FR2413350A1 - Procede pour l'ouverture des cycles pyranniques - Google Patents
Procede pour l'ouverture des cycles pyranniquesInfo
- Publication number
- FR2413350A1 FR2413350A1 FR7834655A FR7834655A FR2413350A1 FR 2413350 A1 FR2413350 A1 FR 2413350A1 FR 7834655 A FR7834655 A FR 7834655A FR 7834655 A FR7834655 A FR 7834655A FR 2413350 A1 FR2413350 A1 FR 2413350A1
- Authority
- FR
- France
- Prior art keywords
- pyrannic
- opening
- cycles
- procedure
- pyranne
- 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
- C07C45/56—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds
- C07C45/57—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds with oxygen as the only heteroatom
- C07C45/60—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds with oxygen as the only heteroatom in six-membered 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
PROCEDE POUR L'OUVERTURE DES CYCLES PYRANNIQUES. CE PROCEDE CHIMIQUE CONSISTE A OUVRIR LE CYCLE PYRANNIQUE DES COMPOSES, TELS QUE LE 2, 6,6-TRIMETHYL-5,6-DIHYDRO-4H-PYRANNE EN FAISANT REAGIR LES DERIVES 4H-PYRANNE CONCERNES AVEC DE L'EAU ET UN CATALYSEUR CONTENANT DE L'HALOGENE OU DONNANT DE L'HALOGENE A UNE TEMPERATURE RELATIVEMENT BASSE D'ENVIRON 50C A 130C. UTILISATION DE CE PROCEDE POUR LA PREPARATION SELECTIVE D'A ET B-METHYL-HEPTENONE ET DE METHYL-HEPTANOLONE PAR EXEMPLE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT19008/78A IT1092952B (it) | 1978-01-03 | 1978-01-03 | Metodo per l'apertura di anelli piranici |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2413350A1 true FR2413350A1 (fr) | 1979-07-27 |
FR2413350B1 FR2413350B1 (fr) | 1983-08-26 |
Family
ID=11153804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7834655A Granted FR2413350A1 (fr) | 1978-01-03 | 1978-12-08 | Procede pour l'ouverture des cycles pyranniques |
Country Status (15)
Country | Link |
---|---|
US (1) | US4226810A (fr) |
JP (1) | JPS5495506A (fr) |
BE (1) | BE872723A (fr) |
CA (1) | CA1102350A (fr) |
CS (1) | CS209508B2 (fr) |
DE (1) | DE2852587C3 (fr) |
DK (1) | DK528878A (fr) |
ES (1) | ES476841A1 (fr) |
FR (1) | FR2413350A1 (fr) |
GB (1) | GB2013176B (fr) |
IT (1) | IT1092952B (fr) |
NL (1) | NL7811919A (fr) |
NO (1) | NO147832C (fr) |
SE (1) | SE7900024L (fr) |
ZA (1) | ZA7923B (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4898988A (en) * | 1989-03-13 | 1990-02-06 | W. R. Grace & Co.-Conn. | Process for the preparation of β-hydroxyketones |
CN110845312A (zh) * | 2019-11-27 | 2020-02-28 | 万华化学集团股份有限公司 | 一种制备甲基庚烯酮的方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3597484A (en) * | 1967-03-06 | 1971-08-03 | Basf Ag | Production of olefinically unsaturated oxo compounds |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3009959A (en) * | 1961-11-21 | Figure i | ||
US3255258A (en) * | 1966-06-07 | Isomerization of alkylene oxides | ||
US2624764A (en) * | 1949-12-27 | 1953-01-06 | Monsanto Chemicals | Preparation of keto aldehydes |
US3686321A (en) * | 1971-01-18 | 1972-08-22 | Basf Ag | Production of 2-methylhept-1-en-6-one |
US3864403A (en) * | 1973-08-10 | 1975-02-04 | Hoffmann La Roche | Preparation of 6-methyl-5-hepten-2-one |
-
1978
- 1978-01-03 IT IT19008/78A patent/IT1092952B/it active
- 1978-11-27 DK DK528878A patent/DK528878A/da not_active Application Discontinuation
- 1978-11-28 US US05/964,137 patent/US4226810A/en not_active Expired - Lifetime
- 1978-11-28 NO NO783994A patent/NO147832C/no unknown
- 1978-12-01 JP JP14797278A patent/JPS5495506A/ja active Pending
- 1978-12-04 CA CA317,312A patent/CA1102350A/fr not_active Expired
- 1978-12-04 GB GB7847054A patent/GB2013176B/en not_active Expired
- 1978-12-05 DE DE2852587A patent/DE2852587C3/de not_active Expired
- 1978-12-06 NL NL7811919A patent/NL7811919A/xx not_active Application Discontinuation
- 1978-12-08 FR FR7834655A patent/FR2413350A1/fr active Granted
- 1978-12-12 CS CS788244A patent/CS209508B2/cs unknown
- 1978-12-13 BE BE192284A patent/BE872723A/fr not_active IP Right Cessation
- 1978-12-29 ES ES476841A patent/ES476841A1/es not_active Expired
-
1979
- 1979-01-02 SE SE7900024A patent/SE7900024L/xx unknown
- 1979-01-03 ZA ZA7923A patent/ZA7923B/xx unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3597484A (en) * | 1967-03-06 | 1971-08-03 | Basf Ag | Production of olefinically unsaturated oxo compounds |
Also Published As
Publication number | Publication date |
---|---|
BE872723A (fr) | 1979-06-13 |
FR2413350B1 (fr) | 1983-08-26 |
US4226810A (en) | 1980-10-07 |
IT1092952B (it) | 1985-07-12 |
NO783994L (no) | 1979-07-04 |
ES476841A1 (es) | 1979-06-16 |
DE2852587C3 (de) | 1981-10-29 |
CS209508B2 (en) | 1981-12-31 |
NO147832B (no) | 1983-03-14 |
GB2013176A (en) | 1979-08-08 |
DE2852587B2 (de) | 1980-12-18 |
DE2852587A1 (de) | 1979-07-05 |
SE7900024L (sv) | 1979-07-04 |
ZA7923B (en) | 1980-01-30 |
GB2013176B (en) | 1982-10-06 |
JPS5495506A (en) | 1979-07-28 |
NL7811919A (nl) | 1979-07-05 |
NO147832C (no) | 1983-06-29 |
CA1102350A (fr) | 1981-06-02 |
IT7819008A0 (it) | 1978-01-03 |
DK528878A (da) | 1979-07-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |