GB381602A - Substituted naphthalene derivatives - Google Patents
Substituted naphthalene derivativesInfo
- Publication number
- GB381602A GB381602A GB1987231A GB1987231A GB381602A GB 381602 A GB381602 A GB 381602A GB 1987231 A GB1987231 A GB 1987231A GB 1987231 A GB1987231 A GB 1987231A GB 381602 A GB381602 A GB 381602A
- Authority
- GB
- United Kingdom
- Prior art keywords
- naphthol
- benzeneazo
- aqueous
- sulphobenzeneazo
- hydroxy
- 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
- C07C255/00—Carboxylic acid nitriles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Naphthalene derivatives are manufactured by the action of a cyanide on a nitroso-naphthol or an azo compound derived from a naphthol. The products are probably cyanoaminonaphthols, together with which are obtained other products the constitution of which is unknown. The process is preferably performed in aqueous or alcoholic suspension with the aid of heat. In examples: (1) crude a -nitroso-b -naphthol is treated in aqueous suspension with potassium cyanide solution; (2) 1-benzeneazo-2-naphthol is treated in alcoholic suspension with potassium cyanide solution (aqueous), yielding a product which is probably 1 - amino - 2 - hydroxy - 4 - cyano - naphthalene, together with a second product; the starting material may be replaced by 1-p-sulphobenzeneazo - 2 - naphthol sodium salt; (3) 4-benzeneazo-1-naphthol is treated with potassium cyanide in aqueous alcoholic suspension, yielding a product which is apparently 4 - amino - 1 - hydroxy - 2 (or 3) - cyano - naphthalene; the starting material may be replaced by 4-p-sulphobenzeneazo-1-naphthol sodium salt. Other starting materials specified are the sodium salts of 1-benzeneazo-2-naphthol-6 : 8-disulphonic acid, 1-benzeneazo-2-naphthol-3-carboxylic acid and 1-p-sulphobenzeneazo-2-naphthol-3-carboxylic anilide, which yield products believed to be substituted 1-amino-2-hydroxy-4-cyanonaphthalenes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1987231A GB381602A (en) | 1931-07-10 | 1931-07-10 | Substituted naphthalene derivatives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1987231A GB381602A (en) | 1931-07-10 | 1931-07-10 | Substituted naphthalene derivatives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB381602A true GB381602A (en) | 1932-10-10 |
Family
ID=10136582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1987231A Expired GB381602A (en) | 1931-07-10 | 1931-07-10 | Substituted naphthalene derivatives |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB381602A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3040020A (en) * | 1962-06-19 | Metal complex of x-cyanonaphtkyl- |
-
1931
- 1931-07-10 GB GB1987231A patent/GB381602A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3040020A (en) * | 1962-06-19 | Metal complex of x-cyanonaphtkyl- |
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