CONTROL OF PHOTOREACTIONS OF EIGHT MEMBERED RING DI- AND TRIENONES IN A CRYSTALLINE INCLUSION COMPLEX WITH OPTICALLY ACTIVE 1,6-DI(o-CHLOROPHENYL)-1,6-DIPHENYLHEXA-2,4-DIYNE-1,6-DIOL

Article abstract of DOI:10.1016/S0040-4039(00)80174-4

By complexing with the title host compound, flipping equilibrium of cycloocta-2,4,6-trien-1-one was frozen in one optical conformer as a 2:1 complex, which upon irradiation gave optically active bicyclo<4.2.0>octa-4,7-dien-2-one.Irradiation of a 1:2 complex of cycloocta-2,4-dien-1-one and the same host compound gave an optically active dimer, anti-tricyclo<8.6.0.0^2,9>hexa-deca-7,11-diene-3,16-dione.