基本释义:

反式异构体

网络释义

1)trans-isomer,反式异构体

2)trans-trans isomer,反-反式异构体

3)cis-trans isomer,顺-反式异构体

4)trans-isomerism,反式异构

5)Z and E isomer,顺式和反式异构体

6)meridional isomer,顺-反式异构体(cistrans isomer),1,2,4异构体

用法和例句

The trans-isomer(2)of milnacipran hydrochloride(1)was synthesized from(±)-(1S,2S)-2-hydroxymethyl-1-phenylcyclopropanecarboxylic acid via bromination, acyl chloridation, amidation, Gabriel reaction and HClsalt formation in 19% overall yield.

(±)-(1S,2S)-2-羟甲基-1-苯基环丙羧酸经溴化、酰氯化、酰胺化、Gabriel反应,最后成盐制得盐酸米那普仑(1)的反式异构体(2),总收率19%。

The amino cyclohexylcarbinols(9) derived from the fused isxoazolidine(8) were a mixture of cis and trans isomers.

从稠合的四氢异?0唑（8）所得到的氨基环已基甲醇（9）则是顺式和反式异构体的混合物。

In the second route and third route, the insertion of benzoylation can effectively protect the active methylol radical and may advantageously be employed to facilitate the separation of cis- and trans-forms of the intermediate.

“路线二”和“路线三”中用苯甲酯保护活泼羟基，并可以分离顺式和反式异构体。

The racemic purity of cis- and trans-DCCA was 91.4% and 93.0%, respectively.

顺、反式二氯菊酸几何异构体含量分别为91.4％、93.0％。

Determination of Trans Fatty Acid Isomers in Foodstuffs and Investigation on Chinese Dietary Intakes of Trans Fatty Acids;

食物中反式脂肪酸异构体的分析及我国居民反式脂肪酸摄入量的调查

Below 400°, the main reaction is the cis to trans isomerization.

在较低温度时(400°以下),主要反应是顺式物异构化为反式物的反应.

Separation and detection of cis and trans-isomers of propiconazole by chromatography

色谱法分离与检测丙环唑顺反异构体

Study on Isomerization Reaction of Turpentine Catalyzed by Solid Acid;

松节油固体酸催化异构化反应的研究

A NEW METHOD OF DETERMINING THE CONFIGURATION OF GEOMETRICAL CIS,TRANS-ISOMERS OF COMPLEXES IN SOLUTION

确定溶液配合物顺反异构体构型的新方法

THE ELECTRONIC STRUCTURES AND BIOLOGICAL? ACTIVITIES OF METHOMYL′S CIS? ?AND TRANS?ISOMERS

灭多威顺、反异构体的电子结构和生物活性

The Difference of English and Chinese Thinking Pattern and Their Reflection-In Sentence Structure;

英汉思维模式差异及其在句子结构中的反映

At the photostationary state the quantities of cis isomers are about 92%.

在光稳定态 ,顺式异构体的量约为 92 %。

Determination of Cis-trans Isomers of Dialkyl 1.2-cyclohcxanedicarboxylate

1.2-环己二甲酸二烷基酯的顺反异构体的测定

Study on Syn-and Anti-perillartine by NMR;

利用NMR技术对紫苏葶顺反异构体的研究

Research on the grid computing mode and architecture under the condition of heterogeneity

异构环境下网格计算模式及体系结构研究

ABNORMAL SENSIBILITY OF REFLECTION STRUCTURES FOR WEAK VIBRATIONS ON THE SHORT-WAVE SIDE OF RESTSTRAHLEN BAND OF CRYSTALS

晶体剩余反射带短波边弱振动反射光谱结构的异常敏感性

Substances which have identical molecular formulas but different strucural formulas, are known as isomers.

凡具相同分子式但不同结构式的物质称为异构体。

Research on Olefin Isomerization Reaction in Ionic Liquids and Synthesis of Drug Intermediates

离子液体中烯烃异构化反应的研究和药物中间体的合成

Research of Heterogeneous Data Integration Based on the Ontology and XML Schema;

基于本体和XML模式的异构数据集成研究