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





烯

烯

烯
钠,食盐
]卤砂,
铵
烯;

烯
]
钾
钙
氢;氢氟酸
铁(用作蚀刻画腐蚀剂)
]
根离子
镁
]
苄;苄基

铝
铝
锌
]
钡
]亚硫酰

亚锡;[
]二
锡

硷Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.
以苯甲酰
为原料,经酰
,还原,环
等反应
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
学品的开发及生产进展,包括二苯甲酮类、
代甲酯类、异氰酸酯类、酰
类、碳酸酯类

。
Cuprous chloride is an important inorganic fine chemical product,which was produced by nantokite reduction method.
[摘要] 
亚铜是一种重要的无机精细
工产品。
Several production methods,market demands and development of sulfinyl chloride are introduced in this paper.
本文介绍了
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


铝。
Taking pyromellitic dianhydride and thionyl chloride as raw key material, 2,5-bis(methoxycarbonyl)terephthaloyl chloride was synthesized.
以
亚矾及均苯四甲酸酐为主要原料通过酰
法
成了对位均苯二甲酯二酰
。
Cyclopropane carbonyl chloride is an important intermediate.
环丙甲酰
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-甲氨基甲酰
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
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
溶液作基体改进剂,锆涂层热解石墨管为原子
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
适的酰
剂。
The best reaction condition are determined when synthesizing dibutyl maleate by using sloid chloride as catalyst.
提出了以固体

为催
剂
成马来酸二丁酯的最佳反应条件。
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羟甲基笼状双环磷酸酯分别与戊酰
、己酰
发生酰
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
铵)为相转移催
剂
成了异烟酸
酯。
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
胺作相转移催
剂可在常压下由苯胺和溴
烷
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
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

二醇-400作三相相转移催
剂,以氢氧
钾的水溶液作碱,从苯
腈和苄基
出发
成了苯
腈的单烷基
-α-苄基苯
腈。
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