[GRAPHICS]
The oxidation of iodomethane with dimethyldioxirane allows the generation o
f stable neutral solutions of hypoiodous acid in the absence of any trappin
g agent for iodide anion. Hypoiodous acid is trapped in situ by addition to
representative olefins to give iodohydrines in good yields. The stereochem
ical study of the products shows the anti-stereospecific nature of the iodo
hydroxylation reaction.