GB1346367A - Azo dyestuffs their manufacture and use - Google Patents

Azo dyestuffs their manufacture and use

Info

Publication number
GB1346367A
GB1346367A GB4991771A GB4991771A GB1346367A GB 1346367 A GB1346367 A GB 1346367A GB 4991771 A GB4991771 A GB 4991771A GB 4991771 A GB4991771 A GB 4991771A GB 1346367 A GB1346367 A GB 1346367A
Authority
GB
United Kingdom
Prior art keywords
amino
oct
azo dyestuffs
manufacture
oleum
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
GB4991771A
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.)
Novartis AG
Original Assignee
Ciba Geigy 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
Priority claimed from CH1583870A external-priority patent/CH564584A5/en
Priority claimed from CH1446271A external-priority patent/CH583184A5/en
Application filed by Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of GB1346367A publication Critical patent/GB1346367A/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
    • C09B62/00—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
    • C09B62/002—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the linkage of the reactive group being alternatively specified
    • C09B62/006—Azodyes
    • C09B62/008—Monoazo dyes

Landscapes

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

Abstract

1346367 Amino naphthalene sulphonic acids CIBA-GEIGY AG 27 Oct 1971 [27 Oct 1970 4 Oct 1971] 49917/71 Heading C2C [Also in Division C4] Compounds of formula where R 1 is H or C 1 -C 4 alkyl are prepared by sulphonation of the corresponding 2-amino-1- naphthylalkanesulphonic acids in oleum at normal or elevated temperatures. In Example 1, 2 - amino - 1 - sulphomethylnaphthalene is reacted with sulphuric acid monohydrate in oleum at 20-25‹ C. 2-amino-1-α-sulphoethylnaphthalene - 5 - sulphonic acid is prepared analogously. The compounds are used as intermediates in the preparation of azo dyestuffs.
GB4991771A 1970-10-27 1971-10-27 Azo dyestuffs their manufacture and use Expired GB1346367A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1583870A CH564584A5 (en) 1970-10-27 1970-10-27 Azo dyes - for cellulosic fibres, prepd from amino-sulphoalkyl - naphthalene derivs
CH1446271A CH583184A5 (en) 1971-10-04 1971-10-04 Azo dyes - for cellulosic fibres, prepd from amino-sulphoalkyl - naphthalene derivs

Publications (1)

Publication Number Publication Date
GB1346367A true GB1346367A (en) 1974-02-06

Family

ID=25714505

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4991771A Expired GB1346367A (en) 1970-10-27 1971-10-27 Azo dyestuffs their manufacture and use

Country Status (9)

Country Link
BE (1) BE774479A (en)
CA (1) CA940920A (en)
CS (1) CS196446B2 (en)
DE (1) DE2152511A1 (en)
FR (1) FR2111856B1 (en)
GB (1) GB1346367A (en)
IT (1) IT939663B (en)
NL (1) NL7114731A (en)
PL (1) PL81520B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH655734A5 (en) * 1982-09-13 1986-05-15 Sandoz Ag CHLORTRIAZINYL MONOAZO COMPOUNDS.

Also Published As

Publication number Publication date
NL7114731A (en) 1972-05-02
IT939663B (en) 1973-02-10
FR2111856A1 (en) 1972-06-09
DE2152511A1 (en) 1972-05-04
FR2111856B1 (en) 1977-01-28
CS196446B2 (en) 1980-03-31
BE774479A (en) 1972-04-26
PL81520B1 (en) 1975-08-30
CA940920A (en) 1974-01-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee