报道了溴代甲基环丙烷的合成。
用丁基锂处理,即得到环丙烷。
从而以高收率得到带各种取代基的环丙烷。
介绍了溴环丙烷的合成,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.
本文包括两部分:(1)三取代环丙烷和含氟炔酮;
This paper contains two parts: (1) Trisubstituted Cyclopropane and FluorinatedAlkynone;
本文综述了合成环丙烷氨基酸类化合物的近期研究进展。
This paper reviews the recent progress in the synthesis of cyclopropane amino acids.
亚胺基杂环丙烷季铵盐的阳离子,一定是按协同反应的方式开环的。
The aziridinium ions must all be opened by a concerted process.
环丙烷一种极易燃易爆的无色气体,C3H6,有时用作一种麻醉剂。
A highly flammable, explosive, colorless gas, C3H6, sometimes used as an anesthetic.
报道了1-溴-1- 乙氧基环丙烷的合成路线和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.
本文主要研究了一种利用氮杂环丙烷开环反应合成邻位氨基醇的有机新反应。
This paper reports a new green ring opening reactions of aziridines with H_2O.
用密度泛函B3LYP方法研究了过渡金属钐类卡宾与乙烯的环丙烷化反应的机理。
The cyclopropanation reaction of ethylene with samarium (II) carbenoid was studied by means of the B3LYP hybrid density functional method.
乙烯基环丙烷化合物有高度的反应活性,在有机合成中有着重要的作用,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.
尚无对环丙烷刺孢曲霉素的广泛研究,但已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.
用醇作溶剂、微量的浓硫酸作催化剂,稠合双环氮杂环丙烷衍生物可发生区域选择性氮杂环开环反应。
Bicyclic fused aziridines can generate regioselective ring opening reaction with various alcohols, catalyzed by slight concentrated sulfuric acid.
采用松香、三甲胺和环氧氯丙烷为原料,溶剂法合成了阳离子松香。
The cationic rosin was synthesized by solvent method, with rosin, trimethylamine and epoxy chloropropane as raw materials.
采用反应精馏新工艺由环氧丙烷水合制丙二醇。
A new process of Hydration of propylene oxide to glycols was introduced.
用氯醇法生产的环氧丙烷中所合杂质除有乙醛、丙醛外,还有烃类、环氧化物、卤代烷、丙酮、醇类等。
Chlorohydrin production of propylene oxide with the impurities except for acetaldehyde, propionaldehyde and hydrocarbon, epoxides, halogenated alkanes, acetone, alcohols, such as.
本文以马铃薯淀粉为原料,环氧丙烷为醚化剂,氢氧化钠为催化剂对低取代度羟丙基淀粉的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.
环氧丙烷是一种重要的有机化工原料。
Propylene oxide is important material of organic chemistry industry.
采用环氧氯丙烷为交联剂,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.
总结了电石渣生产环氧丙烷工艺中的设计与应用。
Design and application of carbide slag in propylene oxide production were summarized.
这是环境友好、无联产品、经济合理的制环氧丙烷的新方法。
This is a novel, environmentally friendly and economical method for making propylene oxide without co-product.
在碱性条件下用环氧丙烷对壳聚糖进行了改性研究。
Chitosan was modified with propylene oxide in the presence of sodium hydroxide.
纤维素纤维改性剂CM系由叔胺与环氧氯丙烷合成。
Modifier CM is synthesised by tertiary amine and epoxy chloropropane for improving properties of cellulose fibre.
介绍了电石渣中的大量机械杂质和化学杂质对环氧丙烷生产的影响及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.
石灰乳是生产化工产品环氧丙烷的主要原料之一。
The lime cream is one of main materials to produce the chemical product epoxypropane.
石灰乳是生产化工产品环氧丙烷的主要原料之一。
The lime cream is one of main materials to produce the chemical product epoxypropane.
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