EP0000476B1 - Procédé de préparation de cyclopentadécanolide - Google Patents
Procédé de préparation de cyclopentadécanolide Download PDFInfo
- Publication number
- EP0000476B1 EP0000476B1 EP78100237A EP78100237A EP0000476B1 EP 0000476 B1 EP0000476 B1 EP 0000476B1 EP 78100237 A EP78100237 A EP 78100237A EP 78100237 A EP78100237 A EP 78100237A EP 0000476 B1 EP0000476 B1 EP 0000476B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acid
- oxa
- lactone
- cyclopentadecanolide
- give
- 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
- C07D315/00—Heterocyclic compounds containing rings having one oxygen atom as the only ring hetero atom according to more than one of groups C07D303/00 - C07D313/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C59/01—Saturated compounds having only one carboxyl group and containing hydroxy or O-metal groups
Definitions
- the invention relates to a process for the preparation of cyclopentadecanolide.
- Cyclopentadecanolide is a natural musk fragrance.
- Various processes are known for its production, but they have a number of disadvantages, in particular that they only give low yields and that the starting materials are not easily accessible.
- 15-hydroxypentadecanoic acid is cyclized by vacuum distillation of its polyester [J. At the. Chem. Soc. 58, 654 (1936)].
- This process has the disadvantage that the starting materials for the preparation of 15-hydroxy-pentadecanoic acid, such as 9,10,16-trihydroxy-hexadecanecarboxylic acid (J. Chem. Soc. 1963, 3505), erucyl alcohol (J. Chem. Soc. 1962, 2348), Undec-10-enoic acid [Tetrahedron 19, 905 (1963); Japanese patent application 68 04 262] are too expensive for an economical process or are not available in sufficient quantities.
- the Russian inventor's certificate 521 274 describes a process in which 13-oxa-bicyclo [10.4.0] hexadecen- [1 (12)] with butyl nitrite / NaHS0 3 is converted into the 12-keto-cyclopentadecanolide and this is followed Clemmensen is reduced to cyclopentadecanolide.
- the yield of cyclopentadecanolide in this process is only 36%, as can be seen from the examples.
- the reaction time of 90 hours spent on the Clemmensen reduction is technically unsustainable.
- the invention is therefore based on the object of developing a process which, starting from the easily accessible 13-oxa-bicyclo [10.4.0] hexadecene [1 (12)], gives cyclopentadecanolide in high purity and avoiding complex process steps .
- the process according to the invention although it opens the macrocycle, yields much better yields than the known processes, which likewise use 13-oxa-bicyclo [10.4.0] hexadecen- [1 (12)] go out and in which the macrocycle is maintained in all reaction steps.
- cyclopentadecanolide of high purity is obtained in yields of 75 to 85% of theory, based on 13-oxa-bicyclo [10.4.0] hexadecene [1 (12)], with process steps which can be carried out without any technical effort.
- the hydrazone can be reduced according to Wolff-Kishner with sodium or a sodium alcoholate, the ketone according to Huang-Minlon with hydrazine in the presence of sodium or potassium hydroxide with simultaneous cleavage of the lactone ring to 15-hydroxypentadecanoic acid.
- the 12-oximino-cyclopentadecanolide is immediately, ie without saponifying to the ketone, reduced with an excess of hydrazine hydrate in the presence of alkali hydroxide with cleavage of the lactone ring to 15-hydroxypentadecanoic acid.
- the reducing cleavage is carried out by heating the mixture of oxime, hydrazine and alkali hydroxide in a higher-boiling organic solvent, such as ethylene or diethylene glycol, to temperatures of 150 to 200 ° C.
- the hydrazine: 12-oximinocyclopentadecanolide molar ratio should be between 1.5-3: 1.
- Hydrazine is preferably used in the form of 80% hydrazine hydrate.
- Sodium or potassium hydroxide is preferably used as the alkali hydroxide.
- the molar ratio of alkali metal hydroxide: 12-oximinocyclopentadecanolide is advantageously 3-5: 1.
- the 15-hydroxypentadecanoic acid can be cyclized by the customary processes known from the literature for the preparation of lactones from hydroxycarboxylic acids.
- the above-mentioned method by Spanagel and Carothers [J. At the. Chem. Soc. 58, 654 (1936)], in which a linear polyester is first prepared from 15-hydroxypentadecanoic acid, which is then depolymerized in the presence of a depolymerization catalyst such as magnesium chloride, magnesium oxide, lead dioxide, etc.
- reaction mixture was mixed with one liter of ice water and acidified to pH 2 with hydrochloric acid.
- the precipitated reaction product was extracted with ethyl acetate while hot. When the warm ethyl acetate solution cooled, the product crystallized again. The product is separated and dried.
- Example 4 50 g of 12-keto-cyclopentadecanolide (prepared according to Example 4) were treated with 36.6 g of 80% hydrazine hydrate and 54.7 g of potassium hydroxide in 150 ml of diethylene glycol among those in Example 3 implemented reaction conditions.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pyrane Compounds (AREA)
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2731543A DE2731543C3 (de) | 1977-07-13 | 1977-07-13 | Verfahren zur Herstellung von Cyclopentadecanolid |
DE2731543 | 1977-07-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0000476A1 EP0000476A1 (fr) | 1979-02-07 |
EP0000476B1 true EP0000476B1 (fr) | 1981-10-07 |
Family
ID=6013771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP78100237A Expired EP0000476B1 (fr) | 1977-07-13 | 1978-06-26 | Procédé de préparation de cyclopentadécanolide |
Country Status (5)
Country | Link |
---|---|
US (1) | US4187222A (fr) |
EP (1) | EP0000476B1 (fr) |
JP (1) | JPS5419989A (fr) |
DE (2) | DE2731543C3 (fr) |
IT (1) | IT1105097B (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0626291B2 (ja) * | 1985-03-15 | 1994-04-06 | 株式会社東芝 | 利得制御装置 |
DE4115182A1 (de) * | 1991-05-09 | 1992-11-12 | Haarmann & Reimer Gmbh | Neue derivate cyclischer lactone, verfahren zu ihrer herstellung und verfahren zur herstellung von 15-pentadecanolid und seinen homologen |
DE10041198B4 (de) | 2000-08-23 | 2004-01-15 | Symrise Gmbh & Co. Kg | Verfahren zur Herstellung makrocyclischer Ester |
GB2423986A (en) * | 2004-12-24 | 2006-09-13 | Givaudan Sa | Fragrance Compound |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2092031A (en) * | 1937-09-07 | Process of preparing cycijc esters | ||
US3890353A (en) * | 1969-05-29 | 1975-06-17 | Firmenich & Cie | Process for preparing lactones |
JPS5125033B2 (fr) * | 1971-08-18 | 1976-07-28 | ||
DE2410859A1 (de) * | 1974-03-07 | 1975-09-18 | Haarmann & Reimer Gmbh | Macrocyclische ketolactone |
SU521274A1 (ru) * | 1974-03-29 | 1976-07-15 | Ордена Ленина Институт Элементоорганических Соединений Ан Ссср | Способ получени циклопентадеканолида или его метильного производного |
DE2511410C2 (de) * | 1975-03-15 | 1983-10-20 | Basf Ag, 6700 Ludwigshafen | 12-Oxo-15-hydroxy-tetradecancarbonsäurelactone und Verfahren zu ihrer Herstellung |
-
1977
- 1977-07-13 DE DE2731543A patent/DE2731543C3/de not_active Expired
-
1978
- 1978-06-26 EP EP78100237A patent/EP0000476B1/fr not_active Expired
- 1978-06-26 DE DE7878100237T patent/DE2861130D1/de not_active Expired
- 1978-06-30 US US05/921,158 patent/US4187222A/en not_active Expired - Lifetime
- 1978-07-11 IT IT50241/78A patent/IT1105097B/it active
- 1978-07-12 JP JP8415678A patent/JPS5419989A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2731543A1 (de) | 1979-01-18 |
EP0000476A1 (fr) | 1979-02-07 |
DE2731543C3 (de) | 1980-07-31 |
IT7850241A0 (it) | 1978-07-11 |
IT1105097B (it) | 1985-10-28 |
DE2861130D1 (en) | 1981-12-17 |
JPS5419989A (en) | 1979-02-15 |
DE2731543B2 (de) | 1979-11-22 |
US4187222A (en) | 1980-02-05 |
JPS6121474B2 (fr) | 1986-05-27 |
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