title: Allenes as carbon nucleophiles in palladium-catalyzed reactions: observation of anti attack of allenes on (pi-allyl)palladium complexes.
abstract: In the palladium-catalyzed cyclization of allenic allylic esters using Pd(dba)2 as catalyst, it was shown that the allene acts as a carbon nucleophile. Intermediates were isolated and stereochemical studies established that the double bond of the allene has attacked the (pi-allyl)palladium intermediate on the face opposite to that of palladium.
authors.affiliation: Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden.
authors.forename: Johan
authors.initials: J
authors.lastname: Franzén
authors.forename: Joakim
authors.initials: J
authors.lastname: Löfstedt
authors.forename: Ismet
authors.initials: I
authors.lastname: Dorange
authors.forename: Jan-E
authors.initials: JE
authors.lastname: Bäckvall