1‐(6‐Amino‐1,3‐benzodioxol‐5‐yl)‐3‐(2‐oxo‐1,2‐dihydroquinolin‐3‐yl)prop‐2‐enone: a sheet built by π‐stacking of hydrogen‐bonded chains of rings

The bond distances in the molecule of the title compound, C₁₉H₁₄N₂O₄, provide evidence for electronic polarization in the aminoarylpropenone fragment and for bond fixation in the quinolinone unit. Molecules are linked by N—H...O and C—H...O hydrogen bonds into chains in which centrosymmetric rings of R₂²(8) and R₂²(18) types alternate, and these chains are linked into sheets by a single aromatic π–π stacking interaction.