Tin (IV) chloride-promoted reactions of β-dicarbonyl compounds with nitriles. Synthesis of aminopyridines and aminoquinolines.
作者:Augusto C. Veronese、Rosella Callegari、Suada Ahmed Ali Salah
DOI:10.1016/s0040-4039(00)97429-x
日期:1990.1
β-Ketoesters and β-diesters react with β-enaminonitriles in the presence of stoichiometric amounts of tin (IV) chloride to give 4-aminopyridines and pyridones while they react with aromatic orthoaminonitriles to give 4-aminoquinolines and quinolones.
1,2-Dihydro-4-amino-2-oxo-3-quinolinecarboxylic acids, esters and amide derivatives are disclosed as anti-secretory agents useful in the treatment of peptic ulcer disease.