title: Solid-supported cross-coupling catalysts derived from homogeneous nickel and palladium coordination complexes.
abstract: Solid-supported catalysts derived from homogeneous nickel(II) and palladium(II) non-symmetrical salen-type coordination complexes have been prepared and shown to be effective in the heterogeneous catalysis of carbon-carbon cross-coupling reactions. The nickel catalyst has been used in room-temperature Tamao-Kumada-Corriu reactions and the palladium catalyst in the Heck reaction at elevated temperatures. The complexes were prepared by improved methods and characterised by spectroscopic techniques. Comparisons between the solid-supported catalysts and their homogeneous analogues are reported. The single-crystal structure determination of the nickel and palladium complexes [M(salenac-OH)][M = Ni, Pd; salenac-OH = 9-(2',4'-dihydroxyphenyl)-5,8-diaza-4-methylnona-2,4,8-trienato](2-)] is reported.
authors.affiliation: Department of Chemical and Process Engineering, The University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK.
authors.forename: Nam T S
authors.initials: NT
authors.lastname: Phan
authors.forename: David H
authors.initials: DH
authors.lastname: Brown
authors.forename: Harry
authors.initials: H
authors.lastname: Adams
authors.forename: Sharon E
authors.initials: SE
authors.lastname: Spey
authors.forename: Peter
authors.initials: P
authors.lastname: Styring