Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 4 (April 2013)

organic compounds

Acta Cryst. (2013). E69, o541    [ doi:10.1107/S1600536813006739 ]

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

M. M. Kurbanova, E. Z. Huseynov, A. V. Gurbanov, A. M. Maharramov and R. Kia

Abstract: In the title compound, C21H24BrNO4, the dihedral angle between the heterocyclic ring and the pendant aromatic ring is 80.20 (13)°. The hexahydroquinone [i.e. the one with the C=O group] ring adopts a sofa conformation. An intra­molecular O-H...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-H...O inter­actions, forming chains parallel to [101]. There are no significant C-H...[pi] or [pi]-[pi] inter­actions in the crystal structure.

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