Isocyclic Compounds
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ChemInform Abstract: A Novel Variant for the Preparation of Allyl(propargyl) Vinyl Ethers and Their Rearrangement into 5-Allyl(allenyl)-2- (2-hydroxyethyloxy)-5-chlorocyclopent-2-ene-1,4-diones.
First published: 23 June 2010
Abstract
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ChemInform Abstract
The reaction of the cyclopentenones (I) with sodium propenolate (II) as well as propargylate (V) represents a new and direct way to allyl- and propargylcyclopentenone ethers (III) and (VI), respectively. These derivatives smoothly undergo Claisen rearrangement to afford the 2-allyl(allenyl)-2-chlorocyclopenten-1,3-diones (IV) and (VII), respectively.
