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Cycloaddition of annulated cyclohexa-2,4-dienone with electron deficient π-partners leading to tricycloundecanes having a β,γ-enone chromophore has been reported. Studies on the photochemical reaction of the chromophoric systems upon sensitized and direct irradiation has also been presented. A highly unusual behavior of the chromophoric systems upon sensitized irradiation has also been presented.
A novel one step regio- and stereoselective synthesis of functionalised bicyclo[2.2.2]octenones from readily available aromatic precursors is described. The methodology involved in situ generation of reactive spiroepoxycyclohexadienones and π 4s +π 2s cycloaddition with methyl vinyl ketone. Study on π-facial alkylation that led to the formation of homobrendane derivatives...
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