GB546595A - Manufacture of disazo dyestuffs - Google Patents
Manufacture of disazo dyestuffsInfo
- Publication number
- GB546595A GB546595A GB17506/40A GB1750640A GB546595A GB 546595 A GB546595 A GB 546595A GB 17506/40 A GB17506/40 A GB 17506/40A GB 1750640 A GB1750640 A GB 1750640A GB 546595 A GB546595 A GB 546595A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphonic acid
- aminodiphenylsulphone
- methyl
- aminonaphthalene
- acid
- 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
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
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/02—Disazo dyes
- C09B31/04—Disazo dyes from a coupling component "C" containing a directive amino group
- C09B31/053—Amino naphthalenes
- C09B31/057—Amino naphthalenes containing acid groups, e.g. —CO2H, —SO3H, —PO3H2, —OSO3H, —OPO2H2; Salts thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
546,595. Dyes. GEIGY AKT.-GES., J. R. Dec. 10, 1940, No. 17506. Convention date, Dec. 11, 1939. [Class 2 (iii)] Secondary disazo dyes, dyeing animal fibres blue to blue-black shades, specially fast to fulling, sea water and light, are obtained by diazotizing an aminodiaryl sulphone, coupling with a primary amine of the naphthalene series coupling in p-position to the primary amino group, further diazotizing and coupling with a 1-N-alkyl- or N-aryl-aminonaphthalene- 8-sulphonic acid, one of the first two components containing a sulphonic acid group. Specified first components are 3-aminodiphenylsulphone and its 4- or 6-methyl-, methoxy- or chloro-derivatives and their 3<SP>1</SP>- sulphonic acids, 4<SP>1</SP>-methyl-2-aminodiphenylsulphone and its 4-sulphonic acid and 3-amino- 21 - 41 - 5<SP>1</SP>-trichlorodiphenylsulphone. Specified second components are 1-aminonaphthalene and its 6- and 7-sulphonic acids. Specified third components are the N-ethyl, N-phenyl and N-p-tolyl derivatives of 1-aminonaphthalene-8-sulphonic acid. Examples relate to the preparation of the dyes, (1) 4- or 6-methyl- 3-aminodiphenylsulphone-3<SP>1</SP>-sulphonic acid# 1-aminonaphthalene# 1-N-phenyl- or N-p-tolylaminonaphthalene-8-sulphonic acid; (2) the 4-methyl- or methoxy- or 6-methyl-derivative of 3-aminodiphenylsulphone or 3-amino-2<SP>1</SP>:4<SP>1</SP>:5<SP>1</SP>- trichlorodiphenylsulphone# Cleve's acid# 1-N- p-tolylaminonaphthalene-8-sulphonic acid, (3) 4- or 6-chloro-3-aminodiphenylsulphone-3<SP>1</SP>-sulphonic acid# 1 - aminonaphthalene# 1 - N - phenylaminonaphthalene - 8 - sulphonic acid ; (4) 4<SP>1</SP> - methyl - 2 - aminodiphenylsulphone - 4 - sulphonic acid# 1 - aminonaphthalene# 1 - N - p - tolylaminonaphthalene - 8 - sulphonic acid. Specifications 7337/92 and 13626/95, [both in Class 2], are referred to. Aminodiphenylsulphonesulphonic acids are obtainable by reducing the nitro group in the product of sulphonation of the product of Friedel-Kraft reaction of the corresponding nitrobenzenesulphochlorides with hydrocarbons of the benzene series. Aminodiphenylsulphones are obtainable by reducing the nitro group in the said Friedel- Kraft reaction products. 6 - Methoxy - 3 - aminodiphenylsulphone is obtainable by treating with sodium methylate in methyl alcohol the product of Friedel-Kraft reaction of 3-nitro-6-chlorobenzenesulphonic acid chloride with benzene. 3 - Amino - 2<SP>1</SP> : 4<SP>1</SP> : 5<SP>1</SP> - trichlorodiphenylsulphone is obtainable by reduction of the mononitration product from the FriedÚl-Kraft reaction of 2 : 4 : 5-trichlorobenzenesulphonic acid chloride with benzene.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH546595X | 1939-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB546595A true GB546595A (en) | 1942-07-21 |
Family
ID=4519384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17506/40A Expired GB546595A (en) | 1939-12-11 | 1940-12-10 | Manufacture of disazo dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB546595A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2452263A (en) * | 1946-01-31 | 1948-10-26 | Ciba Ltd | Disazo dyestuffs |
-
1940
- 1940-12-10 GB GB17506/40A patent/GB546595A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2452263A (en) * | 1946-01-31 | 1948-10-26 | Ciba Ltd | Disazo dyestuffs |
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