STEREOISOMERISM OF β-POLYFLUOROALKYL-α,β-ENONES

Article abstract of DOI:10.1007/BF00961266

β-Polyfluoroalkyl-α,β-enones formed in the E,Z form are converted by the action of atmospheric oxygen into a 93:7 mixture of E,Z and Z,E isomers in the dark and 60:40 mixture of these isomers in the light.The Z isomer of 1-phenyl-4,4,4-trifluoro-2-buten-1-one was isolated preparatively for the first time and its E conforamation relative to the C-C bond was established.The Z,E isomer spontaneously transforms into the indicated equilibrium mixtures.