Amino-between N-acetyl aniline

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Amino-between N-acetyl aniline

Post  jiangxiao on Tue Aug 23, 2011 2:11 am

Acetyl aniline is a common chemicals, and appearance of the white luster flake crystallization or white crystal powder, in the water will recrystallization exhalation into flake, positively crystal odourless or slightly aniline and acetic acid smell.
Acetyl aniline is sulfa medications can be used as the raw material, analgesic, antifebrile agent and antiseptic, etc. At the same time can also be used to make dye intermediates to resolve acetyl aniline, to resolve of aniline and benzene 2 amine. Acetyl aniline also used for the generation of ethyl amide sulfur. In industry can make rubber sulfide accelerator, fiber grease coating stabilizer, hydrogen peroxide, stabilizer, as well as for synthetic camphor, etc.
Acetyl aniline derivatives between-amino-N-acetyl aniline, everybody else between called amino acetyl aniline, N-acetyl groups-1, benzene 2 amine, N-(3-amino phenyl) ethyl amide, between the acetyl amino aniline, acetyl benzene 2 amine, between between amino-N-acetyl aniline, N-acetyl groups benzene 2 amine between etc. Its melting point for 84-88 ℃. The appearance of the colorless needle crystal or piece of crystal. Soluble in cold water; Acetone; Soluble in ethanol, ethyl ether, slightly soluble in chloroform and benzene. 100 ℃, decomposition. By the methods of production between benzene 2 amine acylation and get. The reaction pot, add water and benzene 2 amine, make between dissolved. Add 30% hydrochloric acid, stirring, half an hour, and then join the acid, reaction temperature control in 40 ℃, heat preservation mixing 1 h, add salt, filtering. Salting-out And between the have amino acetyl aniline. Acylation operation may also be used as raw materials. B anhydride Raw material consumption quota benzene 2 amine between 1021 kg, t; B anhydride 1013 kg, t; Hydrochloric acid 475 kg, t use: dye intermediates. Mainly used in preparation of active yellow K-an RN and dispersal dyes.
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