AT308108B - Process for the preparation of new substituted benzopyrans - Google Patents
Process for the preparation of new substituted benzopyransInfo
- Publication number
- AT308108B AT308108B AT787271A AT787271A AT308108B AT 308108 B AT308108 B AT 308108B AT 787271 A AT787271 A AT 787271A AT 787271 A AT787271 A AT 787271A AT 308108 B AT308108 B AT 308108B
- Authority
- AT
- Austria
- Prior art keywords
- preparation
- new substituted
- substituted benzopyrans
- benzopyrans
- new
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/04—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7221770A | 1970-09-14 | 1970-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT308108B true AT308108B (en) | 1973-06-25 |
Family
ID=22106286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT787271A AT308108B (en) | 1970-09-14 | 1971-09-10 | Process for the preparation of new substituted benzopyrans |
Country Status (14)
| Country | Link |
|---|---|
| AT (1) | AT308108B (en) |
| BE (1) | BE772492A (en) |
| CA (1) | CA965421A (en) |
| CH (1) | CH559209A5 (en) |
| DE (1) | DE2145320A1 (en) |
| DK (1) | DK135994B (en) |
| ES (1) | ES394980A1 (en) |
| FR (1) | FR2106490B1 (en) |
| GB (1) | GB1360009A (en) |
| IE (1) | IE35636B1 (en) |
| NL (1) | NL7112521A (en) |
| NO (1) | NO134743C (en) |
| SE (1) | SE372943B (en) |
| ZA (1) | ZA716039B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3960880A (en) * | 1974-03-26 | 1976-06-01 | Beecham Group Limited | Tetrahydropyrid-4-yl-chroman-5-ol derivatives |
| JPS4995978A (en) * | 1973-01-24 | 1974-09-11 | ||
| GB1417745A (en) * | 1973-07-07 | 1975-12-17 | Beecham Group Ltd | Chromene compounds |
-
1971
- 1971-09-09 ZA ZA716039A patent/ZA716039B/en unknown
- 1971-09-09 GB GB4206671A patent/GB1360009A/en not_active Expired
- 1971-09-10 DK DK446771AA patent/DK135994B/en unknown
- 1971-09-10 SE SE7111539A patent/SE372943B/xx unknown
- 1971-09-10 IE IE1154/71A patent/IE35636B1/en unknown
- 1971-09-10 ES ES394980A patent/ES394980A1/en not_active Expired
- 1971-09-10 CH CH1332671A patent/CH559209A5/xx not_active IP Right Cessation
- 1971-09-10 DE DE19712145320 patent/DE2145320A1/en active Pending
- 1971-09-10 NL NL7112521A patent/NL7112521A/xx not_active Application Discontinuation
- 1971-09-10 CA CA122,575A patent/CA965421A/en not_active Expired
- 1971-09-10 NO NO3374/71A patent/NO134743C/no unknown
- 1971-09-10 FR FR7132675A patent/FR2106490B1/fr not_active Expired
- 1971-09-10 BE BE772492A patent/BE772492A/en unknown
- 1971-09-10 AT AT787271A patent/AT308108B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ZA716039B (en) | 1972-07-26 |
| CH559209A5 (en) | 1975-02-28 |
| NO134743C (en) | 1976-12-08 |
| FR2106490A1 (en) | 1972-05-05 |
| BE772492A (en) | 1972-03-10 |
| ES394980A1 (en) | 1974-12-01 |
| AU3336571A (en) | 1973-03-15 |
| DK135994B (en) | 1977-07-25 |
| NO134743B (en) | 1976-08-30 |
| SE372943B (en) | 1975-01-20 |
| FR2106490B1 (en) | 1975-04-18 |
| GB1360009A (en) | 1974-07-17 |
| DK135994C (en) | 1977-12-27 |
| NL7112521A (en) | 1972-03-16 |
| IE35636L (en) | 1972-03-14 |
| CA965421A (en) | 1975-04-01 |
| IE35636B1 (en) | 1976-04-14 |
| DE2145320A1 (en) | 1972-03-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ELJ | Ceased due to non-payment of the annual fee |