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GB2001645B - Process for preparing tobias acid - Google Patents

Process for preparing tobias acid

Info

Publication number
GB2001645B
GB2001645B GB787830890A GB7830890A GB2001645B GB 2001645 B GB2001645 B GB 2001645B GB 787830890 A GB787830890 A GB 787830890A GB 7830890 A GB7830890 A GB 7830890A GB 2001645 B GB2001645 B GB 2001645B
Authority
GB
United Kingdom
Prior art keywords
preparing
tobias acid
tobias
acid
preparing tobias
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
GB787830890A
Other versions
GB2001645A (en
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of GB2001645A publication Critical patent/GB2001645A/en
Application granted granted Critical
Publication of GB2001645B publication Critical patent/GB2001645B/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
    • C07C303/32—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of salts of sulfonic acids
    • 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
    • C07C303/44—Separation; Purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB787830890A 1977-07-29 1978-07-24 Process for preparing tobias acid Expired GB2001645B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82026277A 1977-07-29 1977-07-29

Publications (2)

Publication Number Publication Date
GB2001645A GB2001645A (en) 1979-02-07
GB2001645B true GB2001645B (en) 1982-02-03

Family

ID=25230323

Family Applications (1)

Application Number Title Priority Date Filing Date
GB787830890A Expired GB2001645B (en) 1977-07-29 1978-07-24 Process for preparing tobias acid

Country Status (4)

Country Link
JP (1) JPS5427549A (en)
DE (1) DE2831993A1 (en)
FR (1) FR2398726A1 (en)
GB (1) GB2001645B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2831965A1 (en) * 1977-07-29 1979-02-08 American Cyanamid Co PROCESS FOR THE PREPARATION OF 2-AMINO- 1-NAPHTHALINE SULFONIC ACID
DE2831994A1 (en) * 1977-07-29 1979-02-08 American Cyanamid Co PROCESS FOR PRODUCTION OF TOBIAC ACID
DE3070185D1 (en) * 1979-12-20 1985-03-28 Ciba Geigy Ag Process for the preparation of 2-amino-1-naphthalene sulfonic acid
JPH0352037Y2 (en) * 1985-04-26 1991-11-11
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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2058911A (en) * 1931-12-08 1936-10-27 Nat Aniline & Chem Co Inc Process for the purification of naphthylamine sulphonic acid
GB436464A (en) * 1933-04-11 1935-10-11 Du Pont Improvements in or relating to the manufacture of naphthylaminesulphonic acids
CA1051023A (en) * 1975-03-14 1979-03-20 Henry X. Kaempfen Method for tobias acid manufacture
DE2831992A1 (en) * 1977-07-29 1979-02-08 American Cyanamid Co PROCESS FOR THE PREPARATION OF 2-AMINO- 1-NAPHTHALINE SULFONIC ACID
DE2831965A1 (en) * 1977-07-29 1979-02-08 American Cyanamid Co PROCESS FOR THE PREPARATION OF 2-AMINO- 1-NAPHTHALINE SULFONIC ACID
DE2831994A1 (en) * 1977-07-29 1979-02-08 American Cyanamid Co PROCESS FOR PRODUCTION OF TOBIAC ACID
DE2831966A1 (en) * 1977-07-29 1979-02-08 American Cyanamid Co PROCESS FOR THE PREPARATION OF 2-AMINO- 1-NAPHTHALINE SULFONIC ACID

Also Published As

Publication number Publication date
DE2831993A1 (en) 1979-02-08
FR2398726A1 (en) 1979-02-23
JPS5427549A (en) 1979-03-01
GB2001645A (en) 1979-02-07

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Legal Events

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