The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5,6-Dihydro-2H-pyran-2-one( cas:3393-45-1 ) is researched.Electric Literature of C5H6O2.Souza, Diana Meneses; Machado, Luciana Lucas; Machado, Angelo Henrique Lira published the article 《First total synthesis of (±)-floribundane B: An approach based on Johnson-Claisen rearrangement of a Morita-Baylis-Hillman adduct》 about this compound( cas:3393-45-1 ) in Tetrahedron Letters. Keywords: floribundane B synthesis Johnson Claisen rearrangement; oleocanthal formal synthesis Johnson Claisen rearrangement. Let’s learn more about this compound (cas:3393-45-1).
The first total synthesis of (±)-floribundane B (I) is reported. Johnson-Claisen rearrangement of a Morita-Baylis-Hillman adduct assembled all of the stereochem. features of this secoiridoid. The formal synthesis of (±)-oleocanthal and the synthesis of a chem. constituent of olive press juice is also reported.
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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI