Asymmetric oxohydroxylation of α-alkyl enoates with potassium permanganate catalyzed by monocationic quaternary...
The Sharpless Aminohydroxylation allows the syn-selective preparation of 1,2-amino alcohols by reaction of alkenes with salts of N-halosulfonamides, -amides and -carbamates using OsO4 as a catalyst. Enantioselectivity is achieved through the addition of Dihydroquinine– and Dihydroquinidine-derived chiral ligands.
Please find some examples of Aminohydroxylation promoted by Cinchona Alkaloids in our Buchler Chiral Catalyst Search.
Example from literature
Imido-osmium(VIII) compounds in organic synthesis: aminohydroxylation and diamination reactions. (Muñiz et al.; Chem. Soc. Rev. 2004, 33, 166-174.)