid-functional monomers and oligomers, silicones, waxes and elastomers, among others.

    youdao

  • 双氢化牛脂基主要用于除草剂杂环乙烷聚合物稳定剂、纤维水剂、抗静电柔软剂等方面

    Mainly used in herbicide, two heterocyclic oxygen ethane polymer stabilizers, waterproofing agent, antistatic agent and softening agent of fiber, etc.

    youdao

  • 本实验采用环氧树脂有机聚酰封闭异氰酸酯主要原料合成固体分在70%阳离子型环氧聚合物树脂;

    An epoxy resin, an organic secondary amine, a polyamide and a blocked isocyanate are selected as main materials to synthesize polymer resin with solid content of 70%.

    youdao

  • 根据相连结活性氢原子的多寡有无,讨论了伯、、叔溶剂化能力的强弱。

    The number of active hydrogen atoms attached to nitrogen atom of different classes of amine determine their effectiveness in extraction of metals by solvation.

    youdao

  • 根据相连结活性氢原子的多寡有无,讨论了伯、、叔溶剂化能力的强弱。

    The number of active hydrogen atoms attached to nitrogen atom of different classes of amine determine their effectiveness in extraction of metals by solvation.

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定