Crystal structure of N′-[(1E)-1-(6-methyl-2,4-dioxo-3,4-dihydro-2H-pyran-3-ylidene)ethyl]benzenesulfonohydrazide

Autor: Jonnie N. Asegbeloyin, Oguejiofo T. Ujam, Chizoba M. Ngige, Valentine I. Onwukeme, Tania Groutso
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Acta Crystallographica Section E, Vol 70, Iss 11, Pp o1179-o1180 (2014)
Druh dokumentu: article
ISSN: 1600-5368
16005368
DOI: 10.1107/S1600536814022648
Popis: In the title compound, C14H14N2O5S, the molecule exists in the enamine (C=C—NH) tautomeric form. The hydrazone fragment derived from the 3-acetyl-4-hydroxy-6-methyl-2H-pyran-2-one moiety is approximately planar, with a maximum deviation of 0.1291 (11) Å for the N atom bound to the S atom of the benzensulfonohydrazide group. The latter adopts a gauche conformation relative to the hydrazone N—N bond, with an N—N—S angle of 113.54 (10)°. There is an intramolecular N—H...O=C hydrogen bond that stabilizes the tautomeric form. In the crystal, molecules are linked by N—H...O=C hydrogen bonds into chains extending parallel to [100].
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