GB767754A - "halogenated naphthoquinone-imines and process for their manufacture" - Google Patents
"halogenated naphthoquinone-imines and process for their manufacture"Info
- Publication number
- GB767754A GB767754A GB22833/54A GB2283354A GB767754A GB 767754 A GB767754 A GB 767754A GB 22833/54 A GB22833/54 A GB 22833/54A GB 2283354 A GB2283354 A GB 2283354A GB 767754 A GB767754 A GB 767754A
- Authority
- GB
- United Kingdom
- Prior art keywords
- naphthoquinone
- sulphur
- sulphuric acid
- dihalogen
- nitro
- 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
- C09B13/00—Oxyketone dyes
- C09B13/02—Oxyketone dyes of the naphthalene series, e.g. naphthazarin
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
Halogenated naphthoquinoneimines are made by treating a 2, 3 - dihalogen - 5 - nitro - 14 - naphthoquinone with concentrated sulphuric acid and reducing the 2, 3-dihalogen - 5 - nitroso - 8 - hydroxy - 1, 4 - naphthoquinone thereby obtained with sulphur or sulphur-supplying compounds in a strong acid medium to produce a 6, 7-dihalogen - 5. 8 - dihydroxy - 1, 4 - naphthoquinone - 1 - imine. The products dye cellulose ester, polyester, and polyamide fibres. In examples, (1) 2, 3 - dichloro - 5 - nitro - 1, 4 - naphthoquinone and the corresponding 2, 3 - dibromo body are each dissolved in sulphuric acid (100 per cent), followed by the addition of sulphur and fuming sulphuric acid; (2) 2, 3, 6 - trichloro 1 5 - nitro - 1, 4 - naphthoquinone is slurried in 100 per cent sulphuric acid, followed by the addition of sulphur. A dyeing example illustrates the dyeing of polyester fibres with the product of (1). Specification 629,706 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH767754X | 1953-08-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB767754A true GB767754A (en) | 1957-02-06 |
Family
ID=4535164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22833/54A Expired GB767754A (en) | 1953-08-07 | 1954-08-05 | "halogenated naphthoquinone-imines and process for their manufacture" |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB767754A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2472775C1 (en) * | 2011-06-07 | 2013-01-20 | Государственное образовательное учреждение высшего профессионального образования Дагестанский государственный университет | Method of producing cell respiration stimulating substances |
-
1954
- 1954-08-05 GB GB22833/54A patent/GB767754A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2472775C1 (en) * | 2011-06-07 | 2013-01-20 | Государственное образовательное учреждение высшего профессионального образования Дагестанский государственный университет | Method of producing cell respiration stimulating substances |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB767754A (en) | "halogenated naphthoquinone-imines and process for their manufacture" | |
GB1334495A (en) | Oxidation of vat and sulphur dyes | |
GB443632A (en) | Improvements in the manufacture and production of valuable water-soluble condensation products suitable as assistants in the textile and related industries | |
GB979565A (en) | New disperse anthraquinone dyes | |
GB1094374A (en) | Diazotype materials | |
GB264261A (en) | Improvements in the production of carbo-hydrate compounds | |
GB390515A (en) | Process for the treatment of vegetable fibres and artificial threads | |
GB397838A (en) | Improved production of improvement effects on silk | |
GB868743A (en) | Dyestuffs of the anthraquinone series and their production | |
GB793515A (en) | Improvements in or relating to dyeing | |
GB678522A (en) | A new vat dyestuff of the acedianthrone series | |
GB448909A (en) | The manufacture of a yellow substantive dyestuff for cotton | |
GB672905A (en) | Vat dyestuffs of the acedianthrone series | |
GB621888A (en) | Method of bleaching alginic acid | |
GB848782A (en) | Water-soluble dyestuffs of the azaporphin series and their production | |
GB1017920A (en) | Process for dyeing textile materials with sulphur dyestuffs and reactive dyestuffs | |
GB960643A (en) | Process for the manufacture of phthalocyanine derivatives | |
ES273185A1 (en) | Process for the manufacture of halogenated hydroxy-aminoanthraquinones | |
GB227183A (en) | Improvements in or relating to the dyeing, printing or stencilling of cellulose acetate | |
GB627078A (en) | Manufacture of vat dyestuffs | |
GB324358A (en) | Improvements in the treatment of vegetable and silk material with chrome mordants | |
GB231189A (en) | ||
GB371420A (en) | Improvements in and relating to the production of vat dyestuffs | |
GB671382A (en) | Composition and process for textile printing | |
ES196099A1 (en) | A PROCEDURE FOR OBTAINING A PRODUCT FOR HAIR COLORING AND COLORING |