Base‐Catalyzed Condensation of 2‐Hydroxybenzaldehydes with α,β‐Unsaturated Aldehydes – Scope and Limitations |
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Authors: | Bernhard Lesch Jakob Torng Sylvia Vanderheiden Stefan Brse |
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Abstract: | The base‐catalyzed condensation of α,β‐unsaturated carbonyl compounds with 2‐hydroxybenzaldehydes yielding tetrahydroxanthones and dihydrobenzopyrans has been investigated. A novel access to highly functionalized dihydrobenzopyrans via a mild generation of the dienol of senecialdehyde and subsequent conjugated aldol reaction has been reported. |
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Keywords: | γ ‐aldol reaction enols enones nucleophilic addition oxygen heterocycles |
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