GB1362337A - Process for the preparation of 3- beta-dialkyl-aminoethyl - 4-alkyl -7-carboethoxymethoxycoumarins - Google Patents
Process for the preparation of 3- beta-dialkyl-aminoethyl - 4-alkyl -7-carboethoxymethoxycoumarinsInfo
- Publication number
- GB1362337A GB1362337A GB3101972A GB3101972A GB1362337A GB 1362337 A GB1362337 A GB 1362337A GB 3101972 A GB3101972 A GB 3101972A GB 3101972 A GB3101972 A GB 3101972A GB 1362337 A GB1362337 A GB 1362337A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formula
- compounds
- july
- iii
- prepared
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- C07D311/06—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2
- C07D311/08—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring
- C07D311/16—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring substituted in position 7
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyrane Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
1362337 Coumarin derivatives GRODZISKIE ZAKLADY FARMACEUTYCZNE " POLFA " PRZEDSIEBIORSTWO PANSTWOWE 3 July 1972 [19 July 1971] 31019/72 Heading C2C Compounds of formula wherein R 1 , R 2 and R 3 each represent a C 1-3 alkyl group are prepared by action of an alkali metal carbonate or ammonia on the novel ZnCl 2 complex of the above compounds obtained by treating the reaction products of a coumarin of Formula (IV) wherein X is a halogen atom and an amine R 2 NHR 3 . The intermediates of Formula (IV) are obtained by reaction of a compound of Formula (III), below, with a halogenoacetic acid ethyl ester. The compounds of Formula (III) are prepared by reacting a compound of Formula (II) with a hydrogen halide in an anhydrous media in the presence of phosphorous acid. Reference has been directed by the Comptroller ,to Specification 1,014,053.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL14953171A PL74614B1 (en) | 1971-07-19 | 1971-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1362337A true GB1362337A (en) | 1974-08-07 |
Family
ID=19955081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3101972A Expired GB1362337A (en) | 1971-07-19 | 1972-07-03 | Process for the preparation of 3- beta-dialkyl-aminoethyl - 4-alkyl -7-carboethoxymethoxycoumarins |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4875577A (en) |
| DE (1) | DE2235428B2 (en) |
| ES (1) | ES405171A1 (en) |
| GB (1) | GB1362337A (en) |
| PL (1) | PL74614B1 (en) |
| SU (1) | SU511008A3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4452811A (en) * | 1977-11-17 | 1984-06-05 | Fidia S.P.A. | Monohalogenated derivatives of 7-hydroxy-coumarin, pharmaceutical compositions containing the same and methods of using said compositions |
-
1971
- 1971-07-19 PL PL14953171A patent/PL74614B1/xx unknown
-
1972
- 1972-07-03 GB GB3101972A patent/GB1362337A/en not_active Expired
- 1972-07-12 ES ES405171A patent/ES405171A1/en not_active Expired
- 1972-07-12 SU SU1809606A patent/SU511008A3/en active
- 1972-07-18 JP JP7195472A patent/JPS4875577A/ja active Pending
- 1972-07-19 DE DE19722235428 patent/DE2235428B2/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4452811A (en) * | 1977-11-17 | 1984-06-05 | Fidia S.P.A. | Monohalogenated derivatives of 7-hydroxy-coumarin, pharmaceutical compositions containing the same and methods of using said compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2235428B2 (en) | 1974-01-17 |
| DE2235428A1 (en) | 1973-02-15 |
| ES405171A1 (en) | 1975-07-01 |
| PL74614B1 (en) | 1974-12-31 |
| JPS4875577A (en) | 1973-10-11 |
| SU511008A3 (en) | 1976-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |