67. Homoconjugated Ketones with Extended Unsaturation: Wavelength-Selective, Regioselective, Diastereoselective, and Enantiospecific Photochemical Transformations of Methyl 7-Oxospiroundeca-1,3-and -2,4-diene-2-carboxylate

Article abstract of DOI:10.1002/hlca.19930760305

The title molecules were shown to photorearrange with remarkable selectivity.Wavelength variation steers the rearrangement modes, of which the <1,2>-acyl shift was found to be largely regioselective, diastereoselective, and enantiospecific.Chemical interc