Abstract
In the title compound, C17H18N4O4, the dihedral angle between the benzene ring and 2,4-dihydropyrano[2,3-c]pyrazole ring system is 89.41 (7)°. The pyran moiety adopts a strongly flattened boat conformation. In the crystal, molecules are linked by N—H⋯N, N—H⋯O, C—H⋯N and C—H⋯O hydrogen bonds into an infinite two-dimensional network parallel to (110). There are π–π interactions between the pyrazole rings in neighbouring layers [centroid–centroid distance = 3.621 (1) Å].
Highlights
In the title compound, C17H18N4O4, the dihedral angle between the benzene ring and 2,4-dihydropyrano[2,3-c]pyrazole ring system is 89.41 (7)
Molecules are linked by N—H N, N—H O, C—H N and C—
H atoms treated by a mixture of independent and constrained refinement max = 0.22 e Å3
Summary
6-Amino-3-methyl-4-(3,4,5-trimethoxyphenyl)-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile Tawi 180 006, India, and bLaboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati University, Santiniketan 731 235, West R factor = 0.047; wR factor = 0.125; data-to-parameter ratio = 13.8. In the title compound, C17H18N4O4, the dihedral angle between the benzene ring and 2,4-dihydropyrano[2,3-c]pyrazole ring system is 89.41 (7) . The pyran moiety adopts a strongly flattened boat conformation. In the crystal, molecules are linked by N—H N, N—H O, C—H N and C— H O hydrogen bonds into an infinite two-dimensional network parallel to (110). There are – interactions between the pyrazole rings in neighbouring layers [centroid–centroid distance = 3.621 (1) Å].
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