BE468946A - - Google Patents
Info
- Publication number
- BE468946A BE468946A BE468946DA BE468946A BE 468946 A BE468946 A BE 468946A BE 468946D A BE468946D A BE 468946DA BE 468946 A BE468946 A BE 468946A
- 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)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE260200X | 1944-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE468946A true BE468946A (bg) |
Family
ID=5967836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE468946D BE468946A (bg) | 1944-03-18 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2482510A (bg) |
| BE (1) | BE468946A (bg) |
| CH (1) | CH260200A (bg) |
| FR (1) | FR915642A (bg) |
| GB (1) | GB621820A (bg) |
| NL (1) | NL60984C (bg) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2810730A (en) * | 1948-12-30 | 1957-10-22 | Fucik Karel | Process for making esters of bis(4-hydroxycoumarin-3-yl) acetic acid |
| BE496764A (bg) * | 1950-06-03 | |||
| CS159456B1 (bg) * | 1972-04-12 | 1975-01-31 |
-
0
- BE BE468946D patent/BE468946A/xx unknown
- NL NL60984D patent/NL60984C/xx active
-
1944
- 1944-09-30 CH CH260200D patent/CH260200A/de unknown
-
1945
- 1945-10-09 FR FR915642D patent/FR915642A/fr not_active Expired
-
1946
- 1946-11-06 GB GB33022/46A patent/GB621820A/en not_active Expired
-
1947
- 1947-02-14 US US728714A patent/US2482510A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR915642A (fr) | 1946-11-13 |
| CH260200A (de) | 1949-02-28 |
| US2482510A (en) | 1949-09-20 |
| GB621820A (en) | 1949-04-20 |
| NL60984C (bg) |