Intramolecular photocyclisation reactions of 5-tert-butyldimethylsilyloxymethyl-3-(3-formylpropyl)furan-2(5H
)-one: formation of bicyclic and spirobicyclic lactones
Abstract
5-tert-Butyldimethylsilyloxymethyl-3-(3-formylpropyl)furan-2(5H
)-one has been synthesised and upon irradiation yields either one homochiral bicyclic lactone or a mixture of spirobicyclic lactones (in modest yield) depending upon the irradiation conditions.
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)-one: formation of bicyclic and spirobicyclic lactones