GB1411342A - Process for the production of omega-ureidocarboxylic acids - Google Patents
Process for the production of omega-ureidocarboxylic acidsInfo
- Publication number
- GB1411342A GB1411342A GB893673A GB893673A GB1411342A GB 1411342 A GB1411342 A GB 1411342A GB 893673 A GB893673 A GB 893673A GB 893673 A GB893673 A GB 893673A GB 1411342 A GB1411342 A GB 1411342A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- omega
- production
- feb
- ureidocarboxylic acids
- 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
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/18—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
- C07C273/1854—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas by reactions not involving the formation of the N-C(O)-N- moiety
- C07C273/1863—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas by reactions not involving the formation of the N-C(O)-N- moiety from urea
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1411342 Omega-ureidocarboxylic acids BADISCHE ANILIN- & SODA-FABRIK AG 23 Feb 1973 [24 Feb 1972 11 Jan 1973] 8936/73 Heading C2C Omega-ureidocarboxylic acids are produced by reaction of an omega-lactam with urea at elevated temperature in the presence of an inert solvent, e.g. water or a C 1 to C 4 alkanol or a mixture thereof, and in the presence of a mineral acid or a strongly acid ion exchanger. Exemplified is the production of #-ureidocaproic acid, #-ureidobutyric acid and 8-ureidocaprylic acid from caprolactam, pyrrolidone-(2), and caprylolactam respectively. The starting material may also be the reaction mixture containing an omega-lactam obtained from the Beckmann rearrangement of the corresponding oxime with sulphuric acid, oleum or phosphoric acid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722208612 DE2208612A1 (en) | 1972-02-24 | 1972-02-24 | Omega-ureido carboxylic acids prepn - from lactams and urea |
| DE19732301206 DE2301206A1 (en) | 1973-01-11 | 1973-01-11 | Omega-ureido carboxylic acids prepn - from lactams and urea |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1411342A true GB1411342A (en) | 1975-10-22 |
Family
ID=25762767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB893673A Expired GB1411342A (en) | 1972-02-24 | 1973-02-23 | Process for the production of omega-ureidocarboxylic acids |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE795721A (en) |
| CH (1) | CH575384A5 (en) |
| FR (1) | FR2173184B3 (en) |
| GB (1) | GB1411342A (en) |
| IT (1) | IT978827B (en) |
| NL (1) | NL7301899A (en) |
-
0
- BE BE795721D patent/BE795721A/en unknown
-
1973
- 1973-02-05 IT IT2004773A patent/IT978827B/en active
- 1973-02-09 NL NL7301899A patent/NL7301899A/xx unknown
- 1973-02-20 CH CH240773A patent/CH575384A5/xx not_active IP Right Cessation
- 1973-02-22 FR FR7306312A patent/FR2173184B3/fr not_active Expired
- 1973-02-23 GB GB893673A patent/GB1411342A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT978827B (en) | 1974-09-20 |
| BE795721A (en) | 1973-08-21 |
| FR2173184A1 (en) | 1973-10-05 |
| FR2173184B3 (en) | 1976-02-13 |
| NL7301899A (en) | 1973-08-28 |
| CH575384A5 (en) | 1976-05-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |