中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-(4-氨基苯甲酰基)苯甲酸 | 2-(4-aminobenzoyl)-benzoic acid | 181660-06-0 | C14H11NO3 | 241.246 |
2-(4-氯苯甲酰)苯甲酸 | 2-(4-chlorobenzoyl)benzoic acid | 85-56-3 | C14H9ClO3 | 260.677 |
Acid wool dyes are obtained by converting the products obtained by condensing 1-amino-4-halogenanthraquinone-2 sulphonic acids with aromatic amino-mono- or poly-carboxylic acids into their carboxylic acid esters, or by condensing the above aminoanthraquinone derivatives with the esters of aromatic amino-mono- or poly-carboxylic acids, or by condensing one of these esters with a 1-amino-2 : 4-dihalogenanthraquinone, and converting the product to the 2-sulphonic acid by means of alkali sulphite. According to examples, (1) the products obtained by condensing 1-aminoanthraquinone-4-bromo-2-sodium sulphonate with m-aminobenzoic acid, 31 aminobenzophenone-41-2-dicarboxylic acid, p-aminocinnamic acid, p-amino-diphenylamine-2-carboxylic acid, 31 - amino - 41 - methyldiphenylmethane-2-carboxylic acid, 3-amino-5-methyl-6-hydroxy benzoic acid, and aminoterephthalic acid, and the products of example 1 of Specification 355,716, and example 2 of Specification 355,743, are converted into their ethyl or methyl esters in the customary manner; (2) 1 - amino - 4 - bromoanthraquine 2-sodium sulphonate is condensed with the ethyl esters of o-aminobenzoic acid, and m-aminobenzoic acid; (3) 1-amino-2 : 4 dibromoanthraquinone is condensed with m-amino-benzoic acid followed by sulphonation and esterification and with the ethyl ester of the above acid and the dimethyl ester of aminoterephthalic acid, followed by sulphonation with alkali sulphite. Specifications 10378/14 and 7861/15, [both in Class 2 (iii), Dyes &c.], also are referred to.