Crystal structures of two 2,3-diaryl-2,3-di-hydro-4H-1,3-benzo-thia-zin-4-ones.

ABSTRACT: The syntheses and crystal structures of 2,3-bis-[3-(tri-fluoro-meth-yl)phen-yl]-2,3-di-hydro-4H-1,3-benzo-thia-zin-4-one (di-m-CF₃; C₂₂H₁₃F₆NOS) (1) and 2,3-bis-(4-methyl-phen-yl)-2,3-di-hydro-4H-1,3-benzo-thia-zin-4-one (di-p-CH₃; C₂₂H₁₉NOS) (2) are reported. Each structure is racemic: the asymmetric unit of 2 consists of two mol-ecules. In both 1 and 2, the six-membered 1,3-thia-zine ring is close to an envelope conformation with the chiral C atom forming the flap. In 1, the 2-aryl group is pseudo-equatorial, while in 2 it is pseudo-axial. In 1, the pendant aryl rings form a V shape with an inter-centroid distance of 3.938 (3) Å

SUBMITTER: Yennawar HP 

PROVIDER: S-EPMC5947804 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature