Acta Cryst. (2013). E69, o258
[ doi:10.1107/S1600536813000858 ]

3-[2-(5-tert-Butyl-1,2-oxazol-3-yl)hydrazinylidene]chroman-2,4-dione

A. Jashari, E. Popovski, B. Mikhova, R. P. Nikolova and B. L. Shivachev

Abstract: In the title compound, C₁₆H₁₅N₃O₄, the dihedral angle between the chromane and isoxazole rings [r.m.s. deviations = 0.042 and 0.007 Å, respectively] is 20.33 (12)°. The molecular geometry is stabilized by an intramolecular N-HO hydrogen bond. In the crystal, N-HO hydrogen bonds generate chains along the c-axis direction. The crystal studied was a non-morohedral twin.

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