BE720120A - - Google Patents
Info
- Publication number
- BE720120A BE720120A BE720120DA BE720120A BE 720120 A BE720120 A BE 720120A BE 720120D A BE720120D A BE 720120DA BE 720120 A BE720120 A BE 720120A
- Authority
- BE
- Belgium
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/87—Benzo [c] furans; Hydrogenated benzo [c] furans
- C07D307/89—Benzo [c] furans; Hydrogenated benzo [c] furans with two oxygen atoms directly attached in positions 1 and 3
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C61/00—Compounds having carboxyl groups bound to carbon atoms of rings other than six-membered aromatic rings
- C07C61/16—Unsaturated compounds
- C07C61/28—Unsaturated compounds polycyclic
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB0094195 | 1967-08-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE720120A true BE720120A (en:Method) | 1969-02-28 |
Family
ID=6987407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE720120D BE720120A (en:Method) | 1967-08-29 | 1968-08-29 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3544602A (en:Method) |
| AT (1) | AT282580B (en:Method) |
| BE (1) | BE720120A (en:Method) |
| CH (1) | CH487826A (en:Method) |
| DE (1) | DE1643654A1 (en:Method) |
| FR (1) | FR1577797A (en:Method) |
| GB (1) | GB1228623A (en:Method) |
| NL (1) | NL6812196A (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2555254A1 (de) * | 1975-12-09 | 1977-06-23 | Basf Ag | Verfahren zur herstellung von bicyclo eckige klammer auf 2,2,2 eckige klammer zu oct-7-en-2,3,5,6-tetracarbonsaeure-dianhydrid |
| DE3015988A1 (de) * | 1980-04-25 | 1981-11-05 | Akzo Gmbh, 5600 Wuppertal | Verfahren zur herstellung bzw. reinigung von di- und polycarbonsaeureanhydriden |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3125585A (en) * | 1964-03-17 | Preparation of bicyclo- |
-
1967
- 1967-08-29 DE DE19671643654 patent/DE1643654A1/de not_active Withdrawn
-
1968
- 1968-08-22 CH CH1269268A patent/CH487826A/de not_active IP Right Cessation
- 1968-08-26 US US755447A patent/US3544602A/en not_active Expired - Lifetime
- 1968-08-27 FR FR1577797D patent/FR1577797A/fr not_active Expired
- 1968-08-27 NL NL6812196A patent/NL6812196A/xx unknown
- 1968-08-28 GB GB1228623D patent/GB1228623A/en not_active Expired
- 1968-08-29 BE BE720120D patent/BE720120A/xx unknown
- 1968-08-29 AT AT08397/68A patent/AT282580B/de active
Also Published As
| Publication number | Publication date |
|---|---|
| NL6812196A (en:Method) | 1969-03-04 |
| GB1228623A (en:Method) | 1971-04-15 |
| FR1577797A (en:Method) | 1969-08-08 |
| CH487826A (de) | 1970-03-31 |
| AT282580B (de) | 1970-07-10 |
| DE1643654A1 (de) | 1971-07-15 |
| US3544602A (en) | 1970-12-01 |