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Journal of Nanomaterials
Volume 2014, Article ID 123680, 5 pages
http://dx.doi.org/10.1155/2014/123680
Research Article

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

1Faculty of Industrial Sciences and Technology, University Malaysia Pahang, 26300 Gambang, Kuantan, Malaysia
2Nanotechnology and Catalysis Research Centre (NanoCat), University of Malaya, Level 3, Block A, IPS Building, 50603 Kuala Lumpur, Malaysia

Received 21 March 2014; Revised 20 May 2014; Accepted 21 May 2014; Published 15 June 2014

Academic Editor: Daniela Predoi

Copyright © 2014 Shaheen M. Sarkar et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

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.