PHOTOCHEMICAL REACTIVITY OF SPIRODIENONE OBTAINED BY OXIDATION OF BIS(2-HYDROXY-3,5-DI-T-BUTYLPHENYL)METHANONE

Article abstract of DOI:10.1016/S0040-4039(00)80843-6

Bis(2-hydroxy-3,5-di-t-butylphenyl)methanone (1) was found to give spirodienone derivative (3) under oxidative condition.UV irradiation of 3 afforded dibenzofuran derivative (5) through an α-fission of cyclohexa-2,4-dienone, accompanied by a loss of CO2.