NL89799C - - Google Patents
Info
- Publication number
- NL89799C NL89799C NL89799DA NL89799C NL 89799 C NL89799 C NL 89799C NL 89799D A NL89799D A NL 89799DA NL 89799 C NL89799 C NL 89799C
- Authority
- NL
- Netherlands
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)
- Pyrane Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB934756A GB822181A (en) | 1956-03-26 | 1956-03-26 | Substituted coumarins and the preparation thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL89799C true NL89799C (en) |
Family
ID=9870198
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL89799D NL89799C (en) | 1956-03-26 | ||
| NL95256D NL95256C (en) | 1956-03-26 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL95256D NL95256C (en) | 1956-03-26 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE546501A (en) |
| CH (2) | CH344734A (en) |
| FR (1) | FR1164524A (en) |
| GB (1) | GB822181A (en) |
| NL (2) | NL95256C (en) |
-
0
- BE BE546501D patent/BE546501A/xx unknown
- NL NL89799D patent/NL89799C/xx active
- NL NL95256D patent/NL95256C/xx active
-
1956
- 1956-03-26 GB GB934756A patent/GB822181A/en not_active Expired
- 1956-04-05 CH CH344734D patent/CH344734A/en unknown
- 1956-04-05 CH CH346224D patent/CH346224A/en unknown
- 1956-05-03 FR FR1164524D patent/FR1164524A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH346224A (en) | 1960-05-15 |
| BE546501A (en) | |
| NL95256C (en) | |
| GB822181A (en) | 1959-10-21 |
| CH344734A (en) | 1960-02-29 |
| FR1164524A (en) | 1958-10-10 |