Ethyl 4-(5-bromo-1H-indol-3-yl)-2,6,6-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate


GÜNDÜZ M. G. , Butcher R. J. , Yildirim S. O. , El-Khouly A., Safak C. , ŞİMŞEK R.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, cilt.68, 2012 (ESCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 68
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1107/s1600536812046909
  • Dergi Adı: ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS

Özet

The title compound, C23H25BrN2O3, crystallizes with two independent molecules in the asymmetric unit (Z' = 2) which differ in the twist of the 5-bromo-1H-indole ring with respect to the plane of the 4-methyl-1,4,5,6,7,8-hexahydroquinoline ring [dihedral angles of 78.55 (9) and 89.70 (8)(circle) in molecules A and B, respectively]. The indole ring is planar in both molecules [maximum deviations = 0.021 (3) and -0.020 (3) angstrom for the N atom] while the cyclohexene ring has adopts a sofa conformation. In the crystal, molecules are linked by pairs of N-H...O hydrogen bonds, forming dimers with R-1(2) (6) ring motifs. These dimers are connected by NH...O hydrogen bonds, generating chains along [110]. A CH...O contact occurs between the independent molecules.