Synthetic applications of alpha-fluoroalkylated enones. 1. Use as dienophiles in Diels-Alder cycloadditions.

Beta-fluoroalkylated enones are efficient dienophiles in Diels-Alder cycloadditions to prepare various fluorinated cylic compounds. However, the presence of the fluoroalkyl moiety modifies the reactivity and the selectivity of these cycloadditions.