Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 9 (September 2012)

organic compounds

Acta Cryst. (2012). E68, o2677    [ doi:10.1107/S1600536812034605 ]


H.-K. Fun, C. K. Quah, P. S. Nayak, B. Narayana and B. K. Sarojini

Abstract: In the title compound, C20H21N3O2S, the 2,3-dihydro-1H-pyrazole ring is nearly planar (r.m.s. deviation = 0.023 Å) and forms dihedral angles of 16.96 (6) and 38.93 (6)° with the benzene and phenyl rings, respectively. The dihedral angle between the benzene and phenyl rings is 55.54 (6)°. The mol­ecular conformation is consolidated by an intra­molecular C-H...O hydrogen bond, which forms an S(6) ring. In the crystal, inversion dimers linked by pairs of N-H...Op (p = pyrazole) hydrogen bonds generate R22(10) loops. The dimers are linked by C-H...O hydrogen bonds into sheets lying parallel to (100).

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