Action comparée de l'eau oxygénée et d'un peracide sur un sel d'immonium pyrrolinique stéroïdique et sur l'énamine correspondante. Formation et propriétés d'un sel d'oxaziridinium

The reaction of a pyrrolinium salt with a peracid affords an oxaziridinium salt. The corresponding enamine reacts similarly to give products oxidized at the α-position to the nitrogen atom. These results are rationalized in terms of the formation of an intermediate oxaziridinium ion. The oxaziridinium salt reacts with nucleophiles to give either an carbinol iminium salt or products resulting from oxygen transfer.