Acta Crystallographica Section E (Nov 2009)
2-Morpholino-4-oxo-4,5-dihydrothiophene-3-carbonitrile
Abstract
The title compound, C9H10N2O2S, was obtained from the treatment of ethyl 4-cyano-3-hydroxy-5-morpholinothiophene-2-carboxylate with concentrated HCl. The mean plane of the essentially planar dihydrothiophene ring is almost orthogonal to the mirror plane of the N-morpholine substituent, making a dihedral angle of 87.2 (2)°.
