BE535749A - - Google Patents
Info
- Publication number
- BE535749A BE535749A BE535749DA BE535749A BE 535749 A BE535749 A BE 535749A BE 535749D A BE535749D A BE 535749DA BE 535749 A BE535749 A BE 535749A
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS335692X | 1954-02-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE535749A true BE535749A (xx) |
Family
ID=5452248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE535749D BE535749A (xx) | 1954-02-08 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2804465A (xx) |
| BE (1) | BE535749A (xx) |
| CH (1) | CH335692A (xx) |
| DE (1) | DE1018876B (xx) |
| FR (1) | FR1161332A (xx) |
| GB (1) | GB773824A (xx) |
| NL (1) | NL88205C (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL281975A (xx) * | 1961-08-12 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH263422A (de) * | 1945-11-06 | 1949-08-31 | Spofa Spojene Farmaceuticke Z | Verfahren zur Herstellung eines Derivates der Benzotetronsäure. |
-
0
- BE BE535749D patent/BE535749A/xx unknown
- NL NL88205D patent/NL88205C/xx active
-
1955
- 1955-01-24 DE DES42416A patent/DE1018876B/de active Pending
- 1955-02-03 CH CH335692D patent/CH335692A/de unknown
- 1955-02-05 FR FR1161332D patent/FR1161332A/fr not_active Expired
- 1955-02-07 US US486728A patent/US2804465A/en not_active Expired - Lifetime
- 1955-02-08 GB GB3674/55A patent/GB773824A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1161332A (fr) | 1958-08-26 |
| NL88205C (xx) | |
| GB773824A (en) | 1957-05-01 |
| DE1018876B (de) | 1957-11-07 |
| CH335692A (de) | 1959-01-31 |
| US2804465A (en) | 1957-08-27 |