Acetonitrile, chloro DIBROMO

Perfluoro-c -2,3-dialkyloxaziridines (64) are prepared in good yield (68-77%) by MCPBA oxidation of the corresponding perfluoroazaalkenes (188) (Equation (46)) <93JOC4754>. To be successful, the peracid needs to be > 80% pure, well-dried, and the solvent needs to be acetonitrile. Interestingly, oxidation does not proceed in CH2C12. A series of 3-/-butyl-3-( 1 -haloalkyl)oxaziridine were prepared by oxidation of the corresponding a-chloro, a-bromo, a,a-dichloro, and a,a-dibromo aldimines with MCPBA <92T7345>. 

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