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Synthesis of alpha-aryl enaminones through reactions of beta-aryl enones with benzyl azide
Reaction of benzalacetones and dibenzalacetones with benzyl azide promoted by BF3¡¤OEt2 afforded Z and E densely substituted acyclic alpha-aryl enaminones in 21-95% yield. For benzalacetones major Z-isomers were obtained, while E-isomers were the tendency for dibenzalacetones. The synthesis involves domino 1,3-dipolar cycloaddition and 1,2-aryl migration, and is the first metal free practical alternative to the preparation of acyclic alpha-aryl enaminones from commercially available or easily prepared starting materials.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Application of 538-58-9. In my other articles, you can also check out more blogs about 538-58-9
Reference£º
Synthesis and Crystal Structure of a Chiral?C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur¨Cnitrogen¨Coxygen ligand derived from aminothiourea and sodium?D-camphor-¦Â-sulfonate