Triethanolamine → Aniline

HRID 325810Notes

Reaction equation

HRID 325810 reaction equation
N([CH2:8][CH2:9][OH:10])(CCO)CCO.[N+:11]([C:14]1[CH:19]=[CH:18][C:17]([OH:20])=[C:16](N)[CH:15]=1)([O-])=O>O>[NH2:11][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1.[CH:17](=[O:20])[C:16]1[C:9](=[CH:8][CH:19]=[CH:14][CH:15]=1)[OH:10]

Participants

5

Reactant 2

HCID 7618TriethanolamineHCID 36133892-Amino-4-Nitrophenol

Product 2

HCID 6115AnilineHCID 6998Salicylaldehyde

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

The 1:1-chrome complex containing 43.4 parts of the dye formed from diazotised 4-nitro-2-aminophenol-6-sulfonic acid and 1-(4'-methylphenyl)-3-methyl-5-pyrazolone as well as 5.2 parts of chromium is introduced into 250 parts of water and 250 parts of triethanolamine, and 15.4 parts of 4-nitro-2-aminophenol and 22.6 parts of the monoazo dye formed from diazotised aniline and salicylaldehyde are added. The reaction mixture is held, with stirring, at pH 7.5-8 and at 80° C. until the formation of the 1:2-complex dye is complete. The reaction mixture is then neutralised with hydrochloric acid; it is subsequently filtered, and the dye is rinsed with 750 parts of 25% sodium chloride solution and dried. It dyes wool, polyamide and leather in an orange shade having good fastness properties.

Sources & evidence

ORD record
ord-e5c6ca865fae49598a92d4532a7aa0ee
Source dataset
uspto-grants-1984_04
Patent number
US04443370

Reaction notes

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