Crystal structure of N -[3-(benzo[ d ]thia-zol-2-yl)-6-bromo-2 H -chromen-2-yl-idene]-4-methyl-benzenamine.

The title compound, C 23 H 15 BrN 2 OS, was the unexpected product in an attempted synthesis of the isomeric 3-(benzo[ d ]thia-zol-2-yl)-6-bromo-1- p -tolyl-quinolin-2(1 H )-one. The C chromene =N-C angle is wide [125.28 (8)°]. The benzo-thia-zole and chromene ring systems are almost coplanar, with their planes parallel to (10); the toluene ring system is rotated by ca 40° out of the chromene plane. The mol-ecular packing involves layers with π-stacking, borderline 'weak' hydrogen bonds and possible C-H⋯π contacts.