Photochemistry of 2-(Trifluoromethyl)cyclohexanone

Article abstract of DOI:10.1002/hlca.19840670305

The photochemical behaviour of the title compound 1a is compared to that of the non-fluorinated parent ketone 2-methylcyclohexanone (1b).Substitution of the CH3-group on C(2) by a trifluoromethyl group strongly enhances 2H- and RH-reduction product formation in cyclohexane or 2-propanol and oxetane formation in the presence of 2-methylpropene as olefinic component.Under all these conditions 1b exclusively undergoes α-cleavage, a process observed for 1a only in non-reducing solvents as benzene or tert-butyl alcohol.