GB940255A - Cycloaliphatic carboxylic acids and esters thereof - Google Patents
Cycloaliphatic carboxylic acids and esters thereofInfo
- Publication number
- GB940255A GB940255A GB51862A GB51862A GB940255A GB 940255 A GB940255 A GB 940255A GB 51862 A GB51862 A GB 51862A GB 51862 A GB51862 A GB 51862A GB 940255 A GB940255 A GB 940255A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carboxylic acids
- cyclododecane
- cyclododec
- acids
- carboxylic acid
- 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
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/0026—Essential oils; Perfumes compounds containing an alicyclic ring not condensed with another ring
- C11B9/0038—Essential oils; Perfumes compounds containing an alicyclic ring not condensed with another ring the ring containing more than six carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention comprises cyclododecane carboxylic acid, the cyclododec-1-ene carboxylic acid of melting point 121 DEG C., the cis and trans cyclododec-2-ene carboxylic acids and the esters of said acids. Cyclododecane carboxylic acid is prepared by hydrogenating e.g. in the presence of Raney nickel as catalyst, one or more cyclododec-1-ene carboxylic acids and/or cyclododec-2-ene carboxylic acids. The unsaturated acids are prepared by reacting the sodium derivative of cyclododecanone (formed by the action of sodamide in the presence of anhydrous diethyl ether on cyclododecanone) with ethyl carbonate to produce ethyl 2-oxo cyclododecane carboxylate, subjecting the product to treatment with an alkali metal borohydride in the presence of an alkali metal hydroxide, dehydrating the isomeric 2-hydroxy cyclododecane carboxylic acids thus obtained, e.g. by the use of a dehydration catalyst such as para-toluene sulphonic acid, and separating the cyclododecene carboxylic acids obtained. Dodecanolactam is formed by reacting cyclododecane carboxylic acid with a nitrosating agent, hydrolysing the product obtained and finally treating with a compound having an alkaline reaction, more especially an alkali metal carbonate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR849401A FR1286709A (en) | 1960-05-06 | 1961-01-11 | Cyclododecanecarboxylic acid and its preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB940255A true GB940255A (en) | 1963-10-30 |
Family
ID=8746518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB51862A Expired GB940255A (en) | 1961-01-11 | 1962-01-05 | Cycloaliphatic carboxylic acids and esters thereof |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH397655A (en) |
| GB (1) | GB940255A (en) |
-
1962
- 1962-01-05 GB GB51862A patent/GB940255A/en not_active Expired
- 1962-01-08 CH CH15462A patent/CH397655A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH397655A (en) | 1965-08-31 |
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