JPS5265273A - Novel method of preparation of benzopyran derivatives - Google Patents
Novel method of preparation of benzopyran derivativesInfo
- Publication number
- JPS5265273A JPS5265273A JP51140826A JP14082676A JPS5265273A JP S5265273 A JPS5265273 A JP S5265273A JP 51140826 A JP51140826 A JP 51140826A JP 14082676 A JP14082676 A JP 14082676A JP S5265273 A JPS5265273 A JP S5265273A
- Authority
- JP
- Japan
- Prior art keywords
- preparation
- novel method
- benzopyran derivatives
- benzopyran
- derivatives
- 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.)
- Pending
Links
- 150000001562 benzopyrans Chemical class 0.000 title 1
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)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
- Pyrane Compounds (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4832175 | 1975-11-25 | ||
| GB4832275 | 1975-11-25 | ||
| GB1473276 | 1976-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5265273A true JPS5265273A (en) | 1977-05-30 |
Family
ID=27257160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51140826A Pending JPS5265273A (en) | 1975-11-25 | 1976-11-25 | Novel method of preparation of benzopyran derivatives |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5265273A (cs) |
| CA (1) | CA1076592A (cs) |
| CH (1) | CH618435A5 (cs) |
| DK (1) | DK530076A (cs) |
| ES (1) | ES453593A1 (cs) |
| FI (1) | FI763347A7 (cs) |
| NO (1) | NO146498C (cs) |
| PT (1) | PT65881B (cs) |
| SE (1) | SE425313B (cs) |
-
1976
- 1976-10-28 CA CA264,396A patent/CA1076592A/en not_active Expired
- 1976-11-11 NO NO763856A patent/NO146498C/no unknown
- 1976-11-22 FI FI763347A patent/FI763347A7/fi not_active Application Discontinuation
- 1976-11-24 CH CH1479976A patent/CH618435A5/fr not_active IP Right Cessation
- 1976-11-24 SE SE7613152A patent/SE425313B/xx unknown
- 1976-11-24 DK DK530076A patent/DK530076A/da not_active Application Discontinuation
- 1976-11-24 ES ES453593A patent/ES453593A1/es not_active Expired
- 1976-11-24 PT PT65881A patent/PT65881B/pt unknown
- 1976-11-25 JP JP51140826A patent/JPS5265273A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ES453593A1 (es) | 1977-12-01 |
| NO146498C (no) | 1982-10-13 |
| SE7613152L (sv) | 1977-05-26 |
| CA1076592A (en) | 1980-04-29 |
| PT65881A (fr) | 1976-12-01 |
| PT65881B (fr) | 1978-10-12 |
| SE425313B (sv) | 1982-09-20 |
| FI763347A7 (cs) | 1977-05-26 |
| NO763856L (cs) | 1977-05-26 |
| CH618435A5 (en) | 1980-07-31 |
| NO146498B (no) | 1982-07-05 |
| DK530076A (da) | 1977-05-26 |
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