Abstract
A well-defined N-heterocyclic carbene (NHC) palladium-catalyzed intramolecular cyclization reaction of aryl-substituted alkylidenecyclopropanes (ACP) to 1 -aryl dihydronaphthalenes is described. The NHC salts were found to suppress β-hydride elimination from the homoallylpalladium intermediate, which may lead to unwanted alkene formation. A plausible mechanism for the cycloisomerization was proposed.
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