查询词典 sulfur chloride

In view of the existence of the above shortcomings of traditional methods, using acetyl chloride instead of acetic acid as a raw material, do not use any catalyst, not heating, room temperature reaction synthesis of ethyl acetate.

鉴于传统方法存在以上缺点，采用乙酰氯代替乙酸作为原料，不使用任何催化剂，不加热，常温反应来合成乙酸乙酯。

The resultedα-methylamine was protected by acetyl chloride, and then was chlorosulfonated bychlorosulforic acid at -5℃-0℃followed by treatment with aqueous ammonia givingcompound A in 52.3% yield.

甲基胺再用乙酰基进行保护后，以HSO3Cl为试剂进行氯磺化反应，再用浓氨水进行反应，制得了乙酰基保护的苯磺酰胺类化合物。

Through the different concentrations of security agents on GSH conten, GST activity, ALS activity in different degree, basic verifies the methylene chloride acetyl groups were evil to reduce CFC sulfonylurea lung damage mechanism of corn.

通过不同浓度的安全剂对GSH含量，GST活性，ALS活性均有不同程度的促进作用，基本验证了二氯乙酰基恶唑烷类化合物减轻氯磺隆对玉米伤害的作用机理。我只有这些分数了，谢谢英语大侠了！

Stimulated astrocytes with Acetyl-β-Methylchline Chloride , Caffeine , Thapsigargin and carbonyl cyanide p- trifluomethoxphenylhydrazone by different types of combination, and observed their effects on 〓.

发现星型胶质细胞内的钙库包括：〓敏感和non—〓敏感的两种内质网钙库，可分别被MCh和CAF激活；线粒体钙库参与胞浆内Ca2+缓冲系统。

The phenyl acetate was synthesized from phenyl hydroxide and acetyl chloride by direct esterification and the factors influencing the synthesis were studied.Results showed that the optimal conditions were:n(C6H6O):n(C2H3OCl)=1:1.2,the amount of solvent cyclohexane was 40 mL(compared to 0.15 mol C6H6O),the reaction temperature was 20℃,and the reaction time was 5 h.

乙酸苯酯(分子式C8H8O2)是重要的药物中间体，它可以转化得到邻羟基苯乙酮和对羟基苯乙酮的混合物，可用于治疗急慢性黄疸型肝炎、胆囊炎等疾病，其中邻羟基苯乙酮是合成抗心律失常药盐酸普罗帕酮的重要中间体。

"UN1717 Acetyl chloride,Class 3(Class 8),PGII"8.1.6.9.2 — The type of packaging must now show the description, not just the UN packaging code, e.g. fiberboard box", not just "4G.

DGD中包装的描述不能只使用UN包装代码或缩写（包装代码或缩写只可用来做补充描述），例如&one fiberboard box (4G)&，而不能只是&4G&。

The compound V underwent two eliminations to attain the target compounds I_. On testing compound V, diethyl chlorophosphate was displaced with water or acetyl chloride, intermediate compounds VI and VII were isolated.

另外中间体化合物II_也是支持这个反应机理的重要证据，我们在反应过程中通过改变碱来控制消除的进程，以较高产率分离得到了双键化合物II_，本文还进一步考察了中间体II_的消除反应，也成功的完成了从双键II_向叁键I_的转换，从而证实了&一锅合成法&反应经历了双消除过程。

The synthesis of alkylcyclohexylbenzoic acid: take the synthesis of ethylcyclohexylbenzoic acid as a typical example. With the AlCl3 as the catalyst, cis+trans acetylcyclohexylbenzene is synthesized from the reaction of acetyl chloride, cyclohexene and benzene.

烷基环己基苯甲酸的合成研究：主要研究了乙基环己基苯甲酸的合成，以乙酰氯、环己烯、苯为原料，三氯化铝为催化剂，合成乙酰基环己基苯，用水合肼、氢氧化钾、一缩二乙二醇经过高温加热还原羰基(Wolff-黄鸣龙还原)，将所得到的乙基环己基苯用乙酰氯进行傅克酰基化得到乙基环己基苯乙酮，所得中间体经过处理之后直接得到反式产物，将反式异构体的乙酰基氧化得到反式烷基环己基苯甲酸。

The status of VCM and acetylene gas recovery by pressure swing adsorption in vinyl chloride production units were introduced.

介绍了在氯乙烯生产装置中，采用变压吸附工艺回收精馏尾气中的VCM和乙炔气的情况。

The influence of chloride ion concentration to the activated sludge in sewage was analyzed.

分析了污水中氯离子浓度对活性污泥的影响。

In other research, chondroitin is being investigated for use in several other conditions.

在其它研究，软骨素被调查用於几个其它情况。

They would make fun of him for having to work.

他们拿他的工作来开玩笑。