trans-benzylideneacetone
Also known as trans-4-Phenyl-3-butene-2-one, Methyl trans-styryl ketone, trans-Benzalacetone, (E)-4-phenylbut-3-en-2-one
Benzylideneacetone is the organic compound described by the formula C6H5CH=CHC(O)CH3. Although both cis- and trans-isomers are possible for the α,β-unsaturated ketone, only the trans isomer is observed. Its original preparation demonstrated the scope of condensation reactions to construct new, complex organic compounds. Benzylideneacetone is used as a flavouring ingredient in food and perfumes.
Article
3 sectionsContents
- Preparation
- Reactions
- References
Benzylideneacetone is the organic compound described by the formula C6H5CH=CHC(O)CH3. Although both cis- and trans-isomers are possible for the α,β-unsaturated ketone, only the trans isomer is observed. Its original preparation demonstrated the scope of condensation reactions to construct new, complex organic compounds. Benzylideneacetone is used as a flavouring ingredient in food and perfumes.
==Preparation== Benzylideneacetone can be efficiently prepared by the base-induced condensation of acetone and benzaldehyde: