CH550784A - Procede de preparation de derives benzopyranniques. - Google Patents
Procede de preparation de derives benzopyranniques.Info
- Publication number
- CH550784A CH550784A CH1912771A CH1912771A CH550784A CH 550784 A CH550784 A CH 550784A CH 1912771 A CH1912771 A CH 1912771A CH 1912771 A CH1912771 A CH 1912771A CH 550784 A CH550784 A CH 550784A
- Authority
- CH
- Switzerland
- Prior art keywords
- benzopyrannic
- derivatives
- preparing
- preparing benzopyrannic
- benzopyrannic derivatives
- 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
-
- 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
- C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
- C07C45/54—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition of compounds containing doubly bound oxygen atoms, e.g. esters
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicinal Preparation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6191570 | 1970-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH550784A true CH550784A (fr) | 1974-06-28 |
Family
ID=10487627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1912771A CH550784A (fr) | 1970-12-30 | 1971-12-29 | Procede de preparation de derives benzopyranniques. |
Country Status (7)
| Country | Link |
|---|---|
| CA (1) | CA964271A (enrdf_load_stackoverflow) |
| CH (1) | CH550784A (enrdf_load_stackoverflow) |
| DE (1) | DE2163869A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2120095B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1321879A (enrdf_load_stackoverflow) |
| IL (1) | IL38310A (enrdf_load_stackoverflow) |
| NL (1) | NL7118101A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1449810A (en) * | 1972-12-05 | 1976-09-15 | Fisons Ltd | Benzo-or naphtho-dipyran-di-n-tetrazolyl- -carboxamide derivative methods for their production and compositions containing them |
-
1970
- 1970-12-30 GB GB6191570A patent/GB1321879A/en not_active Expired
-
1971
- 1971-12-07 IL IL38310A patent/IL38310A/en unknown
- 1971-12-16 CA CA130,254A patent/CA964271A/en not_active Expired
- 1971-12-22 DE DE19712163869 patent/DE2163869A1/de active Pending
- 1971-12-29 CH CH1912771A patent/CH550784A/fr not_active IP Right Cessation
- 1971-12-29 FR FR7147209A patent/FR2120095B1/fr not_active Expired
- 1971-12-30 NL NL7118101A patent/NL7118101A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2163869A1 (de) | 1972-07-20 |
| IL38310A (en) | 1975-06-25 |
| NL7118101A (enrdf_load_stackoverflow) | 1972-07-04 |
| GB1321879A (en) | 1973-07-04 |
| IL38310A0 (en) | 1972-02-29 |
| FR2120095A1 (enrdf_load_stackoverflow) | 1972-08-11 |
| FR2120095B1 (enrdf_load_stackoverflow) | 1975-06-13 |
| CA964271A (en) | 1975-03-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |