This investigation provided an environment-friendly process for the synthesis of methyl anthranilate.
摘要提供了一种环境友好的合成工艺制备香料邻氨基苯。
This investigation provided an environment-friendly process for the synthesis of methyl anthranilate.
摘要提供了一种环境友好的合成工艺制备香料邻氨基苯。
Objective: To study the simple synthetic methods of chloromethyl pivalate.
目的探讨合成特的简便工艺方法。
The main products of PET supercritical methanolysis are dimethyl terephthalate(DMT) and ethylene glycol(EG).
红外光谱检测解聚产物是纯度很高的对苯二二
(DMT)单体和乙二醇。
Anisic acid is separated from the residue of producing anisic aldehyde and synthetized methyl anisate.
从茴香油生产茴香醛的废渣、废液中提取副产品茴香,合成茴香
。
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
酐为主要原料通过酰
法合成了对位均苯二
二酰
。
Many popular mouthwashes contain flavor oils, including menthol, eucalyptol and methyl salicylate (wintergreen oil).
而许多常用的漱口药水则含有芳香油,包括薄荷脑、桉叶醇以及柳(冬青油)。
(-)-Methyl mandelate was produced by asymmetric reduction of methyl benzoylformate catalyzed by Saccharomyces cerevisiae LH1 screcned by our laboratory.
采用本实验室筛选到的酿酒酵母LH1催化苯酰
不对称合成(R)-(-)-扁桃
。
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
、
代
、异氰
、酰
、碳
化合物。
It is ascertained that the PABA may be N-dimethylated using dimethyl sulfate as a methylation agent.
确定以硫二
为N——
基化剂,对对氨基苯
PABA进行N——二
基化.
The polyester or copolyester can be converted into dimethyl terephthalate of binary acid and glycol by method of methanolysis.
介绍用醇醇解法把聚
或共聚
解聚成二元
二
和二元醇。
The primary synthetic methods of 4-hydroxycoumarin was reviewed starting from phenol, 2-acetylsalicylic acid, methyl salicylate, and o-hydroxyacetophenone respectively.
概述了4-羟基香豆素的合成方法,重点介绍了苯酚法,乙酰水杨法,水杨
法,邻羟基苯乙酮法。
The catalysts and reaction conditions have been studied for esterinterenange between propenyl carbonate and methanol to produce dimethyl carbonate (DMC).
研究了碳丙烯
和
醇经
交换制备碳
二
的催化剂及反应工艺条件。
A series of toxic products were produced after photocatalysis on ethanol, such as acetaldehyde, ethyl formate, ethyl acetate, diethoxymethane, 1,1-diethoxyethane.
如乙醇的反应产物包括乙醛,乙乙
,乙
,缩醛等一系列有害物质。
Two kinds of bis-hydroxyalkyl or bis-methyl formylate subtituted bis-ethylenedithio-tetrathiafulvalenes (BEDT-TTF) and their charger-transfer complexes (CT-complexes ) with TCNQ were synthesized.
合成了带双羟烷基及双基取代的两种双二硫代亚乙基四硫代富瓦烯(BEDT-TTF)的衍生物及其它们与TCNQ的CT-络合物。
It can also be prepared by reaction of bromochloromethane with sodium thiocyanate to obtain chloromethyl thiocyanate, and then it reacts with 2-mercapto-benzothiazole.
另一种2-巯基苯并噻唑法是先将溴烷与硫氰化钠反应生成硫氰
,然后硫氰
与2-巯基苯并噻唑反应得到苯噻氰。
P-hydroxyacetophenone combined with methyl chloroacetate can get a new acetonate.This new acetonate combined with another compound-ethanolamine and get a new schiff base.
由对羟基苯乙酮与乙
反应,得到一种酮,这种酮再与乙醇胺反应得到一种新的希夫碱。
Phragmoplast of coil coating has been prepared by free radical polymerization and by using acrylic acid,methyl methacrylate,butyl acrylate as the raw materials.
以丙烯、丙烯
丁
和
基丙烯
为单体,采用自由基聚合法制备了聚丙烯
卷材涂料前驱成膜物,获得了适宜的制备工艺条件。
The results showed that in this process of alkaline hydrolysis the demethylation of poly(methyl glutamate)was faster, but debenzylation of poly(benzyl glutamate) was hardly processed.
谷氨均聚物碱解较快,而谷氨
苄
均聚物与稀碱在室温下反应很小。
Tussore oil was extracted by chemical .The fatty acid (FA) in tussore oil was saponificated and modified to methyl esters by different means .
研究了脂肪油的衍生化、三氟化硼、硫3种不同方法对脂肪油的皂化、
化效果,并用GC/MS法对柞蚕中脂肪
的成分进行了鉴定和分析。
Etodolac was synthesized with 7-ethyltryptophol and methyl 3-oxopentanoate as the starting materials.Highly pure etodolac was obtained by purifying the crude product with a mixing solvent.
以7-乙基色醇和3-氧代为起始原料,以
醇为溶剂,合成了依托度
.采用混合溶剂对粗品进行精制,得到了高纯度的依托度
.
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