ChemInform Abstract: The Origin of High Enantioselectivity in the Dihydroxylation of Olefins Using Osmium Tetraoxide and Cinchona Alkaloid Catalysts.

ChemInform ◽  
2010 ◽  
Vol 24 (36) ◽  
pp. no-no
Author(s):  
E. J. COREY ◽  
M. C. NOE ◽  
S. SARSHAR
Keyword(s):  
Cinchona Alkaloid ◽  
Osmium Tetraoxide

On "The origin of high enantioselectivity in the dihydroxylation of olefins using osmium tetraoxide and cinchona alkaloid catalysts"

1993 ◽  
Vol 115 (25) ◽  
pp. 12226-12227 ◽  
Author(s):  
Hartmuth C. Kolb ◽  
Pher G. Andersson ◽  
Youssef L. Bennani ◽  
Gerard A. Crispino ◽  
Kyu Sung Jeong ◽  
...  
Keyword(s):  
Cinchona Alkaloid ◽  
Osmium Tetraoxide

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

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Shaheen M. Sarkar ◽  
Md. Eaqub Ali ◽  
Md. Lutfor Rahman ◽  
Mashitah Mohd Yusoff
Keyword(s):  
Catalytic System ◽  
Catalyst System ◽  
Optically Active ◽  
Cinchona Alkaloid ◽  
Chiral Ligand ◽  
Asymmetric Dihydroxylation ◽  
Osmium Tetraoxide ◽  
Vicinal Diol ◽  
Ordered Mesoporous ◽  
Prepared Complex

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.

The structure of osmium tetraoxide-cinchona alkaloid complexes

1989 ◽  
Vol 54 (10) ◽  
pp. 2263-2264 ◽  
Author(s):  
J. S. Svendsen ◽  
Istvan Marko ◽  
Eric N. Jacobsen ◽  
C. Pulla Rao ◽  
Simon Bott ◽  
...  
Keyword(s):  
Cinchona Alkaloid ◽  
Osmium Tetraoxide
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