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Crystal structure of N'-[(1E)-1-(6-methyl-2,4-dioxo-3,4-di-hydro-2H-pyran-3-yl-idene)eth-yl]benzene-sulfono-hydrazide.

Asegbeloyin JN, Ujam OT, Ngige CM, Onwukeme VI, Groutso T - Acta Crystallogr Sect E Struct Rep Online (2014)

Bottom Line: 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 intra-molecular N-H⋯O=C hydrogen bond that stabilizes the tautomeric form.In the crystal, mol-ecules are linked by N-H⋯O=C hydrogen bonds into chains extending parallel to [100].

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Affiliation: Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Enugu State, Nigeria.

ABSTRACT
In the title compound, C14H14N2O5S, the mol-ecule exists in the enamine (C=C-NH) tautomeric form. The hydrazone fragment derived from the 3-acetyl-4-hy-droxy-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 benzensulfono-hydrazide 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 intra-molecular N-H⋯O=C hydrogen bond that stabilizes the tautomeric form. In the crystal, mol-ecules are linked by N-H⋯O=C hydrogen bonds into chains extending parallel to [100].

No MeSH data available.


The packing diagram of the title compound showing intra- and intermolecular N—H···O═C hydrogen bonds as dotted lines.
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Fap3: The packing diagram of the title compound showing intra- and intermolecular N—H···O═C hydrogen bonds as dotted lines.


Crystal structure of N'-[(1E)-1-(6-methyl-2,4-dioxo-3,4-di-hydro-2H-pyran-3-yl-idene)eth-yl]benzene-sulfono-hydrazide.

Asegbeloyin JN, Ujam OT, Ngige CM, Onwukeme VI, Groutso T - Acta Crystallogr Sect E Struct Rep Online (2014)

The packing diagram of the title compound showing intra- and intermolecular N—H···O═C hydrogen bonds as dotted lines.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4257349&req=5

Fap3: The packing diagram of the title compound showing intra- and intermolecular N—H···O═C hydrogen bonds as dotted lines.
Bottom Line: 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 intra-molecular N-H⋯O=C hydrogen bond that stabilizes the tautomeric form.In the crystal, mol-ecules are linked by N-H⋯O=C hydrogen bonds into chains extending parallel to [100].

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Enugu State, Nigeria.

ABSTRACT
In the title compound, C14H14N2O5S, the mol-ecule exists in the enamine (C=C-NH) tautomeric form. The hydrazone fragment derived from the 3-acetyl-4-hy-droxy-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 benzensulfono-hydrazide 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 intra-molecular N-H⋯O=C hydrogen bond that stabilizes the tautomeric form. In the crystal, mol-ecules are linked by N-H⋯O=C hydrogen bonds into chains extending parallel to [100].

No MeSH data available.