Abstract
The syntheses and crystal structures of two thiazinone compounds, namely, rac-2,3-diphenyl-2,3,5,6-tetrahydro-4H-1,3-thiazine-1,1,4-trione, C16H15NO3S, in its racemic form, and N-[(2S,5R)-1,1,4-trioxo-2,3-diphenyl-1,3-thiazinan-5-yl]acetamide, C18H18N2O4S, in an enantiopure form, are reported. The thiazine rings in the two structures differ in their puckering, as a half-chair in the first and a boat pucker in the second. The extended structures for both compounds have only C—H...O-type interactions between symmetry-related molecules, and exhibit no π–π stacking interactions in spite of each having two phenyl rings.
Funder
National Science Foundation
National Institutes of Health, SIG S10
Publisher
International Union of Crystallography (IUCr)
Subject
Condensed Matter Physics,General Materials Science,General Chemistry