Chemoselective carbon–carbon bond formation reactions of zirconacyclopentenes

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Abstract
The reaction of zirconacyclopentenes with allyl chloride in the presence of a copper salt and a lithium or magnesium salt proceeds at the alkenyl carbon on zirconium with high chemoselectivity; selective C–C bond formation at the alkyl carbon was also achieved by treatment of zirconacyclopentenes with a copper salt and a lithium or magnesium salt, methanol and allyl chloride.