GB1499766A - Manufacture of isonitrosoacetanilides - Google Patents
Manufacture of isonitrosoacetanilidesInfo
- Publication number
- GB1499766A GB1499766A GB1936875A GB1936875A GB1499766A GB 1499766 A GB1499766 A GB 1499766A GB 1936875 A GB1936875 A GB 1936875A GB 1936875 A GB1936875 A GB 1936875A GB 1499766 A GB1499766 A GB 1499766A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrogen
- formula
- nitro
- preparation
- isonitrosoacetanilides
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1499766 Process for the preparation of isonitroacetanilides BASF AG 8 May 1975 [20 May 1974] 19368/75 Heading C2C The invention comprises a process for the preparation of isonitrosoacetanilides of the general Formula I wherein R<SP>1</SP> and R<SP>2</SP> are independently a hydrogen or halogen atom or a nitro, carboxyl or alkoxy group or an aliphatic hydrocarbon radical optionally substituted by one or more substituents which are inert under the reaction conditions in which an aniline of Formula II wherein R<SP>1</SP> or R<SP>2</SP> are as defined above, is reacted with chloral and hydroxylamine at a pH of 0À2 to 2À0 while adding a base. In the examples R<SP>2</SP> is a hydrogen atom and R<SP>1</SP> is either hydrogen or a 4-chloro or 4-methyl substitutent whilst suitable starting materials disclosed have Formula II wherein R<SP>1</SP>-R<SP>2</SP> are C 1-4 alkyl, nitro, C 1-4 alkoxy, CO 2 H groups, Cl or Br.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742424372 DE2424372C3 (en) | 1974-05-20 | 1974-05-20 | Process for the preparation of isonitrosoacetanilides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1499766A true GB1499766A (en) | 1978-02-01 |
Family
ID=5916012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1936875A Expired GB1499766A (en) | 1974-05-20 | 1975-05-08 | Manufacture of isonitrosoacetanilides |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS50160229A (en) |
| CH (1) | CH594615A5 (en) |
| DE (1) | DE2424372C3 (en) |
| FR (1) | FR2272073B3 (en) |
| GB (1) | GB1499766A (en) |
| IT (1) | IT1037681B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3333994A1 (en) * | 1983-09-21 | 1985-04-04 | Troponwerke GmbH & Co KG, 5000 Köln | NEW PYRIDOINDOL DERIVATIVES, METHOD FOR THEIR PRODUCTION AND THEIR USE |
| CN102161629A (en) * | 2010-12-30 | 2011-08-24 | 浙江山峪染料化工有限公司 | Treatment method for recycling isatin wastewater |
| CN102140070A (en) * | 2011-01-18 | 2011-08-03 | 浙江山峪染料化工有限公司 | Method for recycling 2-(hydroxyimino)-N-acetanilide mother solution |
-
1974
- 1974-05-20 DE DE19742424372 patent/DE2424372C3/en not_active Expired
-
1975
- 1975-04-28 IT IT2279675A patent/IT1037681B/en active
- 1975-05-08 GB GB1936875A patent/GB1499766A/en not_active Expired
- 1975-05-15 FR FR7515167A patent/FR2272073B3/fr not_active Expired
- 1975-05-15 CH CH628975A patent/CH594615A5/xx not_active IP Right Cessation
- 1975-05-17 JP JP5795975A patent/JPS50160229A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2272073B3 (en) | 1978-11-17 |
| IT1037681B (en) | 1979-11-20 |
| DE2424372B2 (en) | 1980-01-03 |
| CH594615A5 (en) | 1978-01-13 |
| DE2424372C3 (en) | 1980-09-11 |
| JPS50160229A (en) | 1975-12-25 |
| DE2424372A1 (en) | 1975-12-11 |
| FR2272073A1 (en) | 1975-12-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19950507 |