CH619700A5 - - Google Patents
Download PDFInfo
- Publication number
- CH619700A5 CH619700A5 CH281776A CH281776A CH619700A5 CH 619700 A5 CH619700 A5 CH 619700A5 CH 281776 A CH281776 A CH 281776A CH 281776 A CH281776 A CH 281776A CH 619700 A5 CH619700 A5 CH 619700A5
- Authority
- CH
- Switzerland
- Prior art keywords
- pyran
- oxo
- hydroxy
- epoxy
- dihydro
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
- C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
- C07D493/04—Ortho-condensed systems
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L27/00—Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
- A23L27/20—Synthetic spices, flavouring agents or condiments
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50087940A JPS5212166A (en) | 1975-07-17 | 1975-07-17 | Process for preparation of 4-pyron derivatives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH619700A5 true CH619700A5 (es) | 1980-10-15 |
Family
ID=13928886
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH281676A CH617200A5 (es) | 1975-07-17 | 1976-03-05 | |
| CH281776A CH619700A5 (es) | 1975-07-17 | 1976-03-05 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH281676A CH617200A5 (es) | 1975-07-17 | 1976-03-05 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4059595A (es) |
| JP (1) | JPS5212166A (es) |
| BE (2) | BE844194A (es) |
| CH (2) | CH617200A5 (es) |
| DE (2) | DE2608932C2 (es) |
| FR (2) | FR2318161A1 (es) |
| GB (2) | GB1498365A (es) |
| IT (2) | IT1063916B (es) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4342697A (en) * | 1975-08-28 | 1982-08-03 | Pfizer Inc. | Preparation of gamma-pyrones |
| IE42789B1 (en) * | 1975-08-28 | 1980-10-22 | Pfizer | Preparation of gamma-pyrones |
| JPS532468A (en) * | 1976-06-15 | 1978-01-11 | Otsuka Chem Co Ltd | 2,2-bis(3,4-epoxy-5-oxotetrahydropyrane)-ethers and method of preparing the same |
| CA1095921A (en) * | 1976-08-02 | 1981-02-17 | Thomas M. Brennan | Preparation of gamma-pyrones |
| JPS5353613U (es) * | 1976-10-11 | 1978-05-09 | ||
| US4390709A (en) * | 1976-11-11 | 1983-06-28 | Pfizer Inc. | Preparation of gamma-pyrones |
| US4191693A (en) * | 1976-11-12 | 1980-03-04 | Pfizer, Inc. | Preparation of gamma-pyrones from 3-substituted furans |
| JPS5481273A (en) * | 1977-12-12 | 1979-06-28 | Shin Etsu Chem Co Ltd | Preparation of pyranone halide |
| US4451661A (en) * | 1982-04-26 | 1984-05-29 | Pfizer Inc. | Preparation of gamma-pyrone intermediates |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3159652A (en) * | 1962-06-13 | 1964-12-01 | Pfizer & Co C | Preparation of gamma-pyrones |
| US3476778A (en) * | 1966-05-16 | 1969-11-04 | Monsanto Co | Gamma-pyrone synthesis |
| US3491122A (en) * | 1966-09-14 | 1970-01-20 | Monsanto Co | Synthesis of 4-pyrones |
| JPS5145565B1 (es) * | 1968-10-12 | 1976-12-04 |
-
1975
- 1975-07-17 JP JP50087940A patent/JPS5212166A/ja active Granted
-
1976
- 1976-02-25 GB GB7539/76A patent/GB1498365A/en not_active Expired
- 1976-02-26 US US05/661,823 patent/US4059595A/en not_active Expired - Lifetime
- 1976-02-26 GB GB7540/76A patent/GB1496992A/en not_active Expired
- 1976-03-04 DE DE2608932A patent/DE2608932C2/de not_active Expired
- 1976-03-05 IT IT20921/76A patent/IT1063916B/it active
- 1976-03-05 FR FR7606288A patent/FR2318161A1/fr active Granted
- 1976-03-05 CH CH281676A patent/CH617200A5/de not_active IP Right Cessation
- 1976-03-05 CH CH281776A patent/CH619700A5/de not_active IP Right Cessation
- 1976-03-09 IT IT21011/76A patent/IT1063914B/it active
- 1976-03-10 FR FR7606779A patent/FR2317921A1/fr active Granted
- 1976-03-10 DE DE2609888A patent/DE2609888C3/de not_active Expired
- 1976-07-16 BE BE2055187A patent/BE844194A/xx not_active IP Right Cessation
- 1976-07-16 BE BE2055186A patent/BE844193A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2609888C3 (de) | 1979-05-10 |
| BE844193A (fr) | 1976-11-16 |
| IT1063914B (it) | 1985-02-18 |
| GB1496992A (en) | 1978-01-05 |
| IT1063916B (it) | 1985-02-18 |
| US4059595A (en) | 1977-11-22 |
| CH617200A5 (es) | 1980-05-14 |
| DE2608932C2 (de) | 1982-07-08 |
| JPS5412465B2 (es) | 1979-05-23 |
| DE2609888A1 (de) | 1977-01-20 |
| FR2317921B1 (es) | 1978-09-22 |
| JPS5212166A (en) | 1977-01-29 |
| DE2608932A1 (de) | 1977-01-20 |
| BE844194A (fr) | 1976-11-16 |
| FR2317921A1 (fr) | 1977-02-11 |
| GB1498365A (en) | 1978-01-18 |
| DE2609888B2 (de) | 1978-09-07 |
| FR2318161A1 (fr) | 1977-02-11 |
| FR2318161B1 (es) | 1978-08-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |