• Alkenes react with water and halogens to form halohydrins by an addition reaction.

    烯烃卤素发生加成反应生成卤代醇。

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  • Light alkenes play a significant role in the petrochemical industry.

    低碳烯烃在石化工业举足轻重的作用

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  • Table 2 shows names for some alkyl groups, alkanes, alkenes and alkynes.

    2显示了一些烷基烷烃烯烃炔烃命名

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  • It provides a useful vehicle for transforming unsaturated acids to their corresponding alkenes.

    使不饱和变成相应的烯烃提供了一个有用的中间体。

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  • Prediction of the critical volume of alkenes using a quantitative structure property relationship;

    提出了一种基于元素和化学键估算有机物临界体积的新方法。

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  • The synthesis and application of vinylic tellurides in stereoselective synthesis of alkenes were reviewed.

    综述了近年来烯化合物合成及其立体选择合成中的应用

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  • Exposure to type-2 alkenes in the environment has already been linked with cancer, heart disease, and other problems.

    科学家已经癌症心脏病其他疾病暴露含有2型烯烃的环境关联起来。

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  • As evidence, he points to studies showing that Alzheimer's patients have large amounts of type-2 alkenes in their brains.

    还出示了能够证明阿尔兹·海患者脑中含有大量2烯烃研究作为证据

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  • The acid sites of zeolite Y catalysts for alkylation of aromatics with long-chain alkenes are determined with IR and TPD.

    烷基合成洗涤剂重要原料,是由苯与长链烯烃酸性催化剂作用下烷基化反应生成的。

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  • The application of metal complex as the catalysts of aerobic oxidation of alcohols and epoxidation of alkenes are reviewed.

    综述了各种金属络合物催化剂在分子作为氧化剂氧化烯烃环氧化上的应用

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  • The position of intersection of some alkenes has been predicted by this method and checked successfully by our experiments.

    使用理想保留体积方法预测烯烃交点位置,并用实验作了验证。

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  • This article reviews recent methods used in organic synthesis for the stereoselective reduction of alkynes to Z or E alkenes.

    综述有机合成领域中,通过炔烃立体选择性还原制备Z-E-烯烃近期方法

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  • For higher olefin that has poor solubility in water, the hydroformylation reaction rate is much less than short-chain alkenes.

    对于水溶性烯烃氢甲酰化反应速度远远低于低碳烯烃。

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  • The review is focused on the recent development of asymmertric synthesis of chiral epoxides by biocatalyzing prochiral alkenes.

    手性环氧化物合成上具有重要应用价值。

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  • The invention relates to a method of preparing light alkenes by adopting a two-stage process and taking syngas as raw material.

    发明涉及一种以合成气为原料段法制备低碳烯烃方法

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  • And cigarette smoking increases the risk of Alzheimer's by more than 150 percent, possibly because of the type-2 alkenes in tobacco smoke.

    二手烟将罹患阿尔兹·海默症风险提高1.5倍,很可能是因为烟草中含有2型烯烃。

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  • The impurities in fatty alcohols are single-carbon alkanes and alkenes through the analysis and identification of C14-16 alcohols by GC-MC.

    本文通过色质谱C14-16分析鉴定,弄清脂肪醇中的杂质单碳烷烃烯烃

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  • This paper reports the route of synthesis multisubstituted alkenes by addition reaction of alkyne zirconalkylation with zirconocene complexes.

    本文报道络合物炔烃烷基化加成,合成多取代烯烃,产率较高。

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  • The process provides a facile way of producing hydrocarbyl perchlorates, from alkenes, cycloalkenes, aralkenes, alkanols, cycloalkenes and aralkanols .

    工艺程序提供了从链烯、环烯、芳链烯、链烷醇、环烷醇、芳烷醇来制备氯酸烃基酯方便方法

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  • The progress in alkylation reaction of benzene with long chain alkenes was introduced from the two aspects of catalyst research and reaction technology.

    催化剂研究反应技术方面介绍了烯烃烷基化反应技术研究开发进展

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  • Based on the reaction medium and the elements in the catalysts, the recent progresses of epoxidation of alkenes with hydrogen peroxide have been reviewed.

    反应介质催化元素为线索,对双氧水为氧源烯烃环氧化反应最新研究进展进行综述。

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  • The carbon blue mildew alkenes medicine in 2005,2006 year maintains 95% above sensitive rate, in 2007 starts its sensitivity to drop suddenly, in 2008 sensitive rate has 30%;

    烯类药物2005年、2006年度保持95%以上敏感,2007年开始敏感性急剧下降,2008年敏感率只有30%;

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  • Neutralizing type-2 alkenes in the brain will likely be a good strategy for fighting Alzheimer's, said D. Allan Butterfield, a biological chemist at the University of Kentucky, Lexington.

    供职于肯塔基州列克星敦大学生物化学家AllanButterfield博士认为,中和脑内的2型烯烃可能对抗阿尔兹海默症的方法

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  • About forty alkenes were prepared by dehydration of the corresponding alcohols in the presence of the ferric sulfate hydrate as catalyst. The yields of these alkenes were from 85% to 97%.

    研究了硫酸铁水合物催化下,不同脱水反应,结果表明催化剂叔醇脱水成烯的反应有较好的催化效果,生成烯烃的率为85~97%。

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  • Symmetrical diynes were synthesized by ligand-free copper-catalyzed homocoupling reaction of 1,1-dibromo-1- alkenes using a DBU/DMSO system at room temperature in good to excellent yields.

    本文以1,1-二溴-1-烯烃为原料,铜作为催化剂,不添加任何配体,有机碱DBU的作用下,在DMSO溶剂中,室温合成对称二炔,得到中等优秀的产率

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  • In this article, the recent application in recent years of metal complexes composed of binaphthyl derivatives in asymmetric hydrogenation of prochiral alkenes, ketones and imines are reviewed.

    综述近年来衍生物作为手配体构成金属络合物前手性亚胺的不对称氢化反应中的应用

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  • Arsine is an alkenes gas which has extensive use and extremely difficult technology in electronic gases. It is an important sign whether technologically advance of the electronic gases in a country.

    电子气体用途十分广泛技术难度非常大烷类气体一个国家电子先进与否重要标志

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  • Arsine is an alkenes gas which has extensive use and extremely difficult technology in electronic gases. It is an important sign whether technologically advance of the electronic gases in a country.

    电子气体用途十分广泛技术难度非常大烷类气体一个国家电子先进与否重要标志

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