organic compounds
The title compound, C21H17Cl1N2O2, was synthesized by the reaction of 7-methoxy-2-tetralone, 2-chlorobenzaldehyde and malononitrile in the presence of triethylbenzylammonium chloride in an aqueous medium. X-ray analysis reveals that the pyran ring and the fused six-membered ring adopt boat and half-chair conformations, respectively.
organic compounds
The title compound, C32H24Cl2O2·C3H6O, was synthesized by the dimerization of 2-(4-chlorobenzal)inden-1-one, induced by a low-valent titanium reagent (TiCl4/Zn). X-ray analysis reveals that the cyclopentane ring spiro-fused to the five-membered ring adopts an envelope conformation, while the other cyclopentane ring adopts an envelope conformation.