Dihydroxylation of alkene by osmium tetroxide

It is a chiral version of the syn dihydroxylation of alkenes by osmium tetroxide. Here is an example— though the concept is quite simple, the recipe for the reactions is quite complicated so we need to approach it step by step. 

The first theoretical study on the proposed reaction mechanisms of the dihydroxylation of alkenes by osmium tetroxide was performed in 1986 by Jorgensen and Hoffmann [ 17 ]. In that work, the authors carried out a theoretical study from a frontier orbital point of view. They used symmetry arguments and extended Hiickel [18] calculations to perform their analysis. 

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