Synthesis of nitrones

Recent Literature

A general, high yielding, and user and environmentally friendly catalytic oxidation procedure for the chemoselective oxidation of imines to nitrones is reported.
G. Soldaini, F. Cardona, A. Goti, Org. Lett., 2007, 9, 473-476.

Oxidations of organic substrates such as sulfides, secondary amines, N-hydroxylamines, and tertiary amines with molecular oxygen in the presence of 5-ethyl-3-methyllumiflavinium perchlorate catalyst and hydrazine monohydrate in 2,2,2-trifluoroethanol occur highly efficiently to give the corresponding oxidized compounds in excellent yields.
Y. Imada, H. Iida, S. Ono, S.-I. Murahashi, J. Am. Chem. Soc., 2003, 125, 2868-2869.