BE720421A - - Google Patents
Info
- Publication number
- BE720421A BE720421A BE720421DA BE720421A BE 720421 A BE720421 A BE 720421A BE 720421D A BE720421D A BE 720421DA BE 720421 A BE720421 A BE 720421A
- Authority
- BE
- Belgium
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
- C07D311/78—Ring systems having three or more relevant rings
- C07D311/80—Dibenzopyrans; Hydrogenated dibenzopyrans
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1330367A CH492698A (de) | 1967-09-21 | 1967-09-21 | Verfahren zur Herstellung von tricyclischen Verbindungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE720421A true BE720421A (de) | 1969-03-05 |
Family
ID=4391232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE720421D BE720421A (de) | 1967-09-21 | 1968-09-05 |
Country Status (10)
| Country | Link |
|---|---|
| AT (1) | AT278781B (de) |
| BE (1) | BE720421A (de) |
| CH (1) | CH492698A (de) |
| DE (1) | DE1793346A1 (de) |
| DK (1) | DK125851B (de) |
| ES (1) | ES358360A1 (de) |
| FR (1) | FR1591607A (de) |
| GB (1) | GB1181767A (de) |
| NL (1) | NL6813036A (de) |
| SE (1) | SE355362B (de) |
-
1967
- 1967-09-21 CH CH1330367A patent/CH492698A/de not_active IP Right Cessation
-
1968
- 1968-09-04 DE DE19681793346 patent/DE1793346A1/de active Pending
- 1968-09-05 BE BE720421D patent/BE720421A/xx unknown
- 1968-09-06 FR FR1591607D patent/FR1591607A/fr not_active Expired
- 1968-09-11 DK DK435668A patent/DK125851B/da unknown
- 1968-09-12 NL NL6813036A patent/NL6813036A/xx unknown
- 1968-09-19 GB GB4452668A patent/GB1181767A/en not_active Expired
- 1968-09-20 SE SE1275568A patent/SE355362B/xx unknown
- 1968-09-20 AT AT920768A patent/AT278781B/de active
- 1968-09-20 ES ES358360A patent/ES358360A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1591607A (de) | 1970-05-04 |
| ES358360A1 (es) | 1970-10-16 |
| AT278781B (de) | 1970-02-10 |
| CH492698A (de) | 1970-06-30 |
| SE355362B (de) | 1973-04-16 |
| GB1181767A (en) | 1970-02-18 |
| DE1793346A1 (de) | 1972-01-13 |
| NL6813036A (de) | 1969-03-25 |
| DK125851B (da) | 1973-05-14 |