GB1134851A - Improvements relating to the production of n-hydroxy compounds - Google Patents
Improvements relating to the production of n-hydroxy compoundsInfo
- Publication number
- GB1134851A GB1134851A GB1435065A GB1435065A GB1134851A GB 1134851 A GB1134851 A GB 1134851A GB 1435065 A GB1435065 A GB 1435065A GB 1435065 A GB1435065 A GB 1435065A GB 1134851 A GB1134851 A GB 1134851A
- Authority
- GB
- United Kingdom
- Prior art keywords
- azeotrope
- oxide
- water
- preferred
- alkyl
- 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
- Hydrogenated Pyridines (AREA)
Abstract
1,134,851. Hydroxylamines. NATIONAL RESEARCH DEVELOPMENT CORP. 25 March, 1966 [5 April, 1965], No. 14350/65. Heading C2C. Hydroxylamines of the formula R<SP>1</SP>R<SP>2</SP>N-OH, where R<SP>1</SP> and R<SP>2</SP> are alkyl or aryl groups or together with the nitrogen atom represent a 5- or 6-membered heterocyclic ring, which may contain other hetero atoms, are made by oxidizing a tertiary amine of the formula R<SP>1</SP>R<SP>2</SP>N-Y, where Y is an alkyl or cycloalkyl group of 2 or more carbon atoms, with hydrogen peroxide to form a water-containing N-oxide and heating the N-oxide with an inert solvent which forms an azeotrope with water and so distilling-off the water as an azeotrope and decomposing the N-oxide to form the hydroxylamine and the olefin corresponding to Y. It is preferred to use an inert azeotrope-forming solvent having a boiling- point sufficiently high to enable the olefin elimination reaction to proceed during the distillation of the azeotrope. Solvents boiling in the range 90-130‹ C. are preferred. Preferred reactants are those in which Y is a C 2-4 alkyl group, e.g. ethyl. Examples relate to the preparation of N-hydroxypiperidine, dibutylhydroxylamine,dimethylhydroxylamine, N - hydroxymorpholine and phenylethylhydroxylamine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1435065A GB1134851A (en) | 1965-04-05 | 1965-04-05 | Improvements relating to the production of n-hydroxy compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1435065A GB1134851A (en) | 1965-04-05 | 1965-04-05 | Improvements relating to the production of n-hydroxy compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1134851A true GB1134851A (en) | 1968-11-27 |
Family
ID=10039616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1435065A Expired GB1134851A (en) | 1965-04-05 | 1965-04-05 | Improvements relating to the production of n-hydroxy compounds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1134851A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5144075A (en) * | 1991-01-17 | 1992-09-01 | Ciba-Geigy Corporation | Process for the preparation of n,n-dihydrocarbylhydroxylamines |
-
1965
- 1965-04-05 GB GB1435065A patent/GB1134851A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5144075A (en) * | 1991-01-17 | 1992-09-01 | Ciba-Geigy Corporation | Process for the preparation of n,n-dihydrocarbylhydroxylamines |
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