GB355716A - Manufacture of acid dyestuffs - Google Patents

Manufacture of acid dyestuffs

Info

Publication number
GB355716A
GB355716A GB1631130A GB1631130A GB355716A GB 355716 A GB355716 A GB 355716A GB 1631130 A GB1631130 A GB 1631130A GB 1631130 A GB1631130 A GB 1631130A GB 355716 A GB355716 A GB 355716A
Authority
GB
United Kingdom
Prior art keywords
acid
amino
product
condensed
dyes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1631130A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB1631130A priority Critical patent/GB355716A/en
Publication of GB355716A publication Critical patent/GB355716A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus
    • C09B1/26—Dyes with amino groups substituted by hydrocarbon radicals
    • C09B1/32—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups
    • C09B1/34—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated
    • C09B1/343—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated only sulfonated in the anthracene nucleus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Acid wool dyes are obtained by condensing a 1-amino-4-halogenanthraquinone 2-sulphonic acid or a salt thereof with a Bz1-amino-diphenylmethane-2-carboxylic acid for a salt thereof, or by condensing a 1-amino-2 : 4-dihalogen anthraquinone with the above diphenyl methane carboxylic acid followed by treatment with alkali sulphite for the introduction of a 2-sulphonic acid group. The products are blue dyes for wool and silk, and may further be converted into new products by treatment with concentrated sulphuric acid with probable ring-closure. According to examples (1) 21-aminodiphenyl methane-2-carboxylic acid (obtainable by converting the lactam of o-aminobenzoyl-o-benzoic acid, see Specification 305,593, [Class 2 (iii), Dyes &c.], into the acid and reducing the latter) is condensed with sodium 1 - amino - 4 - bromo - anthraquinone-2-sulphonate; (2) 1-amino-2 : 4-dibromo-anthraquinone is condensed with 21-aminodiphenylmethane-2-carboxylic acid, followed by treatment with potassium sulphite to introduce the 2-sulphonic group; (3) the product of example (1) is treated with concentrated sulphuric acid to give a brown product; (4) 41-amino-diphenylmethane-2-carboxylic acid (obtainable by treating 4-chlorbenzoyl-o-benzoic acid with ammonia according to German Specification 234,917) is condensed with sodium 1 - amino - 4 - bromo - anthraquinone - 2 - sulphonate; (5) the product of the last example is treated with concentrated sulphuric acid or chlorosulphonic acid to give black products in both cases; (6) 31-amino-diphenylmethane-41 : 2-dicarboxylic acid (obtainable by reducing 31-aminobenzophenone-41 : 2-dicarboxylic acid of German Specification 248,838), is condensed with sodium 1-aminoanthraquinone - 4 - bromo - 2 - sulphonate; (7) the latter product is treated with concentrated sulphuric acid to give a green product; (8) 21-amino-41-chlorodiphenylmethane-2-carboxylic acid (obtainable by decomposing the lactam of 2-amino-4-chlorobenzoyl-o-benzoic acid of Specification 305,593, [Class 2 (iii), Dyes &c.], and reducing) is condensed with sodium-1-amino-4-bromoanthraquinone-2-sulphonate; (9) the latter product is treated with concentrated sulphuric acid to give a brown product. Specifications 10378/14 and 7861/15, [both in Class 2 (iii), Dyes &c.], also are referred to.
GB1631130A 1930-05-27 1930-05-27 Manufacture of acid dyestuffs Expired GB355716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1631130A GB355716A (en) 1930-05-27 1930-05-27 Manufacture of acid dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1631130A GB355716A (en) 1930-05-27 1930-05-27 Manufacture of acid dyestuffs

Publications (1)

Publication Number Publication Date
GB355716A true GB355716A (en) 1931-08-27

Family

ID=10075009

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1631130A Expired GB355716A (en) 1930-05-27 1930-05-27 Manufacture of acid dyestuffs

Country Status (1)

Country Link
GB (1) GB355716A (en)

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