A photochemical
(UVA) continuous flow process for the amination
of thioethers and sulfoxides was performed with trichloroethoxysulfonyl
azide in the presence of catalytic iron(III) acetylacetonate. Aromatic
and aliphatic sulfilimines and sulfoximines were produced in high
yields and short reaction times. The reaction with chiral sulfoxides
was stereospecific, producing enantioenriched sulfoximines in excellent
yields.
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