We presented the intramolecular [3+2] cycloaddition of innovative (E)-α-aryl enal derivatives with 4-aminopyrazolone hydrochlorides/3-aminooxindole hydrochlorides to afford an array of atropisomeric benzoxepinone-based styrene fused to spiro[pyrrolidine-pyrazolone/oxindole] scaffolds, and then kinetic...