Xanthones and benzothiazoles are important classes of heterocyclic compounds with versatile biological activities. Herein, we describe a straightforward scalable synthesis 5-chloro-6-oxo-6H-xantheno[4,3-d]thiazole-2-carbonitrile, thiazole-fused xanthone, via six-step approach, using Appel’s salt for the thiazole ring. The xanthone was fully characterized employing 1H 13C NMR spectra, direct lon...

The title compound, C(14)H(11)BrClNO, is a Schiff base compound derived from the condensation of 3-bromo-5-chloro-salicyl-aldehyde and o-toluidine in methanol. The aromatic rings make a dihedral angle of 38.3 (1)°. The mol-ecular conformation is stabilized by an intra-molecular O-H⋯N hydrogen bond, generating an S(6) ring.

THE DIHEDRAL ANGLE BETWEEN THE PLANES OF TWO AROMATIC RINGS IN THE TITLE COMPOUND [SYSTEMATIC NAME: 3-benzoyl-5-chloro-pyrimidine-2,4(1H,3H)-dione], C(11)H(7)ClN(2)O(3), is 86.79 (6)°. Centrosymmetric dimers formed by N-H⋯O hydrogen bonds are linked through C-H⋯O inter-actions, forming a two-dimensional network parallel to (10).