8.7b Syn Dihydroxylation

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SYN DIHYDROXYLATION
Less Substituted
More Substituted
Two Groups Added
OH
OH
Reagents Added 1. OsO4
2. NaHSO3 or Na2SO3
Regioselectivity N/A
Stereospecificity Syn
Other Characteristics Intermediate is a cyclic osmate ester.
SYN DIHYDROXYLATION
Less Substituted
More Substituted
Two Groups Added
OH
OH
Reagents Added 1. KMnO4 (cold, dilute), NaOH
Regioselectivity N/A
Stereospecificity Syn
Other Characteristics Intermediate is a cyclic manganate ester.