Crystal structure of 3-{1-[(1-allyl-1H-indazol-6-yl)amino]ethylidene}-6-methyl-2H-pyran-2,4(3H)-dione

Abstract

In the title compound, C18H17N3O3, the dihedral angle between the planes of the indazole ring system [maximum deviation = 0.012(1)Å] and the pyran-2,4-dione ring is 54.03(6)°. An intramolecular N-H⋯O hydrogen bond closes an S(6) ring. The same H atom also participates in an intermolecular N-H⋯O hydrogen bond, which generates an inversion dimer. The dimers are linked by weak C-H⋯O contacts, thereby forming a three-dimensional network.