Acta Crystallographica Section E (Oct 2009)
Ethyl 4-(4-chlorophenyl)-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate
Abstract
In the title compound, C14H15ClN2O2S, the tetrahydropyrimidine ring adopts a twisted boat conformation with the carbonyl group in an s-trans conformation with respect to the C=C double bond of the six-membered tetrahydropyrimidine ring. The molecular conformation is determined by an intramolecular C—H...π interaction. The crystal structure is further stabilized by intermolecular N—H...O molecular chains and centrosymmetric N—H...S dimers.