Zur Photospaltung konjugierter γ,δ-Epoxyenone. UV.-Bestrahlung von 3-(1',2'-Epoxy-2'-methyl-prop-1'-yl)-5,5-dimethyl-2-cyclohexen-1-on

Article abstract of DOI:10.1002/hlca.19810640124

On ¹?,?^*-excitation (λ=254 nm) 9 undergoes cleavage of the C(γ),C(δ)-bond yielding 17 and a, which gives 18 by photofragmentation.In presence of maleinic ester the photolysis of 9 yields 20, in the presence of methanol 21 and 22 are