Received 10 April 2013
In the title compound, C19H19BrO2, the cyclohexenone ring adopts an envelope conformation with the C atom bearing the methyl substituents as the flap. In the crystal, weak - stacking is observed between parallel aromatic rings of adjacent molecules, the centroid-centroid distance being 3.694 (6) Å. The entire bromonaphthylmethyl unit is disordered over two orientations, with a site-occupancy ratio of 0.5214 (19):0.4786 (19).
Data collection: SMART (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: XU5694 ).
This work was supported by the National Natural Science Foundation of China (No. 21172057).
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