Synthesis, Crystal Structure And Hirshfeld Surface Analysis Of 3-(4,4-Dimethyl-2,3,4,5-Tetra­Hydro-1H-1,5-Benzodiazepin-2-Yl­Idene)-6-Methyl-3,4-Di­Hydro-2H-Pyran-2,4-Dione

Abstract

The title compound is built up from the benzodiazepine ring system linked to the pyridyl and pendant di­hydro­pyran rings. In the crystal, N—H⋯O and C—H⋯O hydrogen bonds link the mol­ecules into a three-dimensional network. A weak C—H ⋯ π inter­action is also observed., The title compound, C17H18N2O3, is constructed from a benzodiazepine ring system linked to a pendant di­hydro­pyran ring, where the benzene and pendant di­hydro­pyran rings are oriented at a dihedral angle of 15.14 (4)°. Intra­molecular N—HDiazp⋯ODhydp and C—HDiazp⋯ODhydp (Diazp = diazepine and Dhydp = di­hydro­pyran) hydrogen bonds link the seven-membered diazepine ring to the pendant di­hydro­pyran ring, enclosing S(6) ring motifs. In the crystal, N—HDiazp⋯ODhydp hydrogen bonds link the mol­ecules into infinite chains along [10]. These chains are further linked via C—HBnz⋯ODhydp, C—HDhydp⋯ODhydp and C—HMth⋯ODhydp (Bnz = benzene and Mth = meth­yl) hydrogen bonds, forming a three-dimensional network. The observed weak C—HDiazp ⋯ π inter­action may further stabilize the structure. Hirshfeld surface analysis of the crystal structure indicates that the most important contributions for the crystal packing are from H⋯H (51.1%), H⋯C/C⋯H (25.3%) and H⋯O/O⋯H (20.3%) inter­actions. Hydrogen bonding and van der Waals inter­actions are the dominant inter­actions in the crystal packing.