BE507034A - - Google Patents
Info
- Publication number
- BE507034A BE507034A BE507034DA BE507034A BE 507034 A BE507034 A BE 507034A BE 507034D A BE507034D A BE 507034DA BE 507034 A BE507034 A BE 507034A
- Authority
- BE
- Belgium
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
- C07D311/42—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4
- C07D311/44—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3
- C07D311/46—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3 unsubstituted in the carbocyclic ring
- C07D311/48—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3 unsubstituted in the carbocyclic ring with two such benzopyran radicals linked together by a carbon chain
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Pyrane Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS305343X | 1950-11-13 | ||
| CH280975T | 1951-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE507034A true BE507034A (en:Method) |
Family
ID=25732045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE507034D BE507034A (en:Method) | 1950-11-13 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE507034A (en:Method) |
| CH (1) | CH305343A (en:Method) |
| FR (1) | FR74005E (en:Method) |
| GB (1) | GB707668A (en:Method) |
-
0
- BE BE507034D patent/BE507034A/xx unknown
-
1951
- 1951-10-31 CH CH305343D patent/CH305343A/de unknown
- 1951-11-08 GB GB26223/51A patent/GB707668A/en not_active Expired
- 1951-11-09 FR FR49990A patent/FR74005E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR74005E (fr) | 1961-03-08 |
| CH305343A (de) | 1955-02-15 |
| GB707668A (en) | 1954-04-21 |