Sharpless asymmetric dihydroxylation

E316987

Sharpless asymmetric dihydroxylation is a landmark chemical reaction that uses chiral catalysts to add two hydroxyl groups across an alkene with high enantioselectivity, revolutionizing asymmetric synthesis in organic chemistry.

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Predicate Object
instanceOf asymmetric catalytic reaction
chemical reaction
name reaction
oxidation reaction
addsFunctionalGroup hydroxyl group
addsNumberOfHydroxylGroups 2
application pharmaceutical synthesis
synthesis of chiral building blocks
total synthesis of natural products
awardRelatedTo Nobel Prize in Chemistry 2001
commercialFormulation AD-mix-α
AD-mix-β
contributedTo development of asymmetric catalysis
developedBy K. Barry Sharpless
developedInDecade 1980s
field asymmetric synthesis
organic chemistry
impact revolutionized asymmetric synthesis in organic chemistry
ligandFamily (DHQ)2PHAL
(DHQD)2PHAL
limitation uses toxic osmium tetroxide
mechanismFeature formation of cyclic osmate ester intermediate
osmium(VIII)–osmium(VI) catalytic cycle
namedAfter K. Barry Sharpless
product 1,2-diol
vicinal diol
property catalytic in osmium
high enantioselectivity
high regioselectivity
reactant alkene
olefin
selectivityControlledBy chiral ligand configuration
stereochemicalOutcome syn addition
stereocontrolType ligand-controlled
typicalBase potassium carbonate
typicalOxidant potassium ferricyanide
uses AD-mix-α
AD-mix-β
OsO4
chiral catalyst
chiral ligand
cinchona alkaloid–derived ligands
co-oxidant
osmium tetroxide
potassium ferricyanide
tert-butanol–water solvent mixture
worksBestOn terminal alkenes
worksOn disubstituted alkenes

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Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

K. Barry Sharpless notableWork Sharpless asymmetric dihydroxylation
Sharpless knownFor Sharpless asymmetric dihydroxylation
subject surface form: K. Barry Sharpless
Sharpless aminohydroxylation relatedTo Sharpless asymmetric dihydroxylation
this entity surface form: Sharpless dihydroxylation