title: Palladium(I)-bridging allyl dimers for the catalytic functionalization of CO2.
abstract: In general, the chemistry of both η(1)-allyl and η(3)-allyl Pd complexes is extremely well understood; η(1)-allyls are nucleophilic and react with electrophiles, whereas η(3)-allyls are electrophilic and react with nucleophiles. In contrast, relatively little is known about the chemistry of metal complexes with bridging allyl ligands. In this work, we describe a more efficient synthetic methodology for the preparation of Pd(I)-bridging allyl dimers and report the first studies of their stoichiometric reactivity. Furthermore, we show that these compounds can activate CO(2) and that an N-heterocyclic carbene-supported dimer is one of the most active and stable catalysts reported to date for the carboxylation of allylstannanes and allylboranes with CO(2).
authors.affiliation: Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States.
authors.forename: Damian P
authors.initials: DP
authors.lastname: Hruszkewycz
authors.forename: Jianguo
authors.initials: J
authors.lastname: Wu
authors.forename: Nilay
authors.initials: N
authors.lastname: Hazari
authors.forename: Christopher D
authors.initials: CD
authors.lastname: Incarvito