title: 2-Methyl-4,4-dioxo-N-phenyl-5,6-di-hydro-1,4-oxathiine-3-carboxamide (Oxycarboxin).
abstract: In the title compound, C(12)H(13)NO(4)S, a systemic fungicide, the heterocycle adopts a lounge chair conformation and the dihedral angle between the ring planes is 25.8 (2)°. Inter-molecular C-H⋯O hydrogen bonds are noted in the crystal structure. Also observed is a short inter-action of a methyl-ene hydrogen atom with the π-electron system of a phenyl ring in an adjacent mol-ecule.
authors.affiliation: Department of Chemistry, Truman State University, Kirksville, MO 63501-4221, USA.
authors.forename: J Emery
authors.initials: JE
authors.lastname: Brown
authors.forename: Russell G
authors.initials: RG
authors.lastname: Baughman