Preparation of Mesoporous SBA‐16 Silica‐Supported Biscinchona Alkaloid Ligand for the Asymmetric Dihydroxylation of Olefins

Optically active cinchona alkaloid was anchored onto mesoporous SBA‐16 silica and the as‐prepared complex was used as a heterogeneous chiral ligand of osmium tetraoxide for the asymmetric dihydroxylation of olefins. The prepared catalytic system provided 90–93% yield of vicinal diol with 92–99% enantioselectivity. The ordered mesoporous SBA‐16 silica was found to be a valuable support for the cinchona alkaloid liganded osmium catalyst system which is frequently used in chemical industries and research laboratories for olefin functionalization.