In the title molecule, C20H17ClN2O, the dihedral angle between the mean plane of the quinoline ring system and the benzene ring of the dihydroquinolinone moiety is 57.84 (8)°. In the crystal, molecules are linked into centrosymmetric dimers via pairs of intermolecular N—H⋯N hydrogen bonds. These dimers are further stabilized by weak π–π stacking interactions between pyridine rings with a centroid–centroid distance of 3.9414 (12) Å.
The molecule of the title compound, C23H23ClN2O4, contains a quinolyl unit linked to a functionalized pyrrolidine system with a 3,4-trans arrangement of the substituents. The unit cell contains two stereoisomers that have the absolute stereochemistry 3S,4R and 3R,4S. The pyrrolidine ring adopts a twist conformation with pseudo-rotation parameters P = 258.2 (3)° and τ(M) = 35.3 (1)°. The packing is stabilized by C—H⋯π interactions and offset π–π stacking (centroid-to-centroid distance = 3.849 Å, interplanar distance = 3.293 Å and slippage = 1.994 Å) between phenyl rings, leading to a two-dimensional network.
New series of Pd-catalysts based N-heterocyclic carbene ligand PEPPSI-Type, (PEPPSI = Pyridine Enhanced Precatalyst Preparation Stabilization and Initiation) with the general formula [Pd(II)Br2(NHC)(pyridine)]. were synthesized, and fully characterized by spectroscopic...
A series of substituted 4H-pyrans derivatives were synthesized by a one-pot, multi-component reaction of aromatic aldehydes, malononitrile, and pyrazolone derivatives or active methylene carbonyl compounds such as dimedone, in the presence of 1,3-dimethyl imidazolium dimethyl phosphate [DMImd-DMP] as a catalyst in aqueous ethanol. Recyclability of the catalyst, high yields, simple product isolation and high atom economy are the noteworthy aspects of this protocol.
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