The title compound, C16H17NO3, crystallizes in the space group P , with one molecule in the asymmetric unit. The amide H atom is engaged in an intramolecular N—H…O contact to the O atom of one of the two carbonyl groups. The molecules form centrosymmetric dimers through self-complementary C—H…O hydrogen-bonding interactions defining the R22(14)[R21(6)] motif. The supramolecular structure is achieved by aryl C—H… interactions, as well as face-to-face – stacking interactions between lactone and benzenoid rings.
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Document Type: Research Article
Publication date: December 1, 2004