SE383744B - PROCEDURE FOR THE PRODUCTION OF CHROMON-2-CARBONIC ACIDS - Google Patents
PROCEDURE FOR THE PRODUCTION OF CHROMON-2-CARBONIC ACIDSInfo
- Publication number
- SE383744B SE383744B SE69672A SE69672A SE383744B SE 383744 B SE383744 B SE 383744B SE 69672 A SE69672 A SE 69672A SE 69672 A SE69672 A SE 69672A SE 383744 B SE383744 B SE 383744B
- Authority
- SE
- Sweden
- Prior art keywords
- chromon
- procedure
- production
- carbonic acids
- carbonic
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D407/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00
- C07D407/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing two hetero rings
- C07D407/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/76—Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
-
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB292571A GB1374981A (en) | 1971-01-22 | 1971-01-22 | Process for the production of bis-chromone-2-carboxylic acids and intermediates therefor |
GB876771 | 1971-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
SE383744B true SE383744B (en) | 1976-03-29 |
Family
ID=26237854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE69672A SE383744B (en) | 1971-01-22 | 1972-01-21 | PROCEDURE FOR THE PRODUCTION OF CHROMON-2-CARBONIC ACIDS |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5710108B1 (en) |
CA (1) | CA994787A (en) |
CH (1) | CH540248A (en) |
GB (1) | GB1374981A (en) |
NL (1) | NL7200727A (en) |
SE (1) | SE383744B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59159004U (en) * | 1983-04-11 | 1984-10-25 | デイエツクスアンテナ株式会社 | antenna element |
WO2005063732A1 (en) * | 2003-12-23 | 2005-07-14 | Microbia, Inc. | Compounds and methods for the treatment of asthma |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4826014A (en) * | 1971-08-05 | 1973-04-05 |
-
1971
- 1971-01-22 GB GB292571A patent/GB1374981A/en not_active Expired
-
1972
- 1972-01-17 CA CA132,514A patent/CA994787A/en not_active Expired
- 1972-01-19 NL NL7200727A patent/NL7200727A/xx not_active Application Discontinuation
- 1972-01-21 CH CH94872A patent/CH540248A/en not_active IP Right Cessation
- 1972-01-21 JP JP770372A patent/JPS5710108B1/ja active Pending
- 1972-01-21 SE SE69672A patent/SE383744B/en unknown
Also Published As
Publication number | Publication date |
---|---|
JPS5710108B1 (en) | 1982-02-24 |
CH540248A (en) | 1973-08-15 |
GB1374981A (en) | 1974-11-20 |
CA994787A (en) | 1976-08-10 |
NL7200727A (en) | 1972-07-25 |
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