NL83336C - - Google Patents
Info
- Publication number
- NL83336C NL83336C NL83336DA NL83336C NL 83336 C NL83336 C NL 83336C NL 83336D A NL83336D A NL 83336DA NL 83336 C NL83336 C NL 83336C
- Authority
- NL
- Netherlands
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH734823X | 1952-08-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL83336C true NL83336C (en:Method) |
Family
ID=4532649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL83336D NL83336C (en:Method) | 1952-08-26 |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH307810A (en:Method) |
| DE (1) | DE932373C (en:Method) |
| FR (1) | FR71920E (en:Method) |
| GB (1) | GB734823A (en:Method) |
| NL (1) | NL83336C (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1047788B (de) * | 1956-01-20 | 1958-12-31 | Geigy Ag J R | Verfahren zur Herstellung von Derivaten des 4-Oxycumarins |
| US3022317A (en) * | 1956-01-20 | 1962-02-20 | Geigy Chem Corp | 3-benzyl-4-hydroxycoumarin and a process for the preparation of derivatives of 3-benzyl-4-hydroxycoumarin |
-
0
- NL NL83336D patent/NL83336C/xx active
-
1952
- 1952-08-26 CH CH307810D patent/CH307810A/de unknown
-
1953
- 1953-08-07 DE DEH17324A patent/DE932373C/de not_active Expired
- 1953-08-26 GB GB23556/53A patent/GB734823A/en not_active Expired
- 1953-08-31 FR FR71920D patent/FR71920E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE932373C (de) | 1955-08-29 |
| FR71920E (fr) | 1960-03-14 |
| GB734823A (en) | 1955-08-10 |
| CH307810A (de) | 1955-06-15 |