organic compounds
Open access
In the title compound, C31H30N2O, the cis-fused cyclohexene and cyclooctane rings adopt boat and boat-chair conformations, respectively. The essentially planar five-membered N-heterocyclic ring [r.m.s. deviation = 0.017 (1) Å] is cis- and trans-fused, respectively, with the cyclohexene and cyclooctane rings. In the crystal, molecules are linked into inversion dimers through pairs of weak C—HO interactions.
organic compounds
Open access
In the title compound, C23H17FO2, the cyclohexenone ring has an envelope conformation, the flap atom being the C atom to which the phenyl ring is attached. The 4-fluorobenzoyl ring and the phenyl ring are inclined to one another by 28.77 (7)°, and by 52.00 (7) and 44.77 (7) °, respectively, to the aromatic ring fused to the cyclohexenone ring. In the crystal, molecules are linked via C—HO hydrogen bonds, forming a two-dimensional network lying parallel to (100).
organic compounds
Open access
The title compound, C19H19NO3S, was produced by the self-reaction of N-cinnamyl-N-tosylacrylamide in the presence of palladium(II) acetate via an intramolecular C—C coupling reaction and C—H activation. There are two chiral C atoms in the molecule, but the crystal is a racemic system due to a lack of chiral separation. The five-membered ring is twisted about the methylene–methane bond, and the cyclohexa-1,4-diene ring has a boat conformation. The dihedral angle between the benzene rings is 88.27 (14)°, indicating an almost orthogonal relationship and an approximate L-shape for the molecule. In the crystal, the presence of C—Hπ interactions leads to inversion dimers.