In the title compound, C(19)H(18), the anthracene system is almost planar, with a maximum deviation of -0.039 (1) Å. The structure is stabilized by C-H⋯π inter-actions. The pentene moiety is not planar and is twisted away from the attached anthracene system with a maximum torsion angle of 91.2 (1)°.

In the title compound, C(13)H(12)O, the cyclo-pentene ring fused with the naphthalene group adopts an envelope conformation. The cyclo-pentene torsion angle, with the fusion bond at the centre, has a magnitude of 1.16 (16)°. In the crystal, neigh-bouring mol-ecules are connected through O-H⋯O hydrogen bonds into an R(4) (4)(8) ring motif. The crystal packing also features weak π-π stacking inte...

A four-step stereocontrolled synthesis of polyfunctionalized cis-decalins is described, involving oxidation of 2-methoxyphenol, intermolecular Diels-Alder reaction, olefination, and Cope rearrangement. Application of this efficient strategy to the total syntheses of (()-eremopetasidione, (()-3â-angeloyloxyfuranoeremophilane, and (()-3â-methacryloyloxyfuranoeremophilane was accomplished from cre...

The title compound, C(31)H(26)F(6)N(4)S(2), is a new photochromic dithienylethene with dicyano-vinyl subsitituents. In the crystal structure, the mol-ecule adopts a photoactive anti-parallel conformation, with two n-pentyl groups located on opposite sides of the cyclo-pentene ring. The cyclo-pentene ring assumes an envelope conformation. The distance between the two reactive C atoms on the thio...