N-(2,3,4-Trifluoro­phen­yl)pyrrolidine-1-carboxamide

In the title compound, C₁₁H₁₁F₃N₂O, a urea derivative, the best plane through the pyrrole ring makes a dihedral angle of 9.69 (13)° with the benzene ring. The amino H atom is shielded, so that it is not involved in any hydrogen-bonding inter­actions.

Hexyl (E)-3-(3,4-dihy­droxy­phen­yl)acrylate

The title mol­ecule, C₁₅H₂₀O₄, has an E conformation about its C=C bond and is almost planar (r.m.s. deviation of all non-H atoms = 0.04 Å). The crystal structurere features O—H...O and C—H...O hydrogen bonds.

6′-Bromo-1′H-spiro­[cyclo­hexane-1,2′-pyrido[2,3-d]pyrimidin]-4′(3′H)-one

The title compound, C₁₂H₁₄BrN₃O, is built up from two fused six-membered rings and one six-membered ring linked through a spiro C atom. The hydro­pyrimidine ring has an envelope conformation and the cyclo­hexane ring is in a chair conformation. In the crystal, mol­ecules are linked by N—H...O and N—H...N hydrogen bonds, forming a mol­ecular tape along the b axis.

(E)-N-{(E)-2-[(3,5-Dimethylbiphenyl-4-yl)imino]­acenaphthen-1-yl­idene}-2,6-di­methyl-4-phenyl­aniline

The title compound, C₄₀H₃₂N₂, has crystallographic twofold rotation symmetry, with two C atoms lying on the axis. The dihedral angle between the two benzene rings of the 4-phenyl-2,6-dimethyl­phenyl group is 35.74 (17)°. The acenaphthene ring makes an angle of 76.93 (11)° with the benzene ring bonded to the N atom and an angle of 41.53 (13)° with the other benzene ring.