Synthesis and solid-state luminescence of highly-substituted 6-amino-2H-pyran-2-one derivatives

[Display omitted] •The new route to highly substituted 6-amino-2H-pyran-2-one derivatives is described.•A mechanism for ADCP heterocyclization in acidic media is proposed.•The one key intermediate was isolated and characterized by XRD. A fast and convenient synthesis and solid-state luminescence properties of new highly-substituted 6-amino-2H-pyran-2-one derivatives is described. These compounds were obtained from inexpensive and available 2-acyl(aroyl)-1,3-dicyano-1,3-bis-methoxycarbonylpropenides via regioselective heterocyclization under the action of sulfuric and hydroiodic acid. Compounds containing 6-amino-2H-pyran-2-one moiety are nearly unstudied, but are of interest for obtaining condensed biologically active compounds based on this scaffold.