Reaction of palladium 1,5-cyclooctadiene alkyl chloride with norbornene derivatives: Relevance to metal-catalyzed addition polymerization of functionalized norbornenes

摘要

The insertions of norbornene, bicyclo[2.2.1]-hept-5-ene-endo-2-carboxylic acid ethyl ester, bicyclo[2.2.1]hept-5-ene-exo-2-carboxylic acid ethyl ester, and bicyclo[2.2.1]hept-5-enyl-endo-2-methyl acetate into the palladium-methyl bond of (eta(4)-cycloocta-1,5-diene)chloromethylpalladium(II) were found to proceed at similar rates, with the product in every case being derived from insertion through the exo face.