Intramolecular Photocycloaddition of Dioxenones with Alkynes: Formation of Secondary Photoproducts from Cyclobutene Photoadducts
摘要:
Intramolecular photocycloaddition of 4 leads to the formation of cyclobutene photoadduct 5. Secondary photoreaction of 5 then affords either cyclobutane 19 or the bridged product 7, as a function of R (H or TMS).
Intramolecular Photocycloaddition of Dioxenones with Alkynes: Formation of Secondary Photoproducts from Cyclobutene Photoadducts
摘要:
Intramolecular photocycloaddition of 4 leads to the formation of cyclobutene photoadduct 5. Secondary photoreaction of 5 then affords either cyclobutane 19 or the bridged product 7, as a function of R (H or TMS).