A Platinum Complex-Catalyzed Reaction of 3-Chloro-1,3-diene Monoepoxides with Carbon Nucleophiles Involving Nucleophilic Substitution at the Central Carbon Atom of the π-Allyl Ligand in the Intermediate Complex. Dependency of Regioselectivity upon the Add

The reaction of 3-chloro-1,3-diene monoepoxides with sodium ethyl acetoacetate in the presence of a catalytic amount of platinum(0) complex resulted in the formation of furan derivatives. The key feature of this new platinum-catalyzed reaction is the nucleophilic substitution at the central carbon atom of the (π-allyl) complexes, which are formed as intermediates. Then cyclization follows to give furans. Different regio isomers were obtained by changing the Lewis acid added.