GB1289243A - - Google Patents
Info
- Publication number
- GB1289243A GB1289243A GB1289243DA GB1289243A GB 1289243 A GB1289243 A GB 1289243A GB 1289243D A GB1289243D A GB 1289243DA GB 1289243 A GB1289243 A GB 1289243A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methyl
- lactones
- cyclohexanone
- urea
- hydrogen peroxide
- 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
- C07D—HETEROCYCLIC COMPOUNDS
- C07D313/00—Heterocyclic compounds containing rings of more than six members having one oxygen atom as the only ring hetero atom
- C07D313/02—Seven-membered rings
- C07D313/04—Seven-membered rings not condensed with other rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
1289243 Production of lactones LEUNAWERKE "WALTER ULBRICHT" VEB 25 March 1971 7796/71 Heading C2C Lactones are obtained by reacting cyclic ketones with an adduct of urea and hydrogen peroxide in the presence of formic acid at a temperature of 0-100‹ C. The urea-hydrogen peroxide adduct is preferably used in a molar excess relative to the cyclic ketone, e.g. in a molar ratio between 1À1 and 2À5 : 1, and the reaction may be conducted in an organic solvent. Specified cyclic ketone starting materials are cyclopentanone, cyclohexanone, and 2 - methyl-, 3 - methyl-, 4 - methyl-, 4 - tertbutyl-, and 2-cyclohexyl-cyclohexanone.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB779671 | 1971-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1289243A true GB1289243A (en) | 1972-09-13 |
Family
ID=9839913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1289243D Expired GB1289243A (en) | 1971-03-25 | 1971-03-25 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1289243A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6346599B1 (en) | 1997-08-25 | 2002-02-12 | Union Carbide Chemicals & Plastics Technology Corporation | Biodegradable lactone copolymers |
| CN109503540A (en) * | 2017-09-14 | 2019-03-22 | 黎明化工研究设计院有限责任公司 | A kind of method preparing 6-caprolactone and its continuous production device |
| CN110922324A (en) * | 2019-10-24 | 2020-03-27 | 上海大学 | Preparation method of 5(6) -decenoic acid |
-
1971
- 1971-03-25 GB GB1289243D patent/GB1289243A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6346599B1 (en) | 1997-08-25 | 2002-02-12 | Union Carbide Chemicals & Plastics Technology Corporation | Biodegradable lactone copolymers |
| CN109503540A (en) * | 2017-09-14 | 2019-03-22 | 黎明化工研究设计院有限责任公司 | A kind of method preparing 6-caprolactone and its continuous production device |
| CN109503540B (en) * | 2017-09-14 | 2023-05-05 | 黎明化工研究设计院有限责任公司 | Method for preparing epsilon-caprolactone and continuous production device thereof |
| CN110922324A (en) * | 2019-10-24 | 2020-03-27 | 上海大学 | Preparation method of 5(6) -decenoic acid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |