Received 17 June 2011
In the title compound, C19H17BrN2O2, the pyrazole ring makes dihedral angles of 88.00 (16) and 5.78 (13)° with the phenyl and bromophenyl rings, respectively. In the crystal, molecules are linked by weak intermolecular C-HO hydrogen bonds.
For the pharmacological activity of pyrazole compounds and applications of nitrogen-containing heterocyclic compounds, see: Ge et al. (2009, 2011). For the related structures, see: Han et al. (2011); Ge et al. (2007); Li et al. (2011).
Data collection: SMART (Bruker, 2005); cell refinement: SAINT (Bruker, 2005); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: WN2438 ).
The authors are very grateful to Li Jikun (Taishan College) for his invaluable support.
Bruker (2005). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Ge, Y.-Q., Dong, W.-L., Xia, Y., Wei, F. & Zhao, B.-X. (2007). Acta Cryst. E63, o1313-o1314.
Ge, Y. Q., Jia, J., Li, Y., Yin, L. & Wang, J. W. (2009). Heterocycles, 42, 197-206.
Ge, Y. Q., Jia, J., Yang, H., Tao, X. T. & Wang, J. W. (2011). Dyes Pigments, 88, 344-349.
Han, Z., Zheng, H.-L. & Tian, X.-L. (2011). Acta Cryst. E67, o511.
Li, Y.-Q., Jia, B.-X., Xiao, Y.-L. & Guo, F.-G. (2011). Acta Cryst. E67, o468.
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.