6-Methyl-3-phenyl-2-sulfanylidene-1,2,3,4-tetrahydroquinazolin-4-one

Abstract

The title compound, C 15H 12N 2OS, exists as the thione tautomer in the solid state. The phenyl group is almost perpendicular [dihedral angle = 87.96 (5)°] to the fused ring system (r.m.s. deviation = 0.036 Å for 13 ring and exocyclic non-H atoms). In the crystal, centrosymmetric dimers, sustained by pairs of N - H⋯S hydrogen bonds, are connected into layers parallel to (1̄01) by C - H⋯O and C - H⋯S inter-actions.