SE400079B - Forfarande for framstellning av bensopyran -2-karboxylsyraderivat - Google Patents
Forfarande for framstellning av bensopyran -2-karboxylsyraderivatInfo
- Publication number
- SE400079B SE400079B SE7312037A SE7312037A SE400079B SE 400079 B SE400079 B SE 400079B SE 7312037 A SE7312037 A SE 7312037A SE 7312037 A SE7312037 A SE 7312037A SE 400079 B SE400079 B SE 400079B
- Authority
- SE
- Sweden
- Prior art keywords
- bensopyran
- procedure
- preparation
- carboxylic acid
- acid derivatives
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/22—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4
- C07D311/24—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4 with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Pyrane Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4107172 | 1972-09-05 | ||
| GB191973A GB1439584A (en) | 1972-09-05 | 1973-01-13 | Preparation of benzopyran derivatives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE400079B true SE400079B (sv) | 1978-03-13 |
Family
ID=26237070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7312037A SE400079B (sv) | 1972-09-05 | 1973-09-04 | Forfarande for framstellning av bensopyran -2-karboxylsyraderivat |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5753355B2 (fr) |
| CA (1) | CA1018986A (fr) |
| CH (1) | CH582687A5 (fr) |
| GB (1) | GB1439584A (fr) |
| SE (1) | SE400079B (fr) |
-
1973
- 1973-01-13 GB GB191973A patent/GB1439584A/en not_active Expired
- 1973-09-04 CA CA180,207A patent/CA1018986A/fr not_active Expired
- 1973-09-04 CH CH1268273A patent/CH582687A5/xx not_active IP Right Cessation
- 1973-09-04 SE SE7312037A patent/SE400079B/xx unknown
- 1973-09-05 JP JP48099370A patent/JPS5753355B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4992071A (fr) | 1974-09-03 |
| GB1439584A (en) | 1976-06-16 |
| JPS5753355B2 (fr) | 1982-11-12 |
| CA1018986A (fr) | 1977-10-11 |
| CH582687A5 (fr) | 1976-12-15 |
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