卤烃
- 与 卤烃 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
When the proportion of the aryl halides was changed,the aromatic products with different number substitutes could be obtained.
通过研究我们发现,活泼酰基与烯丙基在偶联反应中活性相当,可得到不同成环方式的产物,且当改变卤代物比例时,将得到不同数量取代芳烃的产物。
-
It can be seen from the above initial results, the two N-heterocyclic carbene palladium complexes should participate in the catalytic reaction or at least did partly.
初步结果可以得出,这两种N-杂环卡宾钯络合物参与或部分参与了卤代芳烃的催化偶联过程,对产物的顺利生成有某种程度的贡献。
-
We investigate the reaction involving alkynes and α-halophenylethanone in presence of catalyzer to occur nucleophilic addition reaction.
我们还对炔烃与α-卤代苯乙酮在催化剂存在下发生亲核加成反应做了一系列的探索。
-
The destruction of ozone molecules in the ozone layer by chemical reaction with materials released from human activities, including chlorofluorocarbons and halons.
从人类活动中释放出来的物质(包括氟氯烃和卤代烷哈龙)同臭氧层中的臭氧分子发生化学变化,导致其破坏。
-
The reaction of perfluoroalkyl bromide and a,w-perfluoralkylene dibromide in sulfinatodehalogenation system with olefins and the differences in behavior between perfluoroalkyl bromides and their corresponding iodides are reported.
本文报道溴代全氟烷和α,ω-二溴代全氟烷在亚磺化脱卤反应体系中与烯烃的反应及其与相应的碘代全氟烷的区别。
-
In our research on study chemical reaction of active methylene compounds and brom-acetophenone. Because of brom-acetophenone is compound that contain carbonyl and halogen ,which will take place electrophilic substitution and nucleophilic addition. When active methylene compounds are ethyl acetoacetate and β-diketone, controlling reaction condition, we have found that mono-substitution's production and di-substitution's. production is isolated; active methylene compounds are acetoacetanilide and acetoacetanilide derivate, pyrrolidin-2-one derivants were obtained by substitution and close-ring reaction .but there is no report about it.
本文是让活泼亚甲基类化合物与溴代苯乙酮发生化学反应,由于溴代苯乙酮是含有羰基的卤代烃结构,它可以发生亲电取代和亲核加成反应,当活泼亚甲基类化合物为乙酰乙酸乙酯和β-二酮时,控制反应条件可以发生单取代和双取代两种产物;当活泼亚甲基类化合物为乙酰乙酰芳胺类化合物来反应时,溴代苯乙酮中的羰基与氨基会发生分子内的关环反应生成吡咯烷-2-酮衍生物,这在以前的研究中是没有发现的。
-
"General anesthesia induces loss of consciousness, most often using hydrocarbon s (e.g., cyclopropane, ethylene); halogenated hydrocarbon s (e.g., chloroform, ethyl chloride, trichloroethylene); ethers (e.g., ethyl ether or vinyl ether);"
全身麻醉药会让人丧失意识,最常用的是烃;卤化氢(如氯仿、氯乙烷、三氯乙烯);醚如乙醚、乙烯醚
-
"General anesthesia induce s loss of consciousness, most often using hydrocarbons (e.g., cyclopropane, ethylene); halogenated hydrocarbons (e.g., chloroform, ethyl chloride, trichloroethylene); ethers (e.g., ethyl ether or vinyl ether);"
全身麻醉药会让人丧失意识,最常用的是烃;卤化氢(如氯仿、氯乙烷、三氯乙烯);醚如乙醚、乙烯醚
-
"General anesthesia induces loss of consciousness, most often using hydrocarbons (e.g., cyclopropane, ethylene); halogenated hydrocarbons (e.g., chloroform, ethyl chloride, trichloroethylene); ethers (e.g., ethyl ether or vinyl ether);"
全身麻醉药会让人丧失意识,最常用的是烃;卤化氢(如氯仿、氯乙烷、三氯乙烯);醚如乙醚、乙烯醚
-
Alkyl balides react with sodium borohydride and selenium in the presence of solid sodium hydroxide to give dialkyl selenides in excellent yields.
在固体氢氧化钠存在下,卤代烃及用氢化钠与硒粉作用,在乙醇溶液中制得二烃基硒醚。
- 推荐网络例句
-
I didn't watch TV last night, because it .
昨晚我没有看电视,因为电视机坏了。
-
Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.
今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。
-
I'm running my simile to an extreme.
我比喻得过头了。