(2E)-2-(2,4-Dichloro-phenyl-sulfon-yl)-3-(3-methoxy-anilino)-3-(methyl-sulfan-yl)acrylonitrile.

ABSTRACT: The title compound, C(17)H(14)Cl(2)N(2)O(3)S(2), and the 4-methyl-anilino analogue reported in the following paper have been used as starting materials to develop benzothia-zine derivatives with anti-malarial activity. The mol-ecule displays an E (trans) configuration about the central double bond. Due to conjugation in the C=C-C N group, the putative single bond shows a significant shortening [1.421 (3) Å]. The mol-ecule has a six-membered ring involving an intra-molecular N-H⋯O(sulfon-yl) bond, which is an example of resonance-assisted hydrogen bonding. There is also an intra-molecular N-H⋯Cl hydrogen bond. In the crystal structure, bonds of the C-H⋯O(sulfon-yl) type form chains that run along [101], while N-H⋯O(sulfon-yl) bonds connect centrosymmetrically related molecules in pairs of t

SUBMITTER: Capparelli MV 

PROVIDER: S-EPMC2961343 | biostudies-literature | 2008 May

REPOSITORIES: biostudies-literature