%0 Journal Article
%T Ethyl 4-(5-bromo-2-hydroxyphenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate
%A Malahat M. Kurbanova
%A Elnur Z. Huseynov
%A Atash V. Gurbanov
%A Abel M. Maharramov
%J Acta Crystallographica Section E
%D 2013
%I International Union of Crystallography
%R 10.1107/s1600536813006739
%X In the title compound, C21H24BrNO4, the dihedral angle between the heterocyclic ring and the pendant aromatic ring is 80.20 (13)¡ã. The hexahydroquinone [i.e. the one with the C=O group] ring adopts a sofa conformation. An intramolecular O¡ªH...O hydrogen bond generates an S(6) ring motif. The ethyl group is disordered over two sets of sites with a refined site occupancy ratio of 0.633 (10):0.366 (10). In the crystal, molecules are linked by N¡ªH...O interactions, forming chains parallel to [101]. There are no significant C¡ªH...¦Ð or ¦Ð¨C¦Ð interactions in the crystal structure.
%U http://scripts.iucr.org/cgi-bin/paper?S1600536813006739