METHOD OF PREPARING SUBSTITUTED AROMATIC AMINES Russian patent published in 2000 - IPC

Abstract RU 2144914 C1

FIELD: chemical industry. SUBSTANCE: substituted aromatic azocompound or azoxy or hydazo derivative thereof is contacted with alcohol selected from group consisting of aliphatic alcohols, cycloatiphatic alcohols, arylalkyl alcohols and mixtures thereof in the presence of suitable base at temperatures from 70 C to 200 C where substituted aromatic azocompound is selected from group consisting of compound represented by formulas: (R-NH)-R₁(X)-N=N-R₂(Y) (I), (R-NH)-R₁(X)-N=N-R₂(Y)-(NH-R), X-R₁-N=N-R₂(Y)-(NH-R) (III) or mixtures thereof wherein R-NH,R_1`,R₂ X and Y are as defined in claim 1. EFFECT: simplified process and greater economic efficiency thereof. 13 cl, 11 ex, 2 tbl

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RU 2 144 914 C1

Authors

Brajan Kaj-Ming Cheng

Majkl Kit Stern

Dates

2000-01-27—Published

1994-10-12—Filed