GB2137621B - Preparation of 1-naphthol-4-sulphonic acid - Google Patents

Preparation of 1-naphthol-4-sulphonic acid

Info

Publication number
GB2137621B
GB2137621B GB08408448A GB8408448A GB2137621B GB 2137621 B GB2137621 B GB 2137621B GB 08408448 A GB08408448 A GB 08408448A GB 8408448 A GB8408448 A GB 8408448A GB 2137621 B GB2137621 B GB 2137621B
Authority
GB
United Kingdom
Prior art keywords
naphthol
preparation
sulphonic acid
sulphonic
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
Application number
GB08408448A
Other versions
GB8408448D0 (en
GB2137621A (en
Inventor
Werner Veit
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.)
Sandoz AG
Original Assignee
Sandoz 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 Sandoz AG filed Critical Sandoz AG
Publication of GB8408448D0 publication Critical patent/GB8408448D0/en
Publication of GB2137621A publication Critical patent/GB2137621A/en
Application granted granted Critical
Publication of GB2137621B publication Critical patent/GB2137621B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/42—Separation; Purification; Stabilisation; Use of additives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
GB08408448A 1983-04-05 1984-04-02 Preparation of 1-naphthol-4-sulphonic acid Expired GB2137621B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0118683A ATA118683A (en) 1983-04-05 1983-04-05 METHOD FOR PRODUCING 1-NAPHTHOL-4-SULPHONIC ACID (NEVILE-WINTHER ACID)

Publications (3)

Publication Number Publication Date
GB8408448D0 GB8408448D0 (en) 1984-05-10
GB2137621A GB2137621A (en) 1984-10-10
GB2137621B true GB2137621B (en) 1986-10-08

Family

ID=3508464

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08408448A Expired GB2137621B (en) 1983-04-05 1984-04-02 Preparation of 1-naphthol-4-sulphonic acid

Country Status (7)

Country Link
JP (1) JPS59193864A (en)
AT (1) ATA118683A (en)
CH (1) CH659064A5 (en)
DE (1) DE3411058A1 (en)
FR (1) FR2543948B1 (en)
GB (1) GB2137621B (en)
IT (1) IT1199103B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0218005B1 (en) * 1985-10-09 1988-11-23 Hoechst Aktiengesellschaft Single pot process for the production of 2-acetamidonaphthalene-6-sulphonic acid with a high purity
CN1044808C (en) * 1997-04-30 1999-08-25 常州市常宇化工厂 Technology for industrialized production of 1-naphthol-4-sulfonic-acid and sodium salt thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1452481A (en) * 1922-07-27 1923-04-17 British Dyestuffs Corp Ltd Manufacture of 1.4 naphthol sulphonic acid

Also Published As

Publication number Publication date
ATA118683A (en) 1985-06-15
FR2543948B1 (en) 1986-11-28
IT8447995A1 (en) 1985-10-05
IT1199103B (en) 1988-12-30
DE3411058A1 (en) 1984-10-11
JPS59193864A (en) 1984-11-02
FR2543948A1 (en) 1984-10-12
GB8408448D0 (en) 1984-05-10
CH659064A5 (en) 1986-12-31
IT8447995A0 (en) 1984-04-05
GB2137621A (en) 1984-10-10

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Legal Events

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