DK131185C - - Google Patents
Info
- Publication number
- DK131185C DK131185C DK25072A DK25072A DK131185C DK 131185 C DK131185 C DK 131185C DK 25072 A DK25072 A DK 25072A DK 25072 A DK25072 A DK 25072A DK 131185 C DK131185 C DK 131185C
- Authority
- DK
- Denmark
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)
- Epoxy Compounds (AREA)
- Pyridine Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB292471 | 1971-01-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK131185B DK131185B (en) | 1975-06-09 |
| DK131185C true DK131185C (en) | 1975-11-10 |
Family
ID=9748628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK25072A DK131185B (en) | 1971-01-22 | 1972-01-18 | Process for the production of bis-chromones. |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5641633B1 (en) |
| CA (1) | CA964272A (en) |
| CH (1) | CH546758A (en) |
| DK (1) | DK131185B (en) |
| GB (1) | GB1324571A (en) |
| NL (1) | NL7200726A (en) |
| SE (1) | SE384861B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1448980A (en) * | 1973-01-19 | 1976-09-08 | Fisons Ltd | Unsymmetrically substituted bis-chromones |
-
1971
- 1971-01-22 GB GB1324571D patent/GB1324571A/en not_active Expired
-
1972
- 1972-01-17 CA CA132,513A patent/CA964272A/en not_active Expired
- 1972-01-18 DK DK25072A patent/DK131185B/en unknown
- 1972-01-19 NL NL7200726A patent/NL7200726A/xx not_active Application Discontinuation
- 1972-01-21 JP JP770272A patent/JPS5641633B1/ja active Pending
- 1972-01-21 CH CH94772A patent/CH546758A/en not_active IP Right Cessation
- 1972-01-21 SE SE69572A patent/SE384861B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH546758A (en) | 1974-03-15 |
| JPS5641633B1 (en) | 1981-09-29 |
| NL7200726A (en) | 1972-07-25 |
| DK131185B (en) | 1975-06-09 |
| CA964272A (en) | 1975-03-11 |
| GB1324571A (en) | 1973-07-25 |
| SE384861B (en) | 1976-05-24 |