发明授权
US5391719A Preparation of aminoformazans 失效
氨基甲苯胺的制备

Preparation of aminoformazans
摘要:
A process for preparing metal aminoformazans by alkaline hydrolysis of the corresponding acylated amino derivates in aqueous medium, is described, the hydrolysis being carried out at from 120.degree. to 170.degree. C. and from 3 to 5 bar in the presence of from 1.5 to 3 mol of an alkali metal hyroxide, based on 1 mol of acylated aminoformazan.
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