BE470996A - - Google Patents
Info
- Publication number
- BE470996A BE470996A BE470996DA BE470996A BE 470996 A BE470996 A BE 470996A BE 470996D A BE470996D A BE 470996DA BE 470996 A BE470996 A BE 470996A
- 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
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/42—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4
- C07D311/44—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3
- C07D311/46—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3 unsubstituted in the carbocyclic ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyrane Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB385146A GB605999A (en) | 1946-02-07 | 1946-02-07 | Process for the production of coumarins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE470996A true BE470996A (xx) |
Family
ID=9766120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE470996D BE470996A (xx) | 1946-02-07 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE470996A (xx) |
| DE (1) | DE806458C (xx) |
| FR (1) | FR941418A (xx) |
| GB (1) | GB605999A (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE960813C (de) * | 1951-06-20 | 1957-03-28 | Distillers Co Yeast Ltd | Verfahren zur Herstellung von ungesaettigten ª†- und ª€-Laktonen |
-
0
- BE BE470996D patent/BE470996A/xx unknown
-
1946
- 1946-02-07 GB GB385146A patent/GB605999A/en not_active Expired
-
1947
- 1947-02-06 FR FR941418D patent/FR941418A/fr not_active Expired
-
1949
- 1949-01-01 DE DEP29759A patent/DE806458C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB605999A (en) | 1948-08-04 |
| FR941418A (fr) | 1949-01-11 |
| DE806458C (de) | 1951-06-14 |