Abstract
The structure of 4,4-dimethyl-1-[2-phenyl-1-(phenylamino)ethyl]piperidin-2,6-dione crystallizes in the orthorhombic space group Pna21 with unit-cell parameters a = 22.9565(14)Å, b = 6.3725(4)Å, c = 24.6677(17)Å, Z = 8 and V = 3608.6(4)Å3. The structure was solved by direct methods, and the final R value is 0.0826. There exists two crystallographically independent molecules in the asymmetric unit. The piperidine ring makes dihedral angles of 65.24(2)° and 56.48(2)° respectively, with the phenyl and phenylamine moieties of molecule-I (the corresponding values for molecule-II are 53.17(2)° 59.02(2)° and respectively). Few X-H…A inter- and intramolecular hydrogen interactions have been observed.
