Ethyl 1-(2-bromopropanoyl)-4-hydroxy-2,6-diphenyl-1,2,5,6-tetrahydropyridine-3-carboxylate

oleh: G. Aridoss, D. Gayathri, D. Velmurugan, M. S. Kim, Yeon Tae Jeong

Format: Article
Diterbitkan: International Union of Crystallography 2009-07-01

Deskripsi

The title compound, C23H24BrNO4, crystallizes with two independent molecules per asymmetric unit. The methyl group of the ethoxycarbonyl unit is disordered over two positions, with occupancies of 0.715 (12) and 0.285 (12) in one of the independent molecules, and 0.529 (11) and 0.471 (11) in the other molecule. In one of the independent molecules, the tetrahydropyridine ring adopts a half-chair conformation, while in the other it is in a distorted envelope conformation. In each independent molecule, an intramolecular O—H...O hydrogen bond generates an S(6) ring motif. The two independent molecules are linked via C—H...O hydrogen bonds, forming a chain along the c axis.