GB2001641B - Process for preparing tobias acid - Google Patents
Process for preparing tobias acidInfo
- Publication number
- GB2001641B GB2001641B GB787830886A GB7830886A GB2001641B GB 2001641 B GB2001641 B GB 2001641B GB 787830886 A GB787830886 A GB 787830886A GB 7830886 A GB7830886 A GB 7830886A GB 2001641 B GB2001641 B GB 2001641B
- 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
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US82027777A | 1977-07-29 | 1977-07-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2001641A GB2001641A (en) | 1979-02-07 |
GB2001641B true GB2001641B (en) | 1982-03-10 |
Family
ID=25230367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB787830886A Expired GB2001641B (en) | 1977-07-29 | 1978-07-24 | Process for preparing tobias acid |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5427555A (en) |
DE (1) | DE2831994A1 (en) |
FR (1) | FR2398725A1 (en) |
GB (1) | GB2001641B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2831995A1 (en) * | 1977-07-29 | 1979-02-08 | American Cyanamid Co | PROCESS FOR THE PREPARATION OF AN AQUATIC SOLUTION OF AN ALKALINE SALT OF 2-HYDROXY-1-NAPHTHALINE SULPHONIC ACID |
DE2831956A1 (en) * | 1977-07-29 | 1979-02-15 | American Cyanamid Co | Process for the preparation of an aqueous solution of an alkali metal salt of 2-Hydroxy-1-NAPHTHALINE-SULPHONIC ACID |
DE2831993A1 (en) * | 1977-07-29 | 1979-02-08 | American Cyanamid Co | PROCESS FOR THE PREPARATION OF 2-AMINO-1NAPHTHALINE SULPHONIC ACID |
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 |
DE3070185D1 (en) * | 1979-12-20 | 1985-03-28 | Ciba Geigy Ag | Process for the preparation of 2-amino-1-naphthalene sulfonic acid |
CN101962294A (en) * | 2010-07-15 | 2011-02-02 | 上海大学 | W-type low-and-medium temperature NTC-PTC binary composite thermistor material and preparation method thereof |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE2831993A1 (en) * | 1977-07-29 | 1979-02-08 | American Cyanamid Co | PROCESS FOR THE PREPARATION OF 2-AMINO-1NAPHTHALINE SULPHONIC ACID |
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 |
DE2831966A1 (en) * | 1977-07-29 | 1979-02-08 | American Cyanamid Co | PROCESS FOR THE PREPARATION OF 2-AMINO- 1-NAPHTHALINE SULFONIC ACID |
-
1978
- 1978-07-20 DE DE19782831994 patent/DE2831994A1/en not_active Withdrawn
- 1978-07-24 GB GB787830886A patent/GB2001641B/en not_active Expired
- 1978-07-27 FR FR7822223A patent/FR2398725A1/en active Pending
- 1978-07-29 JP JP9208578A patent/JPS5427555A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS5427555A (en) | 1979-03-01 |
GB2001641A (en) | 1979-02-07 |
FR2398725A1 (en) | 1979-02-23 |
DE2831994A1 (en) | 1979-02-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |