3′,4′-Bis(4-chloro­phenyl)­spiro­[chroman-3,5′(4′H)-isoxazol]-4-one

The title compound, C₂₃H₁₅Cl₂NO₃, crystallizes with two independent mol­ecules in the asymmetric unit. The chroman­one moiety consists of a benzene ring fused with a six-membered heterocyclic ring which adopts a sofa conformation. The five-membered spiro­isoxazoline ring is in an envelope conformation. The p-chloro­phenyl rings bridged by the five-membered ring are nearly perpendicular to each other. The chromanone moiety of one mol­ecule packs into the cavity formed by the p-chloro­phenyl rings of a second mol­ecule through the formation of C—H⃛π interactions. The structure is stabilized by weak C—H⃛O, C—H⃛Cl and C—H⃛π interactions.