GB924257A - Cyclopentane derivatives and a process for the manufacture thereof - Google Patents
Cyclopentane derivatives and a process for the manufacture thereofInfo
- Publication number
- GB924257A GB924257A GB25737/62A GB2573762A GB924257A GB 924257 A GB924257 A GB 924257A GB 25737/62 A GB25737/62 A GB 25737/62A GB 2573762 A GB2573762 A GB 2573762A GB 924257 A GB924257 A GB 924257A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cyclopentane
- trimethyl
- hydroxy
- acid
- camphonanic
- 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
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/06—Systems containing only non-condensed rings with a five-membered ring
- C07C2601/08—Systems containing only non-condensed rings with a five-membered ring the ring being saturated
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention comprises 1-acetyl-1.2.2-trimethyl-cyclopentane and the corresponding compounds having in the 3- or 4-position a hydroxyl group. These compounds may be obtained by reacting 1-carboxy-1.2.2-trimethyl-cyclopentane or a 3- or 4-(hydroxy or oxo)-derivative thereof with methyl-lithium (after reduction of a ring-keto group to a hydroxyl group in cases where it is desired to prepare a hydroxy compound using a ketonic starting material). In an example, camphonanic acid in ether is added dropwise to an ethereal solution of methyl lithium and the mixture is maintained under reflux for several hours and cooled. Isolation of the neutral product gives 1-acetyl-1.2.2-trimethyl-cyclopentane. In another example, 3-keto-camphonanic acid is treated with potassium borohydride, caustic soda, and water, heated and then cooled and treated with sulphuric acid to give 3-hydroxy-camphonanic acid. This hydroxy compound is treated with methyl lithium and refluxed to give 1-acetyl- 3-hydroxy- 1.2.2.-trimethyl cyclopentane. Specification 924,256 also is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25737/62A GB924257A (en) | 1959-11-25 | 1959-11-25 | Cyclopentane derivatives and a process for the manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25737/62A GB924257A (en) | 1959-11-25 | 1959-11-25 | Cyclopentane derivatives and a process for the manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB924257A true GB924257A (en) | 1963-04-24 |
Family
ID=10232463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25737/62A Expired GB924257A (en) | 1959-11-25 | 1959-11-25 | Cyclopentane derivatives and a process for the manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB924257A (en) |
-
1959
- 1959-11-25 GB GB25737/62A patent/GB924257A/en not_active Expired
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