alkene
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n.
烯烃，链烯；
英英释义
alkene[ 'ælki:n ]
n.any unsaturated aliphatic hydrocarbon
同义词：olefineolefin
权威例句
Transition metal catalyzed alkene and alkyne hydroacylation.Living alkene polymerization: New methods for the precision synthesis of polyolefins
Asymmetric alkene aziridination with readily available chiral diimine-based catalysts
Rhodium(III)-catalyzed arene and alkene C-H bond functionalization leading to indoles and pyrroles.
ChemInform Abstract: Asymmetric Alkene Aziridination with Readily Available Chiral Diimine- Based Catalysts.
The Modified Julia Olefination: Alkene Synthesis via the Condensation of Metalated Heteroarylalkylsulfones with Carbonyl Compounds
Palladium(II)-Catalyzed Alkene Functionalization via Nucleopalladation: Stereochemical Pathways and Enantioselective Catalytic Appli...
Isoreticular chiral metal-organic frameworks for asymmetric alkene epoxidation: tuning catalytic activity by controlling framework c...
Quaternary ammonium tetrakis(diperoxotungsto)phosphates(3-) as a new class of catalysts for efficient alkene epoxidation with hydrog...
Metal vinylidenes and allenylidenes in catalysis: applications in anti-Markovnikov additions to terminal alkynes and alkene metathesis
1. The Alkene Double Bond: A Focus of Reactivity.
烯烃的双键：重点是反应活性。
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2. A hydrocarbon was known to be either an alkene or alkane.
某碳氢化合物已知可能是烯烃或是烷烃。
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3. The alkene content in gasoline can be reduced, and its octane number can be raised by adding DS Z3 catalyst in catalytic cracking process.
此外，使用催化裂化脱硫催化剂DSZ3还可以使汽油在烯烃含量下降的同时，辛烷值有所增加。
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4. The alkylation of benzene with long - chain alkene was investigated using P - Al solid acid instead of HF acid as catalyst for the first time.
首次采用磷铝固体酸催化剂替代氢氟酸对苯与长链烯烃的烷基化反应过程进行了研究。
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5. F500 series of waterborne fluorocarbon resins are prepared by emulsion polymerization with chlorotrifluoroethylene and non-fluoro alkene as raw materials.
以三氟氯乙烯单体与非氟烯烃单体为原料，经乳液聚合制备了F500系列水性氟树脂。
www.chemyq.com
6. The comparison of heterogenized and homogenous catalyst on epoxidation of different alkene was also given.
同时与均相催化剂空气环氧化不同烯烃的性能进行了对比。
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7. The second-stage hydrogenation reaction is mainly hydrodesulfurization and alkene saturation hydrogenation of pyrolysis gasoline.
裂解汽油的二段加氢反应主要是脱硫、烯烃饱和等反应。
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8. The organic peroxide is a sort of important initiator in alkene polymerization industry.
有机过氧化物是烯烃聚合工业中重要的引发剂。
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9. Supercritical conditions can enhance the conversion of isooctane but lower the alkene selectivity simultaneously.
超临界条件与常压相比能提高异辛烷的转化率，但同时使烯烃选择性降低。
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10. An unsaturated hydrocarbon belonging to the alkene homologous series.
不饱和碳氢化合物，属于烯烃同系物。
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11. Synthesis of soluble fluorinated alkene with hydroxyl and preparation of fluorinated polyurethane coatings were described.
本文介绍了可溶性的带羟基含氟烯烃的合成及含氟聚氨酯涂料的制备。
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12. This paper reviews the catalytic system of methyl formate reacting with alkene for synthesis of esters, in addition, the reaction mechanism is also discussed.
本文系统介绍了甲酸甲酯与烯烃反应合成酯的催化体系，并对反应机理进行了讨论。
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13. Method The glutinous ozone oxide was produced rapidly by inserting the ozone-bearing oxygen current in the nonaqueous solution of liquid alkene.
方法将含有臭氧的氧气流，通过液态烯烃的非水溶液中，迅速生成粘糊状的臭氧化物。
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14. Conclusion The form of the alkene ozone oxide and its reaction course of ozone chain isomerization are likely to be the free radical ones.
结论烯烃臭氧化物的形成及其臭氧链异构的反应历程，属游离基型的可能性更大。
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15. The third is unsaturated alkene.
第三为不饱和烯烃；
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16. As the alkene content of motor vehicle petrol containing catalytic fraction is large, it is difficult to measure accurately by the fluorescent indicator adsorption method.
含催化馏份的车用汽油，烯烃含量大，用荧光指示剂吸附法不易测准汽油的族组成。
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17. In recent years, special attention has also been devoted to hydroesterification of alkene using methyl formate instead of CO/CH3OH.
近年来，利用甲酸甲酯替代CO/CH3OH与烯烃的加氢酯化反应也逐渐成为研究热点。
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18. The suggestion for developing the technics of alkene preparation from natural gas in China was proposed.
并对我国今后天然气制烯烃技术的开发提出了建议。
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19. The preparation of sodium malonyloxyborohydride in situ and its selective hydroboration alkene are described.
叙述了丙二酰氧基硼氢化钠的制备及其原位与烯烃的选择性硼氢化反应。
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20. The technologies of producing synthetic gas, methanol, dimethyl ether, alkene and synthetic oil from natural gas are discussed emphatically.
着重探讨了天然气制合成气、甲醇、二甲醚、烯烃以及合成油的生产工艺。
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21. In their lab studies, 2-ACP latched onto a type-2 alkene called acrolein and prevented the toxin from damaging nerve cells.
据实验室研究，2-ACP能够附着于一种2型烯烃——丙烯醛，并阻止其损伤神经细胞。
article.yeeyan.org
22. Compared with crude petroleum, F-T synthetic crude oil mainly has paraffin and alkene, containing few cycloparaffin and arene, with extremely low sulfur and nitrogen.
同石油原油相比，F-T合成粗油品主要由链烷烃和链烯烃组成，环烷烃和芳烃含量很少，且具有硫、氮等含量少的优点。
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23. Since 70′s years, the technology of manufacturing alkene from natural gas has been a focus of national and international study.
从70年代以来，天然气制烯烃技术一直是国内外研究的热点课题。
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24. The analysis results showed that the rapid and accurate determination of alkene content in jet fuels can be achieved by using near infrared spectrum analysis.
分析结果表明，近红外光谱分析可实现对喷气燃料烯烃含量的快速准确测定。
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25. Objective To study and to determine the structure of alkene by the ozone oxidation of alkene and its hydrolysis reaction course.
目的通过烯烃的臭氧化及其水解的反应历程，研究和测定烯烃的结构。
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26. The electrolytic titration method was compared with the inverse titration method in this paper for the accuracy of the measuring alkene.
比较了电位滴定法和反滴定法测定烯烃含量的准确性。
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27. The Hofmann rule----yield mainly the least substituted alkene.
霍夫曼规则-----主要消除产物是取代基较少的烯烃。
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28. In order to make the content of alkene in FCC gasoline meet the requirements of the national new standard, the alkene in FCC gasoline must be transferred into isobutene and aromatic hydrocarbon.
为了使催化裂化（FCC）汽油中烯烃含量满足国家的新标准的要求，需要将汽油中的烯烃转化为异构烷烃和芳烃。
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29. In order to make the content of alkene in FCC gasoline meet the requirements of the national new standard, the alkene in FCC gasoline must be transferred into isobutene and aromatic hydrocarbon.
为了使催化裂化（FCC）汽油中烯烃含量满足国家的新标准的要求，需要将汽油中的烯烃转化为异构烷烃和芳烃。
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30. This article reviews recent progress in nucleophilic reactions of theα- carbon in vinylidene ruthenium complexes. The nucleophiles include alkene, alkyne, alcohol, acid, amine, water, etc.
综述了近几年钌亚乙烯基络合物中间体α碳的亲核反应。亲核试剂包括烯烃、烃、、、、等。
-- 来源 -- www.ilib.cn
31. The hydrocarbon must be an alkene.
这个碳氢化合物必定是烯烃。
-- 来源 -- 英汉 - 辞典例句
32. A hydrocarbon was known to be either an alkene or alkane.
某碳氢化合物已知可能是烯烃或是烷烃。
-- 来源 -- 英汉 - 辞典例句
33. Detailed Alkene Determination by Bromination and Gas Chromatography with Atomic Emission Detection
气相色谱-原子发射光谱和溴加成法联合测定含烯烃汽油中的单体烯烃
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34. The betaine will collapse to the alkene only when these two functions are eclipsed.
只有当这两个基团移至重迭位置时碘盐才能裂解为烯烃。
-- 来源 -- 英汉 - 辞典例句
35. "Olefin (or alkene) Any unsaturated hydrocarbon containing one or more pairs of carbon atoms linked by a double Bond (see covalent Bond, saturation)."
烯烃:含有一对或多对由双键连接的碳原子的一类不饱和烃。
-- 来源 -- 英汉 - 翻译样例 - 自然
36. Any of a class of unsaturated open-chain hydrocarbons such as ethylene, having the general formula CnH2n; an alkene with only one carbon-carbon double bond.
烯烃任何一类不饱和的开链碳氢化合物，如乙烯，总分子式为CnH2n；仅有一个碳—碳双链的链烯
-- 来源 -- 英汉 - 短句参考
37. As the alkene content of motor vehicle petrol containing catalytic fraction is large, it is difficult to measure accurately by the fluorescent indicator adsorption method.
含催化馏份的车用汽油,烯烃含量大,用荧光指示剂吸附法不易测准汽油的族组成。
-- 来源 -- www.ilib.cn
38. a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals.
一种无色易燃的气态烯烃，从石油和天然气中提取，用于制造其他许多化学品。
-- 来源 -- 汉英 - 翻译参考
39. The formed long and linear chain alkyl benzene changes into benzene methyl and alkene through β-scission and monomolecular homolysis, and then benzene methyl shifts to the position of α-Carbon in the long chain alkyl benzene through H-transfers.
已形成的长直链烷基苯通过β分裂、单分子均裂形成苯甲基、烯烃，苯甲基通过氢转移到长链烷基苯的α碳上，烯烃再与α碳结合形成带支链的烷基苯。
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alkene
