Wittig reaction

Wittig reaction
Named after	Georg Wittig
Reaction type	Coupling reaction
Reaction
aldehyde or ketone + triphenyl phosphonium ylide ↓ alkene + (Ph)3P=O
Conditions
Typical solvents	typically THF or diethyl ether
Identifiers
March's Advanced Organic Chemistry	16–44 (6th ed.)
Organic Chemistry Portal	wittig-reaction
RSC ontology ID	RXNO:0000015 Y
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The Wittig reaction or Wittig olefination is a chemical reaction of an aldehyde or ketone with a triphenyl phosphonium ylide called a Wittig reagent. Wittig reactions are most commonly used to convert aldehydes and ketones to alkenes.^[1][2][3] Most often, the Wittig reaction is used to introduce a methylene group using methylenetriphenylphosphorane (Ph₃P=CH₂). Using this reagent, even a sterically hindered ketone such as camphor can be converted to its methylene derivative.