T. Takahashi et al., HIGHLY REGIOSELECTIVE AND DIASTEREOSELECTIVE CARBON-CARBON BOND FORMATION REACTION OF UNSYMMETRICAL ZIRCONACYCLOPENTANES USING COPPER SALT, Chemical communications, (17), 1997, pp. 1599-1600
Reaction of unsymmetrical zirconacyclopentanes with allyl chloride or
benzoyl chloride in the presence of copper chloride gave allylated or
benzoylated products with high regio- and diastereo-selectivities.