FR2371411A1 - Procede de preparation de la 2-methyl-2-heptene-6-one - Google Patents
Procede de preparation de la 2-methyl-2-heptene-6-oneInfo
- Publication number
- FR2371411A1 FR2371411A1 FR7734688A FR7734688A FR2371411A1 FR 2371411 A1 FR2371411 A1 FR 2371411A1 FR 7734688 A FR7734688 A FR 7734688A FR 7734688 A FR7734688 A FR 7734688A FR 2371411 A1 FR2371411 A1 FR 2371411A1
- Authority
- FR
- France
- Prior art keywords
- methyl
- heptene
- hepten
- preparation process
- vitamin
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
- C07C45/673—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by change of size of the carbon skeleton
- C07C45/676—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by change of size of the carbon skeleton by elimination of carboxyl groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Fats And Perfumes (AREA)
Abstract
On prépare la 2-méthyl-2-heptène-6-one en faisant réagir un acétylacétate d'alkyle sur le 2-méthyl-3-butène-2-ol à chaud et en présence d'un composé organique de l'aluminium. On fait réagir le méthylbuténol et l'ester acétylacétique entre 140 et 180 degrés C dans un rapport moléculaire allant de 0,8/1 à 2,0/1, de telle manière que la concentration d'ester acétylacétique dans le mélange réactionnel ne dépasse pas 15 % en poids pendant plus de deux heures. La 2-méthyl-2-heptène-6-one obtenue est un produit intermédiaire intéressant pour la synthèse de parfums de vitamines, notamment de la vitamine A.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762652863 DE2652863B1 (de) | 1976-11-20 | 1976-11-20 | Verfahren zur Herstellung von 2-Methyl-2-hepten-6-on |
DE19772729975 DE2729975C2 (de) | 1977-07-02 | 1977-07-02 | Verfahren zur Herstellung von 2-Methyl-2-hepten-6-on |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2371411A1 true FR2371411A1 (fr) | 1978-06-16 |
FR2371411B1 FR2371411B1 (fr) | 1982-08-13 |
Family
ID=25771167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7734688A Granted FR2371411A1 (fr) | 1976-11-20 | 1977-11-18 | Procede de preparation de la 2-methyl-2-heptene-6-one |
Country Status (7)
Country | Link |
---|---|
US (1) | US4173588A (fr) |
JP (1) | JPS5365813A (fr) |
CH (1) | CH634287A5 (fr) |
FR (1) | FR2371411A1 (fr) |
GB (1) | GB1589359A (fr) |
IT (1) | IT1089011B (fr) |
NL (1) | NL7712353A (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0022955A1 (fr) * | 1979-07-18 | 1981-01-28 | BASF Aktiengesellschaft | Procédé pour la préparation de cétones supérieures non saturées |
EP0983988A1 (fr) * | 1998-09-07 | 2000-03-08 | Basf Aktiengesellschaft | Procédé continu pour la préparation de cétones insaturées |
EP1000922A1 (fr) * | 1998-11-16 | 2000-05-17 | Basf Aktiengesellschaft | Procédé pour la préparation de cétones supérieures non saturées |
EP0909750B1 (fr) * | 1997-10-17 | 2002-09-18 | Basf Aktiengesellschaft | Procédé pour la préparation de cétones gamma, delta-insaturées par la réaction Caroll, catalyseurs pour ce procédé et leur préparation |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0248440Y2 (fr) * | 1988-02-24 | 1990-12-19 | ||
DE19853908A1 (de) | 1998-12-07 | 2000-06-08 | Basf Ag | Verfahren zur Herstellung von ungesättigten Ketonen |
DE10123066A1 (de) * | 2001-05-11 | 2002-11-14 | Basf Ag | Verfahren zur Herstellung von höheren alpha,beta-ungesättigten Alkoholen |
CN102503790A (zh) * | 2011-10-11 | 2012-06-20 | 上海博鹤企业发展有限公司 | 一种生产甲基庚烯酮的方法 |
CN104478679B (zh) * | 2014-11-21 | 2016-08-24 | 山东新和成药业有限公司 | γ,δ-高级不饱和酮的制备工艺及提纯方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1162042A (fr) * | 1955-12-10 | 1958-09-08 | Basf Ag | Procédé pour la production de cétones non saturées ramifiées |
DE1068696B (de) * | 1959-11-12 | Badische Anilin- £x Soda-Fabrik Aktiengesellschaft, Ludwigshafen/Rhein | Verfahren zur Herstellung von in d-Stellung verzweigten, /, ö-olefindsch-ungesättigten Ketonen | |
FR1250702A (fr) * | 1959-02-20 | 1961-01-13 | Distillers Co Yeast Ltd | Procédé de production de cétones non saturées |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3101375A (en) * | 1963-08-20 | Production of unsaturated ketones | ||
US2795617A (en) * | 1957-06-11 | |||
US3023246A (en) * | 1962-02-27 | Production of branched unsaturated | ||
DE1182651B (de) * | 1961-03-11 | 1964-12-03 | Basf Ag | Verfahren zur Herstellung von AEthern mit besonderen Riechstoffeigenschaften |
DE1286018B (de) * | 1967-02-04 | 1969-01-02 | Basf Ag | Verfahren zur Herstellung von 6, 10-Dimethyl-undecatrien-(3, 5, 10)-on-(2) |
JPS5249444B2 (fr) * | 1973-06-26 | 1977-12-17 |
-
1977
- 1977-10-31 IT IT29226/77A patent/IT1089011B/it active
- 1977-11-03 US US05/848,211 patent/US4173588A/en not_active Expired - Lifetime
- 1977-11-09 NL NL7712353A patent/NL7712353A/xx not_active Application Discontinuation
- 1977-11-17 CH CH1408177A patent/CH634287A5/de not_active IP Right Cessation
- 1977-11-18 GB GB48069/77A patent/GB1589359A/en not_active Expired
- 1977-11-18 FR FR7734688A patent/FR2371411A1/fr active Granted
- 1977-11-21 JP JP13900977A patent/JPS5365813A/ja active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1068696B (de) * | 1959-11-12 | Badische Anilin- £x Soda-Fabrik Aktiengesellschaft, Ludwigshafen/Rhein | Verfahren zur Herstellung von in d-Stellung verzweigten, /, ö-olefindsch-ungesättigten Ketonen | |
FR1162042A (fr) * | 1955-12-10 | 1958-09-08 | Basf Ag | Procédé pour la production de cétones non saturées ramifiées |
FR1250702A (fr) * | 1959-02-20 | 1961-01-13 | Distillers Co Yeast Ltd | Procédé de production de cétones non saturées |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0022955A1 (fr) * | 1979-07-18 | 1981-01-28 | BASF Aktiengesellschaft | Procédé pour la préparation de cétones supérieures non saturées |
EP0909750B1 (fr) * | 1997-10-17 | 2002-09-18 | Basf Aktiengesellschaft | Procédé pour la préparation de cétones gamma, delta-insaturées par la réaction Caroll, catalyseurs pour ce procédé et leur préparation |
EP0983988A1 (fr) * | 1998-09-07 | 2000-03-08 | Basf Aktiengesellschaft | Procédé continu pour la préparation de cétones insaturées |
EP1000922A1 (fr) * | 1998-11-16 | 2000-05-17 | Basf Aktiengesellschaft | Procédé pour la préparation de cétones supérieures non saturées |
US6300524B1 (en) | 1998-11-16 | 2001-10-09 | Basf Aktiengesellschaft | Process for preparing higher unsaturated ketones |
Also Published As
Publication number | Publication date |
---|---|
FR2371411B1 (fr) | 1982-08-13 |
US4173588A (en) | 1979-11-06 |
CH634287A5 (de) | 1983-01-31 |
IT1089011B (it) | 1985-06-10 |
JPS5365813A (en) | 1978-06-12 |
NL7712353A (nl) | 1978-05-23 |
GB1589359A (en) | 1981-05-13 |
JPS622568B2 (fr) | 1987-01-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |