NL7213999A - - Google Patents
Info
- Publication number
- NL7213999A NL7213999A NL7213999A NL7213999A NL7213999A NL 7213999 A NL7213999 A NL 7213999A NL 7213999 A NL7213999 A NL 7213999A NL 7213999 A NL7213999 A NL 7213999A NL 7213999 A NL7213999 A NL 7213999A
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
- C07D409/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings
- C07D409/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring-member bond
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- 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
- C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Plural Heterocyclic Compounds (AREA)
- Pyrane Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5151571A GB1359863A (en) | 1971-11-05 | 1971-11-05 | Substituted chroman-5-ols |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7213999A true NL7213999A (cs) | 1973-05-08 |
Family
ID=10460324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7213999A NL7213999A (cs) | 1971-11-05 | 1972-10-16 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE790763A (cs) |
| DE (1) | DE2253900A1 (cs) |
| FR (1) | FR2158487B1 (cs) |
| GB (1) | GB1359863A (cs) |
| NL (1) | NL7213999A (cs) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE758329A (fr) * | 1969-10-31 | 1971-04-30 | Beecham Group Ltd | Procede de preparation de benzopyranne-5-ols et des coumarines intermediaires en passant par de nouveaux beta- cetoesters |
-
0
- BE BE790763D patent/BE790763A/xx unknown
-
1971
- 1971-11-05 GB GB5151571A patent/GB1359863A/en not_active Expired
-
1972
- 1972-10-16 NL NL7213999A patent/NL7213999A/xx unknown
- 1972-11-03 DE DE19722253900 patent/DE2253900A1/de active Pending
- 1972-11-03 FR FR7238941A patent/FR2158487B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2253900A1 (de) | 1973-05-10 |
| GB1359863A (en) | 1974-07-10 |
| BE790763A (fr) | 1973-04-30 |
| FR2158487A1 (cs) | 1973-06-15 |
| FR2158487B1 (cs) | 1976-08-20 |