ES410116A1 - Procedure for the obtaining of acids 6,7-dihydrobenzo-quinolizina-carboxilicos. (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for the obtaining of acids 6,7-dihydrobenzo-quinolizina-carboxilicos. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES410116A1 ES410116A1 ES410116A ES410116A ES410116A1 ES 410116 A1 ES410116 A1 ES 410116A1 ES 410116 A ES410116 A ES 410116A ES 410116 A ES410116 A ES 410116A ES 410116 A1 ES410116 A1 ES 410116A1
- Authority
- ES
- Spain
- Prior art keywords
- formula
- translation
- procedure
- obtaining
- machine
- 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
Landscapes
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Abstract
Procedure for obtaining 6,7-dihydrobenzoquinolizine-carboxylic acids, of general formula: **(See formula)** where Y is lower alkyl, lower alkoxy, halogen, hydroxy, nitro, cyano, trifluoromethyl, amino, lower alkanido, trifluoraoetamido or N, N-dialkylamino lower, R is methyl, ethyl or trifluoromethyl, a is an integer from 0 to 2 and when n is 2, Y can be methylenedioxy or ethylenedioxy linked to adjacent ring positions, m is an integer from 0 to 2 and when R is trifluoromethyl, m is 1; and its lower alkyl esters; characterized in that a substituted tetrahydroquinoline of the formula: **(See formula)** wherein Y, R, n and m are defined as above, with a dialkyl alkoxymethylenemalonate, at a temperature of the order of 100 to 200ºC, to form an N-dialkylmethylenemalonate-substituted tetrahydroquinoline of formula: **(See formula)** wherein Y, R, n and m are defined as above, and the latter is heated, in admixture with polyphosphoric acid, to a temperature of the order of 100 to 140ºC. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US303254A US3896131A (en) | 1971-12-30 | 1972-11-02 | Substituted benzo(ij)quinolizine-2-carboxylic acids and derivatives thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES410116A1 true ES410116A1 (en) | 1976-04-01 |
Family
ID=23171220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES410116A Expired ES410116A1 (en) | 1972-11-02 | 1972-12-28 | Procedure for the obtaining of acids 6,7-dihydrobenzo-quinolizina-carboxilicos. (Machine-translation by Google Translate, not legally binding) |
Country Status (2)
| Country | Link |
|---|---|
| CS (1) | CS177114B2 (en) |
| ES (1) | ES410116A1 (en) |
-
1972
- 1972-12-28 ES ES410116A patent/ES410116A1/en not_active Expired
- 1972-12-29 CS CS906772A patent/CS177114B2/cs unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS177114B2 (en) | 1977-07-29 |
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