Acta Cryst. (2011). E67, o848 [ doi:10.1107/S1600536811008178 ]
Abstract: In the title compound, C17H16N2O2S, the pyrazinone ring is non-planar (r.m.s. deviation = 0.1595 Å), with maximum deviations for the 4-position N atom and the adjacent non-fused-ring C atom of 0.2557 (15) and -0.2118 (16) Å, respectively. The dihedral angle between the benzyl ring and pyrazinone rings is 30.45 (18)°. Intermolecular N-HO hydrogen-bonding interactions forms inversion dimers which lead to eight-membered R22(8) ring motifs. The dimers are further connected by C-HO interactions.
Online 12 March 2011
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