GB862127A - Derivatives of 2-hydroxy-3-naphthanilide - Google Patents
Derivatives of 2-hydroxy-3-naphthanilideInfo
- Publication number
- GB862127A GB862127A GB2144858A GB2144858A GB862127A GB 862127 A GB862127 A GB 862127A GB 2144858 A GB2144858 A GB 2144858A GB 2144858 A GB2144858 A GB 2144858A GB 862127 A GB862127 A GB 862127A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbon atoms
- hydrogen
- ring
- alkyl
- addition
- 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
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/12—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by halogen atoms or by nitro or nitroso groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention comprises compounds of the formula <FORM:0862127/IV (b)/1> (wherein R1 is hydrogen, an alkyl radical of at most 16 carbon atoms or a dialkylamino or aralkyl radical, R2 has the same values excluding hydrogen, or R1 and R2 are joined to form, together with the nitrogen atom, a saturated heterocyclic ring which may be alkyl substituted and wherein the benzene ring A bears at least one substituent selected from halogen atoms and alkyl of at most 6 carbon atoms, alkoxy of at most 6 carbon atoms, acyl, alkylaminosulphonyl, carboxy, benzamido, phenoxy and tolyloxy radicals provided that when this ring has a 2-methyl or 2-methoxy substituent at least one additional substituent is also present therein) and acid-addition salts thereof; and their preparation by reacting the corresponding 1 - unsubstituted - 2 - hydroxy - 3 - naphthanilide with formaldehyde or a functional derivative thereof and the amine R1R2NH. Suitably paraformaldehyde is used and the reaction is effected in a solvent such as aqueous ethanol or benzene. It may be accelerated or completed by the application of heat, by addition of excess amine or by the addition of a tertiary amine. Examples are given and hydrochlorides of some of the products are described. The Provisional Specification describes compounds of the formula <FORM:0862127/IV (b)/2> (wherein R and R1 are hydrogen or hydrocarbon radicals, optionally substituted, or form, together with the nitrogen atom, a heterocyclic ring, and the benzene ring A may optionally bear one or more substituents) other than the compounds disclosed in U.S.A. Specification 2,234,036.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2144858A GB862127A (en) | 1958-07-04 | 1958-07-04 | Derivatives of 2-hydroxy-3-naphthanilide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2144858A GB862127A (en) | 1958-07-04 | 1958-07-04 | Derivatives of 2-hydroxy-3-naphthanilide |
Publications (1)
Publication Number | Publication Date |
---|---|
GB862127A true GB862127A (en) | 1961-03-01 |
Family
ID=10163119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2144858A Expired GB862127A (en) | 1958-07-04 | 1958-07-04 | Derivatives of 2-hydroxy-3-naphthanilide |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB862127A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003066613A1 (en) * | 2002-02-07 | 2003-08-14 | Novartis Ag | N-phenyl-2-pyrimidine-amine derivatives |
CN109880433A (en) * | 2019-02-13 | 2019-06-14 | 浙江浩川科技有限公司 | Organic pigment hyper-dispersant and preparation method, color compositions and water-based ink |
-
1958
- 1958-07-04 GB GB2144858A patent/GB862127A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003066613A1 (en) * | 2002-02-07 | 2003-08-14 | Novartis Ag | N-phenyl-2-pyrimidine-amine derivatives |
US7456283B2 (en) | 2002-02-07 | 2008-11-25 | Novartis Ag | N-phenyl-2-pyrimidine-amine derivatives |
US7579467B2 (en) | 2002-02-07 | 2009-08-25 | Novartis Ag | N-phenyl-2-pyrimidine-amine derivatives |
US7816359B2 (en) | 2002-02-07 | 2010-10-19 | Novartis Ag | N-phenyl-2-pyrimidine-amine derivatives |
US7825247B2 (en) | 2002-02-07 | 2010-11-02 | Novartis Ag | N-phenyl-2-pyrimidine-amine derivatives |
US9573928B2 (en) | 2002-02-07 | 2017-02-21 | Novartis Ag | N-phenyl-2-pyrimidine-amine derivatives |
CN109880433A (en) * | 2019-02-13 | 2019-06-14 | 浙江浩川科技有限公司 | Organic pigment hyper-dispersant and preparation method, color compositions and water-based ink |
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