• 报道了溴代甲基环丙烷合成

    The synthesis of (bromomethyl) cyclopropane was reported.

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  • 丁基处理,即得到丙烷

    Treatment with butyl lithium gave rise to cyclopropanes .

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  • 从而收率得到带各种取代基的环丙烷

    A variety of cyclopropanes are thus produced in good yield.

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  • 介绍了丙烷合成研究了较佳的工艺方法

    The synthetic method of bromocyclopropane is introduced and the best synthetic route is studied in this paper.

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  • 本文包括部分:(1)三取代环丙烷含氟炔酮

    This paper contains two parts: (1) Trisubstituted Cyclopropane and FluorinatedAlkynone;

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  • 本文综述了合成丙烷氨基酸类化合物近期研究进展

    This paper reviews the recent progress in the synthesis of cyclopropane amino acids.

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  • 胺基杂环丙烷季铵盐的阳离子一定协同反应的方式的。

    The aziridinium ions must all be opened by a concerted process.

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  • 环丙烷易燃易爆无色气体C3H6有时用作麻醉剂

    A highly flammable, explosive, colorless gas, C3H6, sometimes used as an anesthetic.

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  • 报道了1--1- 乙氧基环丙烷合成路线实验室百克量工艺条件

    This paper reports the synthetic method for 1-bromo-1-ethoxy cyclopropane and the best synthetic conditions for hectogram production in the laboratory.

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  • 本文主要研究了一种利用氮杂环丙烷反应合成邻位氨基醇有机反应。

    This paper reports a new green ring opening reactions of aziridines with H_2O.

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  • 密度泛函B3LYP方法研究过渡金属钐类卡乙烯环丙烷反应机理。

    The cyclopropanation reaction of ethylene with samarium (II) carbenoid was studied by means of the B3LYP hybrid density functional method.

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  • 乙烯基环丙烷化合物高度反应活性有机合成中有着重要作用日益受到人们的关注

    Vinyl cyclopropane compounds with a high degree of reactivity in organic synthesis plays an important role for increasing attention.

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  • 尚无环丙烷刺孢曲霉素的广泛研究报道它有杀昆虫的活性,能杀灭鳞翅类作物害虫棉铃虫

    Cycloechinulin has not been extensively studied but has been reported to exhibit insecticidal activity against the lepidopteran crop pest Helicoverpa zea.

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  • 作溶剂、微量硫酸作催化剂,氮杂丙烷衍生物可发生区域选择性氮杂反应

    Bicyclic fused aziridines can generate regioselective ring opening reaction with various alcohols, catalyzed by slight concentrated sulfuric acid.

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  • 采用松香三甲胺丙烷原料溶剂合成了阳离子松香。

    The cationic rosin was synthesized by solvent method, with rosin, trimethylamine and epoxy chloropropane as raw materials.

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  • 采用反应精馏工艺丙烷水合制丙二

    A new process of Hydration of propylene oxide to glycols was introduced.

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  • 氯醇生产丙烷所合杂质乙醛丙醛外还有烃类氧化物卤代丙酮醇类

    Chlorohydrin production of propylene oxide with the impurities except for acetaldehyde, propionaldehyde and hydrocarbon, epoxides, halogenated alkanes, acetone, alcohols, such as.

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  • 本文马铃薯淀粉原料丙烷为醚化剂,氢氧化钠催化剂对低取代度羟丙基淀粉制备工艺进行了研究。

    Synthesis technology and property of hydroxypropyl starch by using potato starch as raw material, propylene oxide as etherization reagent and sodium hydroxide as catalyst, were studied in this paper.

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  • 丙烷种重要有机化工原料

    Propylene oxide is important material of organic chemistry industry.

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  • 采用氧氯丙烷联剂,以小麦淀粉为原料制备小麦交联淀粉。

    Wheat cross-linked starch was prepared from wheat starch by using epichlorohydrin as cross-linking agent.

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  • 总结了电石生产丙烷工艺中的设计应用

    Design and application of carbide slag in propylene oxide production were summarized.

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  • 友好、无联产品、经济合理丙烷方法

    This is a novel, environmentally friendly and economical method for making propylene oxide without co-product.

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  • 碱性条件下丙烷壳聚糖进行了改性研究。

    Chitosan was modified with propylene oxide in the presence of sodium hydroxide.

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  • 纤维素纤维改性剂CM丙烷合成。

    Modifier CM is synthesised by tertiary amine and epoxy chloropropane for improving properties of cellulose fibre.

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  • 介绍了电石中的大量机械杂质化学杂质丙烷生产影响由其所引起的生产控制方面的不稳定因素

    The influence on propylene epoxide by lots of mechanical admixture and chemical admixture in carbide slag, and the instability factors in production control were introduced.

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  • 石灰乳生产化工产品丙烷主要原料之一。

    The lime cream is one of main materials to produce the chemical product epoxypropane.

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  • 石灰乳生产化工产品丙烷主要原料之一。

    The lime cream is one of main materials to produce the chemical product epoxypropane.

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