The synthesis of feruloylated monoacylglycerol catalyzed by P-Toluene sulfonic acid was investigated.
研究对磺酸催化合成阿魏酸单甘油酯工艺。
The synthesis of feruloylated monoacylglycerol catalyzed by P-Toluene sulfonic acid was investigated.
研究对磺酸催化合成阿魏酸单甘油酯工艺。
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改进工艺。
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、、二及混合作业工人健康状况调结果。
Used as a component of solvents in the process of the azeotropism, and could partly replace toluene, xylene and methyl isobutyl ketone (MIBK).
由于它适度挥发性和良好皮肤渗透作用,可以用作药物吸收促进组分;
Citral was synthesized by catalytical rearrangement of dehydrolinalool in toluene solution with the present of molybdenyl acetylacetonate, benzoic acid and dimethyl sulfoxide (DMSO).
摘要采用脱氢芳樟醇为原料,在乙酰丙酮酸钼、酸、二亚(DMSO)溶液中催化重排合成柠檬醛,考察了柠檬醛在不同体系中热敏性。
No osmyl and no taste.Soluble in Benzene,Acetone,C2H4Cl2,CS2,toluene,party soluble in alcohol,diethyl ether,insoluble in water,gasoline.
溶于丙酮、、、二硫化碳、二氯乙烷,微溶于乙醇和乙醚,不易溶于水和汽油。
It was found that when the oxidation reaction was performed in toluene solvent, benzyl alcohol was oxidized to benzaldehyde without any overoxidation to benzoic acid;
发现在溶剂中进行氧化反应时,醇被氧化成醛而不会被深度氧化为酸;
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品种之一,其工业生产主要采用胺光化法。
Ethyl cellulose was synthesized successfully in one step based on reaction of cellulose with excess chloroethane and sodium hydroxide in toluene as diluent.
采用纤维素与过量氯乙烷及氢氧化钠反应,以为稀释剂,用一步法成功地合成了乙纤维素。
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乙酮,并确定,乙酸酐和三氯化铝最佳摩尔比为4: 1: 2,收率为86.2%。
Two series of thermotropic liquid crystalline polyureas were synthesized by the copolymerization of benzidine (or o-tolidine),1,6-hexane diamine and 2,4-toluene diisocyanate.
为合成新型热致液晶聚脲,以含液晶元联二胺(或联邻胺)、1,6-己二胺、2,4-二异氰酸酯为原料进行合成。
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酰化反应影响。
Four kinds of methods to synthesize o-Dichlorobenzaldehyde were introduced. the advantages of hydrolysis methods to reduce p-toluene sulfonyl chloride were discussed.
主要介绍了四种二氯醛合成工艺路线,并比较利弊,阐述了对磺酰氯氯化水解法优越性。
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邻对异构体比例、二硝化程度及2,6-二硝与2,4-二硝生成比例影响。
The system condition of chromatography separating 2,6—2,4—2,3— and 3,4—toluenediamine isomer and the test methods verifying purity for toluene-diamine reference materilas were studied by HPLC.
应用高效液相色谱法研究分离2,6—、2,4—、2,3—和3,4—二氨异构体色谱系统条件和检定二氨参考物质纯度试验方法
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