A new one-pot domino reaction for a general entry to functionalised bridged bicyclo[n.2.1] ring systems from alpha, alpha'-diactivated cyclic ketones and trans-1,4-dihalides is described. The sequence combines a base promoted C-O cycloalkylation reaction leading to fused polycyclic enol ethers and their in situ palladium-catalysed isomerisation.
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