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An aminocatalytic deconjugative addition/cyclization cascade of γ,γ-disubstituted enals with carboxylic acid-activated enones was realized. The in situ generated dienamine species was regioselectively trapped at the α position by carboxylic acid-activated… Click to show full abstract
An aminocatalytic deconjugative addition/cyclization cascade of γ,γ-disubstituted enals with carboxylic acid-activated enones was realized. The in situ generated dienamine species was regioselectively trapped at the α position by carboxylic acid-activated enones, leading to highly functionalized γ-lactones with excellent enantioselectivities. Further synthetic elaboration of the products allows diverse synthesis of a set of complex chiral targets.
Keywords:
activated enones;
cyclization cascade;
carboxylic acid;
acid activated;
addition cyclization;
deconjugative addition
Journal Title: Organic chemistry frontiers
Year Published: 2020
Link to full text (if available)
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Journal Title: Organic chemistry frontiers
Year Published: 2020
Link to full text (if available)
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recommendations!