Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.
以苯
酰
为原料,经酰化,还原,环合等反应合成左旋西替利嗪盐酸盐,反应总收率为8.05%。
化物








化钠,食盐
化铵

;
化

化钾
化钙
化氢;氢氟酸
化铁(用作蚀刻画腐蚀剂)
根离子
化镁
化苄;苄基
化铝
化铝
化锌
化钡
化亚锡;[化]二
化锡
化
硷Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.
以苯
酰
为原料,经酰化,还原,环合等反应合成左旋西替利嗪盐酸盐,反应总收率为8.05%。
This paper reviews the research and development of phosgene Derivates,including diphenyl ketone,chlorocarbonate,isocya-nate,acyl chloride and carbonates.
本文综述了光气下游精细化学品的开发及生产进展,包括二苯
酮类、


类、异氰酸
类、酰
类、碳酸
类化合物。
Cuprous chloride is an important inorganic fine chemical product,which was produced by nantokite reduction method.
[摘要]
化亚铜是一种重要的无机精细化工产品。
Several production methods,market demands and development of sulfinyl chloride are introduced in this paper.
本文介绍了
化亚砜的生产方法、市场需求及发展前景。
The high-effective water treatment agent-polyaluminium chloride is produced by industrial aluminiferous waste slag.
利用工业含铝废渣生产高效水处理剂聚合
化铝。
Taking pyromellitic dianhydride and thionyl chloride as raw key material, 2,5-bis(methoxycarbonyl)terephthaloyl chloride was synthesized.
以
化亚矾及均苯四
酸酐为主要原料通过酰
法合成了对位均苯二
二酰
。
Cyclopropane carbonyl chloride is an important intermediate.
环丙
酰
是一种重要的中间体。
The various effects on synthesis of N-methyl-carbamyl chloride were studied.Temperature is most important one.
介绍了影响N-
氨基
酰
合成的各种因素,其温度是主要影响因素。
Long-term intracerebroentricular infusion of potassium chloride preents the deelopment of deoxycorticosterone–salt hypertension.
长期脑室内输注
化钾会预防脱氧皮质酮-盐高血压的产生。
N-oleoyl alanine was prepared by the reaction of alanine with chlorides under alkali solution.
将油酸酰
和丙氨酸在碱性溶液中反应制备N-油酰基丙氨酸。
Tartrate solution and zirconyl chloride were used as the matrix modifier for coating graphite tube.
采用酒石酸-锆复合溶液作基体改进剂,锆涂层热解石墨管为原子化器。
The propionyl chloride was found to be the appropriate acylating agent in terms of the cost.
通过成本比较,认为丙酰
是合适的酰化剂。
The best reaction condition are determined when synthesizing dibutyl maleate by using sloid chloride as catalyst.
提出了以固体
化物为催化剂合成马来酸二丁
的最佳反应条件。
Chloroform being solvent,under bath heat,4 hydroxymethyl caged bicyclic phosphate acylated with pentanoyl chloride and hexanoyl chloride dividedly.
用
仿作溶剂,在浴温条件下,4羟
基笼状双环磷酸
分别与戊酰
、己酰
发生酰化反应。
Synthesis of ethyl iso nicotinate using BTEAC (benzyl triethyl ammonium chloride) as phase transfer catalyst was studied.
以BTEAC(苄基三
基
化铵)为相转移催化剂合成了异烟酸
。
Preparation of ethylene bis stearamide using stearyl chloride and ethylenediamine (EDA) as raw materials has been studied.
研究了以
二胺和硬脂酰
为原料制备
撑双硬脂酰胺的反应,讨论了原料配比、反应时间、反应温度的影响。
N,N-diethylaniline was synthesized from aniline with bromoethane using tetraethylammonium chloride as phase transfer catalyst under atmospheric presure.
用四
基
化胺作相转移催化剂可在常压下由苯胺和溴
烷合成N,N-二
基苯胺。
Some advice regarding chlorinity expressing measure and assessment method in the chloride ion permeability test is proposed.
并对混凝土
离子渗透性试验的
离子浓度表示和评价方法提出建议。
Content : mimimum 99.0 per cent of mercurous chloride (Hg 2 Cl 2 ).
本品含
化亚汞(Hg 2 Cl 2 )不得少于99.0%。
Alkylation of Phenylacetonitrile was realized from phenylacetonitrile and benzyl chloride by using PS-PEG-400 as triphase phase transfer catalyst.
摘要利用固载化聚
二醇-400作三相相转移催化剂,以氢氧化钾的水溶液作碱,从苯
腈和苄基
出发合成了苯
腈的单烷基化物-α-苄基苯
腈。
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