Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 5 (May 2013)

organic compounds

Acta Cryst. (2013). E69, o736-o737    [ doi:10.1107/S1600536813009914 ]


N. N. Gajera, M. C. Patel, M. M. Jotani and E. R. T. Tiekink

Abstract: In the title compound, C17H15N3O2, two independent mol­ecules (A and B) comprise the asymmetric unit. The major conformational difference arises in the relative orientation of the pyrazole ring amine and dioxole substituents which are anti in A and syn in B. The five-membered dioxole ring in each mol­ecule has an envelope conformation with the methyl­ene C atom as the flap. The mean plane through the benzodioxole and benzene groups make dihedral angles of 31.67 (8) and 68.22 (9)°, respectively, with the pyrazole ring in A; the equivalent values for B are 47.18 (7) and 49.08 (9)°. In the crystal, supra­molecular zigzag chains along the b-axis direction arise as a result of N-H...N hydrogen bonding. These are consolidated into supra­molecular double chains via C-H...O and C-H...[pi] inter­actions.

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