Dedicated to Prof. Dr. Klaus Theodor Wanner on the occasion of his 60th birthday
Abstract
The consecutive four-component synthesis of 5-acylpyridin-2(1H)-ones initiated by a copper-free alkynylation in a one-pot fashion has been expanded
to include considerably less nucleophilic anilines as the amine component in the Michael
addition step by altering the solvent system to 1,4-dioxane; 17 examples for the synthesis
of 1-aryl-5-benzoyl-6-phenyl-3,4-dihydropyridin-2(1H)-ones were obtained in moderate to good yields.
Key words
multicomponent reactions - C–C coupling - alkynes - heterocycles - palladium