Octet / Reactions
Wittig Reaction
Wittig Reaction (Carbonyl.) Converts CC=O to CC=C using Ph₃P=CH₂ (ylide).
Carbonyl
Reaction details
Name
Wittig Reaction
Type
Carbonyl
Starting Material
CC=O
Product
CC=C
Reagents
Ph₃P=CH₂ (ylide)
Mechanism
- Smiles
CC=O
- Description
Acetaldehyde
- Smiles
CC=O
- Description
Ylide attacks carbonyl carbon
- Smiles
CC=C
- Description
Propene formed, Ph₃P=O byproduct
Tips
Converts C=O to C=C
Ylide made from: Ph₃P + R-X, then base
Stereochemistry controlled by ylide type (stabilized vs unstabilized)
Related Reactions
grignard-addition
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