ES402826A1 - Monoazo dyestuffs - Google Patents

Monoazo dyestuffs

Info

Publication number
ES402826A1
ES402826A1 ES402826A ES402826A ES402826A1 ES 402826 A1 ES402826 A1 ES 402826A1 ES 402826 A ES402826 A ES 402826A ES 402826 A ES402826 A ES 402826A ES 402826 A1 ES402826 A1 ES 402826A1
Authority
ES
Spain
Prior art keywords
formula
group
alkyl
hydrogen
see formula
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
ES402826A
Other languages
Spanish (es)
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of ES402826A1 publication Critical patent/ES402826A1/en
Expired legal-status Critical Current

Links

Landscapes

  • Coloring (AREA)
  • Cosmetics (AREA)

Abstract

Procedure for preparing monoazo dyes, of general formula: ** (See formula) ** where the hydroxyl group is in position 2 or 4 with respect to the azo group and where R1 represents a hydrogen or halogen atom or an alkyl, cycloalkyl, aryl or alkoxy group and R2 represents a hydrogen atom or an alkyl group; characterized in that it comprises diazotizing 2'-nitro-4-aminodi-phenylamine-4'-sulfonic acid and coupling the resulting diazo compound with a phenol of the formula: ** (See formula) ** where R1 and R2 are defined as above. (Machine-translation by Google Translate, not legally binding)
ES402826A 1971-05-17 1972-05-17 Monoazo dyestuffs Expired ES402826A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1527271A GB1387987A (en) 1971-05-17 1971-05-17 Monoazo dyestuffs

Publications (1)

Publication Number Publication Date
ES402826A1 true ES402826A1 (en) 1975-04-16

Family

ID=10056111

Family Applications (1)

Application Number Title Priority Date Filing Date
ES402826A Expired ES402826A1 (en) 1971-05-17 1972-05-17 Monoazo dyestuffs

Country Status (9)

Country Link
JP (2) JPS556756B1 (en)
BE (1) BE783629A (en)
CH (1) CH586261A5 (en)
DE (2) DE2224116C3 (en)
ES (1) ES402826A1 (en)
FR (1) FR2137974B1 (en)
GB (1) GB1387987A (en)
IT (1) IT961182B (en)
NL (1) NL168541C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075200A (en) * 1971-05-17 1978-02-21 Imperial Chemical Industries Limited 4(2'-Nitro-4'-sulfoanilino) phenyl azo hydroxyphenyl dyes
DE2422465C2 (en) * 1974-05-09 1982-12-02 Bayer Ag, 5090 Leverkusen Azo dyes
DE3520551A1 (en) * 1985-06-07 1986-12-11 Pfister Gmbh, 8900 Augsburg DEVICE FOR CONTINUOUS, GRAVIMETRIC DOSING AND PNEUMATIC CONVEYING OF SHOEABLE GOODS
GB2236542B (en) * 1989-10-06 1992-04-15 Sandoz Ltd Dye mixtures and their use in trichromatic dyeing processes

Also Published As

Publication number Publication date
JPS5548248A (en) 1980-04-05
IT961182B (en) 1973-12-10
FR2137974A1 (en) 1972-12-29
DE2224116C3 (en) 1979-12-20
DE2265443C2 (en) 1979-10-11
GB1387987A (en) 1975-03-19
DE2224116A1 (en) 1972-11-30
BE783629A (en) 1972-11-17
NL168541C (en) 1982-04-16
DE2224116B2 (en) 1979-05-03
DE2265443B1 (en) 1979-02-15
FR2137974B1 (en) 1980-03-14
CH586261A5 (en) 1977-03-31
NL168541B (en) 1981-11-16
JPS556756B1 (en) 1980-02-19
NL7206574A (en) 1972-11-21

Similar Documents

Publication Publication Date Title
ES400321A1 (en) Disperse monoazo dyestuffs
GB1262517A (en) Monoazo dyes and process for the production thereof
ES402826A1 (en) Monoazo dyestuffs
ES408644A1 (en) Watersoluble trisazo dyestuffs
ES371853A1 (en) Procedure for the preparation of soluble azoic dyes in water. (Machine-translation by Google Translate, not legally binding)
ES448688A1 (en) Disperse monoazo dyestuffs
ES296668A1 (en) Procedure for the preparation of insoluble monoazoic colorants in water (Machine-translation by Google Translate, not legally binding)
ES392895A1 (en) Water-soluble monoazo dyestuffs and process for their manufacture
ES441774A1 (en) Disazo dyes
ES414836A2 (en) Water-insoluble monoazo dyestuffs
ES425933A1 (en) Monoazo dyes
ES424894A1 (en) Monoazo dyes containing a sulphato-ethyl group
ES405780A1 (en) Disazo dyestuffs
ES303942A1 (en) Procedure for the preparation of insoluble disazous colors in water. (Machine-translation by Google Translate, not legally binding)
ES408277A1 (en) Water-insoluble monoazo dyestuffs
ES468772A1 (en) Monoazo dyes
ES391781A1 (en) Dyeing polyamide fibers with chromium-donating monoazo dyestuffs
ES396851A1 (en) Procedure for the preparation of azoic compounds desprovistos of sulfonic groups. (Machine-translation by Google Translate, not legally binding)
ES387358A1 (en) A method of manufacturing an acid coloring for natural and synthetic polyamide fibers and for secondary cellulose acetate fibers. (Machine-translation by Google Translate, not legally binding)
ES393608A1 (en) Azo dyestuffs
ES385420A1 (en) Substituted 4-(2-nitroisobutylamino)-azobenzene
ES446398A2 (en) Water-insoluble monoazo pyridone dyestuffs
ES439849A1 (en) Azo dyestuffs from aminopyridine coupling components
ES299453A1 (en) Procedure for the preparation of insoluble monoazoic colorants in water (Machine-translation by Google Translate, not legally binding)
ES347093A1 (en) A procedure for preparing a monoazoic coloring soluble in water. (Machine-translation by Google Translate, not legally binding)