1.The synthetic method of trichloromethyl-benzyl-alcohol and trichlorometyl-benzyl-alcohol-acetate were reviewed, and the application of rosone were introduced.
讨论了三甲基苄醇和三甲基苄醇乙酸酯合成法,介绍了结晶玫瑰应用。
2.The preparation of anisaldehyde by ozonolysis reaction from anethole was studied.
以茴香脑为原料,乙酸和环己烷混合物做溶剂,臭氧化法制备茴香醛。
3.The synthesis of epalrestat,an aldose reductase inhibitor, was improved. The yield of its intermediate 3-carboxymethyl rhodanine was raised to 76.4%.
醛搪还原酶抑制剂依帕合成工艺作了改进,使中间体绕丹宁乙酸收率提高到76.4%。
4.The hexadecanol bischloroacetate was synthesized fastly with the technique of microwave irradiation with the anhydrous cupric sulfate as catalyst.
研究了在无水硫酸铜催化下,利用微波辐射技术快速合成乙酸十六酯法及影响反应收率因素。
5.The stability,decomposition and generation of the acetic acid halid and other organic halide in the treated water is briefly discussed.
简述了生成卤化乙酸和其它有机卤化物稳定性及分解、生成等问题.
6.A new method of gas chromatographic analyses in the production of chloroacetic acid for process control using diazomethane as esterification agent is studied.
以重氮甲烷为酯化剂,用气相色谱法乙酸生产中控分析进行了研究。
7.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.
8.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过程中,无水乙酸锌结构从双齿型转变成单齿型。
9.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.
10.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.
综述了乙酸松油酯合成研究现状,讨论了一步法和两步法合成工艺及相应反应机理。
11.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.
12.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.
巯基乙酸钡和巯基乙酸钡-钠都能提高PVC热稳定性,但巯基乙酸钡稳定性要好于巯基乙酸钡-钠。
13.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.