ES378280A1 - Procedure for the obtaining of derivatives of the pyridine. (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for the obtaining of derivatives of the pyridine. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES378280A1 ES378280A1 ES378280A ES378280A ES378280A1 ES 378280 A1 ES378280 A1 ES 378280A1 ES 378280 A ES378280 A ES 378280A ES 378280 A ES378280 A ES 378280A ES 378280 A1 ES378280 A1 ES 378280A1
- Authority
- ES
- Spain
- Prior art keywords
- formula
- translation
- 4ars
- procedure
- radical
- 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
- Pyridine Compounds (AREA)
Abstract
Procedure for obtaining pyridine derivatives, of general formula Ib, **(See formula)** wherein RI1 signifies a lower alkyl, alkenyl or alkynyl radical, R2 signifies chlorine, bromine, fluorine, or a lower alkyl radical, and R3 signifies hydrogen, chlorine, bromine, fluorine, or an alkyl, alkylthio or lower alkoxy radical, or trifluomethyl, characterized in that a compound (4aRS, 5SR, 9bSR) or (4aR5,5SR, 9bRS), respectively, of formula Ia is reacted, **(See formula)** wherein R2 and R3 have the meanings indicated above, with a compound of formula II, **(See formula)** where RI1 has the meaning indicated above, and X means halogen or the acidic radical of a reactive ester, in the presence of a basic condensing agent, and, if necessary, the compound mixtures are separated (4aRS, 5SR, 9bSR) and (4aRS, 5SR, 9bRS) in order to isolate one or each of the isomers. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH525869A CH513864A (en) | 1969-04-08 | 1969-04-08 | New heterocyclic antiphlogistic compounds |
CH691169A CH517744A (en) | 1969-05-06 | 1969-05-06 | New heterocyclic antiphlogistic compounds |
CH889169 | 1969-06-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES378280A1 true ES378280A1 (en) | 1973-01-16 |
Family
ID=27175149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES378280A Expired ES378280A1 (en) | 1969-04-08 | 1970-04-06 | Procedure for the obtaining of derivatives of the pyridine. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES378280A1 (en) |
-
1970
- 1970-04-06 ES ES378280A patent/ES378280A1/en not_active Expired
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