2-Amino-7,7-dimethyl-5-oxo-4-[3-(trifluoro­meth­yl)phen­yl]-5,6,7,8-tetra­hydro-4H-chromene-3-carbonitrile

In the title mol­ecule, C₁₉H₁₇F₃N₂O₂, the fused cyclo­hexene and pyran rings adopt sofa and flattened boat conformations, respectively. The four essentially planar atoms of the pyran ring [maximum deviation = 0.008 (2) Å] form a dihedral angle of 88.13 (9)° with the benzene ring. The F atoms of the trifluoro­methyl group were refined as disordered over three sets of sites in a 0.507 (7):0.330 (7):0.163 (3) ratio. In the crystal, mol­ecules are connected into inversion dimers via pairs of N—H...N hydrogen bonds and these dimers are further linked by N—H...O hydrogen bonds into a two-dimensional network parallel to (100).

2-[(Dimethyl­amino)­methyl­idene]propane­dinitrile

In the title moleclue, C₆H₇N₃, the mean plane of the dimethyl­amino group [maximum deviation = 0.006 (2) Å] forms a dihedral angle of 7.95 (18)° with the mean plane of the propane­dinitrile fragment [maximum deviation = 0.008 (2) Å]. In the crystal, weak C—H...N hydrogen bonds link the mol­ecules into a three-dimensional network.