GB1448502A - Process for the preparation of mono or disazomethine dyestuffs - Google Patents
Process for the preparation of mono or disazomethine dyestuffsInfo
- Publication number
- GB1448502A GB1448502A GB469174A GB469174A GB1448502A GB 1448502 A GB1448502 A GB 1448502A GB 469174 A GB469174 A GB 469174A GB 469174 A GB469174 A GB 469174A GB 1448502 A GB1448502 A GB 1448502A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mono
- diamine
- aromatic
- reaction
- disazomethine
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B55/00—Azomethine dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring (AREA)
Abstract
1448502 Preparing azomethines HOECHST AG 1 Feb 1974 [14 June 1973] 04691/74 Heading C4P Mono- and disazomethines containing an OH group orthoto the azomethine linkage are prepared by condensing an aromatic o-hydroxy aldehyde with an aliphatic, cycloaliphatic, aromatic or heterocyclic monoamine or diamine or with hydrazine in a neutral aqueous medium under a nitrogen atmosphere. The reaction takes place using approximately stoichiometric amounts in aqueous supension or emulsion initially at 10-30 C. and then at 50-80 C. The reaction may take place under grinding conditions, a salt form of the mono- or diamine may be used and the free amine liberated by addition of an alkali. A dispersing or emulsifying agent may be present. The products are used to colour polymers, lacquers and printing pastes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2330280A DE2330280C2 (en) | 1973-06-14 | 1973-06-14 | Process for the preparation of water-insoluble, metal-free mono- or disazomethine dyes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1448502A true GB1448502A (en) | 1976-09-08 |
Family
ID=5883984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB469174A Expired GB1448502A (en) | 1973-06-14 | 1974-02-01 | Process for the preparation of mono or disazomethine dyestuffs |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5034027A (en) |
| AR (1) | AR201757A1 (en) |
| BE (1) | BE810569A (en) |
| BR (1) | BR7400710A (en) |
| CA (1) | CA1032951A (en) |
| CH (1) | CH587895A5 (en) |
| DE (1) | DE2330280C2 (en) |
| DK (1) | DK55174A (en) |
| FR (1) | FR2233374B1 (en) |
| GB (1) | GB1448502A (en) |
| IN (1) | IN141044B (en) |
| IT (1) | IT1007189B (en) |
| NL (1) | NL7401128A (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1210818B (en) * | 1964-02-01 | 1966-02-17 | Schering Ag | Process for the preparation of 1,1-ethylene-17alpha-alkyl-delta 2-5alpha-androsten-17beta-ols and their 17-esters |
| FR1505360A (en) * | 1966-02-03 | 1967-12-15 | Kuhlmann Ets | New disazomethine pigments |
-
1973
- 1973-06-14 DE DE2330280A patent/DE2330280C2/en not_active Expired
-
1974
- 1974-01-28 NL NL7401128A patent/NL7401128A/xx not_active Application Discontinuation
- 1974-01-30 CH CH129274A patent/CH587895A5/xx not_active IP Right Cessation
- 1974-01-30 IN IN200/CAL/1974A patent/IN141044B/en unknown
- 1974-01-31 JP JP49012319A patent/JPS5034027A/ja active Pending
- 1974-01-31 BR BR710/74A patent/BR7400710A/en unknown
- 1974-01-31 AR AR252154A patent/AR201757A1/en active
- 1974-01-31 IT IT20045/74A patent/IT1007189B/en active
- 1974-02-01 CA CA191,557A patent/CA1032951A/en not_active Expired
- 1974-02-01 GB GB469174A patent/GB1448502A/en not_active Expired
- 1974-02-01 DK DK55174*#A patent/DK55174A/da unknown
- 1974-02-04 BE BE140521A patent/BE810569A/en unknown
- 1974-02-04 FR FR7403595A patent/FR2233374B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2330280B1 (en) | 1974-11-28 |
| CA1032951A (en) | 1978-06-13 |
| JPS5034027A (en) | 1975-04-02 |
| CH587895A5 (en) | 1977-05-13 |
| BR7400710A (en) | 1975-10-07 |
| AR201757A1 (en) | 1975-04-15 |
| DE2330280C2 (en) | 1975-08-07 |
| NL7401128A (en) | 1974-12-17 |
| AU6502774A (en) | 1975-07-31 |
| FR2233374A1 (en) | 1975-01-10 |
| IT1007189B (en) | 1976-10-30 |
| DK55174A (en) | 1975-02-03 |
| FR2233374B1 (en) | 1978-02-10 |
| IN141044B (en) | 1977-01-15 |
| BE810569A (en) | 1974-08-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |