The preparation of anisaldehyde by ozonolysis reaction from anethole was studied.

以茴香脑为原料,乙酸和环己烷的混合物做溶剂,臭氧化法制备茴香醛。

The synthetic method of trichloromethyl-benzyl-alcohol and trichlorometyl-benzyl-alcohol-acetate were reviewed, and the application of rosone were introduced.

讨论三苄醇和三苄醇乙酸酯的合成方法,介绍结晶玫瑰的应用。

The hexadecanol bischloroacetate was synthesized fastly with the technique of microwave irradiation with the anhydrous cupric sulfate as catalyst.

研究在无水硫酸铜的催化下,利用微波辐射技术快速合成乙酸十六酯的方法及影响反应收率的因素。

The stability,decomposition and generation of the acetic acid halid and other organic halide in the treated water is briefly discussed.

简述生成的卤化乙酸和其它有卤化物的稳定性及分解、生成等问题.

The synthesis of epalrestat,an aldose reductase inhibitor, was improved. The yield of its intermediate 3-carboxymethyl rhodanine was raised to 76.4%.

对醛搪还原酶抑制剂依帕司他的合成工艺作改，使中间体绕丹宁乙酸的收率提高到76．4％。

A new method of gas chromatographic analyses in the production of chloroacetic acid for process control using diazomethane as esterification agent is studied.

以重氮烷为酯化剂，用气相色谱法对乙酸生产的中控分析研究。

The present situation of terpinyl acetate synthesis has been reviewed.One-step and two-steps process for the synthesis of terpinyl acetate and relevant reaction mechanism are discussed.

综述乙酸松油酯的合成研究现状,讨论一步法和两步法合成工艺及相应的反应理。

When the complex of anhydrous zinc acetate with 1,5-naphthalene diamine was formed, the anhydrous zinc acetate changed from a bidentate ligand to a unidentate ligand.

在无水乙酸锌与1,5-萘二胺形成配位络合物的过程中，无水乙酸锌的结构从双齿型转变成单齿型。

Keto-enol tautomerizing of ethyl acetoacetate was studied by UV.It was conformed that the content of enol ethyl acetoacetate decreased with the increasing polarity of solvents.

本文以紫外光谱为手段研究乙酰乙酸乙酯的酮-烯醇式互变异构现象;所得结果证实其烯醇式含量随溶剂极性的增加而减少。

Using sodium hydrosulphide or sodium thiosulfate as materials,the production cost of TGA is low.While,a high content of TGA can be obtained with thiourea as reactant.

本文对巯乙酸的合成工艺比较研究,认为硫氢化钠法和硫代硫酸钠法生产成本低,适宜于选矿用巯乙酸的生产,而硫脲法可得到较高浓度的巯乙酸。

The content of free acetic acid in cigarette smoke condensates was determined by GC-MS with isopropyl alcohol as the solvent and nonanol as the internal standard.

以异丙醇为溶剂,壬醇为内标,采用气相色谱-质谱法分析卷烟烟气总粒相物中的游离乙酸,乙酸测定结果的相对标准偏差小于1%,平均回收率为99。

Results indicate that both of barium thioglycolate and barium-natrium thioglycolate can increase the thermal stability of PVC system, and the thermal stability of barium thioglycolate is better.

巯乙酸钡和巯乙酸钡-钠都能提高PVC的热稳定性,但巯乙酸钡的稳定性要好于巯乙酸钡-钠。

Methyl thioacetate was prepared by using acetyl chloride and methyl mercaptan as starting raw material in this paper.The yield of product is 69.3%.Itcan be used in seasoning flavor.

对可用于各种调味香精的食用香料硫代乙酸酯的合成初步研究，产率达到693％，对所合成的产品做红外光谱分析和质子核磁共振分析，确定其化学结构。