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酸,
茴香酸
。
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酸,
茴香酸
。
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

艺制备香料邻氨基苯
酸
。
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
了对位均苯二
二酰
。
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
酸二
(DMT)单体和乙二醇。
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
脑、桉叶醇以及柳酸
(冬青油)。
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、
代
类、异氰酸
类、酰
类、碳酸
类化
物。
It is ascertained that the PABA may be N-dimethylated using dimethyl sulfate as a methylation agent.
确定以硫酸二
为N——
基化剂,对对氨基苯
酸PABA进行N——二
基化.
Objective: To study the simple synthetic methods of chloromethyl pivalate.
目的探讨
特戊酸

的简便
艺方法。
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
方法,重点介绍了苯酚法,乙酰水杨酸法,水杨酸
法,邻羟基苯乙酮法。
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
二元酸二
和二元醇。
(-)-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
酸
不对称
(R)-(-)-扁桃酸
。
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.

了带双羟烷基及双
酸
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
物。
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,乙酸乙
,乙酸
,缩醛等一系列有害物质。
The catalysts and reaction conditions have been studied for esterinterenange between propenyl carbonate and methanol to produce dimethyl carbonate (DMC).
研究了碳酸丙烯
和
醇经
交换制备碳酸二
的催化剂及反应
艺条件。
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
乙酸
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。
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
硫氰酸

,然后硫氰酸

与2-巯基苯并噻唑反应得到苯噻氰。
Phragmoplast of coil coating has been prepared by free radical polymerization and by using acrylic acid,methyl methacrylate,butyl acrylate as the raw materials.
以丙烯酸、丙烯酸丁
和
基丙烯酸
为单体,采用自由基聚
法制备了聚丙烯酸卷材涂料前驱
膜物,获得了适宜的制备
艺条件。
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、硫酸3种不同方法对脂肪油的皂化、
化效果,并用GC/MS法对柞蚕中脂肪酸的
分进行了鉴定和分析。
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.
谷氨酸
均聚物碱解较快,而谷氨酸苄
均聚物与稀碱在室温下反应很小。
In this paper,using CCl4 as solventia,MMA reated with chloroperene rubber.A new graft chloroprene rubber adhesive which are low toxicity, high strength, stable store was synthetized.
本文采用四
化碳做为溶剂,
基丙烯酸
与
丁橡胶在一定压力下进行自由基接枝共聚
。制得了粘接强度高、毒性低、储存稳定性好的新型
丁胶粘剂。
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