6-Amino-3,4-dimethyl-4-phenyl-2H,4H-pyrano[2,3-c]pyrazole-5-carbonitrile

Abstract

In the title compound, C(15)H(14)N(4)O, the pyrazole ring is aligned at 88.23 (4)° with respect to the aromatic ring and at 3.75 (4)° with respect to the pyran ring. In the crystal, N-H⋯N hydrogen bonds link adjacent mol-ecules into a linear chain motif. C-H⋯N inter-actions are also observed.

Fig. 1.

The molecular structure of (I), showing the atom-numbering scheme and displacement ellipsoids drawn at the 50% probability level.

Fig. 2.

The crystal packing of (I), showing intermolecular hydrogen bonding interactions as dashed lines.

Fig. 3.

The crystal packing of Compound (I) viewed down the XO-axis, showing intermolecular hydrogen bonding interactions as dashed lines.

Fig. 4.

A view of R22 (12) ring motifs formed by N—H···N interaction between two molecules. The ring forming atoms are shown in ball and stick model and the Hydrogen bond are shown in green dashed lines.

Fig. 5.

The molecular interaction showing the weak N—H···pi interaction in Compound (I). Cg is a centroid of C8—C13 ring.