No abstract

The piperidone ring of the title compound, C31H28N2O4, adopts a twist boat conformation. The crystal packing is characterized by a layered arrangement of mol­ecules held together by C—H⋯O hydrogen bonds, in which each of the nitro­so and carbonyl O atoms participate. No significant aryl–aryl interactions are observed.

Key indicatorsSingle-crystal X-ray study T = 105 K Mean (C-C) = 0.003 Å Disorder in solvent or counterion R factor = 0.067 wR factor = 0.188 Data-to-parameter ratio = 18.7For details of how these key indicators were automatically derived from the article, see

The InCl3-catalyzed sequential multicomponent reaction between 2-furfurylamine, β-dicarbonyl compounds and α,β-unsaturated aldehydes in ethanol, followed by microwave irradiation in solvent-free conditions, afforded good to excellent yields of highly substituted pyridines, with loss of a 2-furylmethyl side chain. The method was also adapted to the synthesis of quinolones, isoquinolines, phenanthridines and more complex fused pyridine systems.

In the title compound, C31H28N2O2 the piperidinone ring adopts a twist‐boat conformation. A C—H⋯O hydrogen bond between mol­ecules related through a centre of inversion leads to the formation of dimers. These centrosymmetric dimers have no hydrogen‐bond inter­actions between them and form columns running along the b axis through van der Waals inter­actions. In addition, a weak C—H⋯π inter­action involving the 2‐methyl­phen­yl ring, with H⋯π = 2.64 Å and an angle of 170°, is observed.