By the improved method, proglumide was synthesized in acetic anhydride with toluene as the dehydrating agent.

本文报道合成抗溃疡药丙谷胺的改进工艺。

Toluene diisocyanate (TDI) is one of the most useful kinds of isocyanateth that is produced by the method of phosgenation of amine.

二异氰酸酯(TDI)是异氰酸酯化合物中应用最广泛的品种之一,其工业生产主要采用胺光化法。

A survey of the health condition of 308 cases of workers exposed to benzene, toluene, xylol and mixed derivatives of benzene is presented.

本文报告了308例、、二及混合作业工人的康状况调查结果。

Citral was synthesized by catalytical rearrangement of dehydrolinalool in toluene solution with the present of molybdenyl acetylacetonate, benzoic acid and dimethyl sulfoxide (DMSO).

摘要采用脱醇为原料，在乙酰丙酮酸钼、酸、二基亚砜(DMSO)的溶液中催化重排合成柠檬醛，考察了柠檬醛在不同体系中的热敏性。

Ethyl cellulose was synthesized successfully in one step based on reaction of cellulose with excess chloroethane and sodium hydroxide in toluene as diluent.

采用纤维素与过量的氯乙烷及氧化钠反应,以为稀释剂,用一步法成功地合成了乙基纤维素。

The effects of the catalyst dosage and the preparation conditions of HZ-1 zeolite,for example, number of exchange times on the benzoylation of toluene were studied.

并考察了HZ-1沸石交换次数等制备条件和催化剂用量对的酰化反应的影响。

The isomer ratio of o-MNT to p-MNT,the degree of dinitration and the ratio of 2,6-DNT to 2,4-DNT have been investigated in the mononitration product of toluene by mixed acid.

通过改变反应条件,研究了硝硫混酸硝化剂对一段硝化产物的邻对异构体比例、二硝化程度及2,6-二硝基与2,4-二硝基生成比例的影响。

Firstly, p-methylacetophenone was obtained in the presence of alchlor as the catalyst, and the optimum condition was 4:1:2 in molar ratio for toluene, acetic anhydride and alchlor with yield of 86.2%.

首先，以和乙酸酐为原料，在催化剂三氯化铝存在下合成对基乙酮，并确定，乙酸酐和三氯化铝的最佳摩尔比为4: 1: 2，收率为86.2%。