A novel reductive olefination reaction with aldehydes, mediated by Ti(O-i-Pr)4 and PPh3, provides a one-pot synthesis of trifluoromethylated trans-allylic alcohols: Chem. Commun., 2195 (1998).
The oxime is readily converted with base to the highly reactive species 1,1,1-trifluoro-2-nitroso-2-propene, which undergoes hetero-Diels-Alder reactions, e.g. with cyclopentadiene or indole to give fused oxazolines. The indole adduct rearomatizes to give 1-(3-indolyl)-3,3,3-trifluoroacetoxime: J. Org. Chem., 57, 339 (1992).