Collection of Czechoslovak Chemical Communications p. 1072 - 1080 (1992)
Update date:2022-07-31
Topics:
Szychowski, Jerzy
Leniewski, Andrzej
Wrobel, Jerzy T.
Glinka, Tomasz
A general route to some 1-ethoxycarbonylquinolizinium bromides has been worked out.The method allow to conduct the condensation between β-ketoenol ethers and substituted 2-pyridylacetates in homogenous conditions in the presence of trifluoroacetic acid in an aprotic solvent.The substitution at C-6 in 2-pyridylacetates completely changes the reaction course affording 3,6-disubstituted 2-pyrones.
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