The Reaction of Carbon Dioxide with Palladium Allyl Bonds.

ABSTRACT: A family of palladium allyl complexes of the type bis(2-methylallyl)Pd(L) (L = PMe(3) (1), PEt(3) (2), PPh(3) (3) or NHC (4); NHC = 1,3-Bis(2,6-diisopropylphenyl)-1,3-dihydro-2H-imidazol-2-ylidene) have been prepared through the reaction of bis(2-methylallyl)Pd with the appropriate free ligand. Compounds 1-4 contain one η(1) and one η(3)-2-methylallyl ligand and 3 was characterized by X-ray crystallography. These complexes react rapidly with CO(2) at low temperature to form well defined unidentate palladium carboxylates of the type (η(3)-2-methylallyl)Pd(OC(O)C(4)H(7))(L) (L = PMe(3) (6), PEt(3) (7), PPh(3) (8) or NHC (9). The structure of 9 was elucidated using X-ray crystallography. The mechanism of the reaction of 1-4 with CO(2) was probed using a combination of experimental and theoret

SUBMITTER: Wu J 

PROVIDER: S-EPMC3016057 | biostudies-literature | 2010 Nov

REPOSITORIES: biostudies-literature