CA964272A - Bis-chromones - Google Patents
Bis-chromonesInfo
- Publication number
- CA964272A CA964272A CA132,513A CA132513A CA964272A CA 964272 A CA964272 A CA 964272A CA 132513 A CA132513 A CA 132513A CA 964272 A CA964272 A CA 964272A
- Authority
- CA
- Canada
- Prior art keywords
- chromones
- bis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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 (1)
| Publication Number | Publication Date |
|---|---|
| CA964272A true CA964272A (en) | 1975-03-11 |
Family
ID=9748628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA132,513A Expired CA964272A (en) | 1971-01-22 | 1972-01-17 | Bis-chromones |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5641633B1 (sv) |
| CA (1) | CA964272A (sv) |
| CH (1) | CH546758A (sv) |
| DK (1) | DK131185B (sv) |
| GB (1) | GB1324571A (sv) |
| NL (1) | NL7200726A (sv) |
| SE (1) | SE384861B (sv) |
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/da 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/fr not_active IP Right Cessation
- 1972-01-21 SE SE69572A patent/SE384861B/sv unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH546758A (fr) | 1974-03-15 |
| DK131185C (sv) | 1975-11-10 |
| JPS5641633B1 (sv) | 1981-09-29 |
| NL7200726A (sv) | 1972-07-25 |
| DK131185B (da) | 1975-06-09 |
| GB1324571A (en) | 1973-07-25 |
| SE384861B (sv) | 1976-05-24 |
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