Palladium-Catalyzed Heteroannulation of o-Alkynylphenols with Propargyl Carbonates. A Synthesis of 2-Substituted-3-Allenylbenzo[b]furans
- 1 October 1998
- journal article
- letter
- Published by Georg Thieme Verlag KG in Synlett
- Vol. 1998 (10) , 1111-1113
- https://doi.org/10.1055/s-1998-1868
Abstract
The palladium-catalyzed reaction of 2-alkynylphenols with tertiary propargyl carbonates gives 2-substituted 3-allenyl benzo[b]furans in moderate to good yields. This heteroannulation promoted by a σ-allenylpalladium complex proceeds under neutral conditions.Keywords
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