title: Palladium catalyzed heck arylation of 2,3-dihydrofuran-effect of the palladium precursor.
abstract: Heck arylation of 2,3-dihydrofuran with iodobenzene was carried out in systems consisting of different palladium precursors (Pd2(dba)3, Pd(acac)2, PdCl2(cod), [PdCl(allyl)]2, PdCl2(PhCN)2, PdCl2(PPh3)2) and ionic liquids (CILs) with L-prolinate or L-lactate anions. All the tested CILs caused remarkable increases of the conversion values and in all of the reactions 2-phenyl-2,3-dihydrofuran (3) was obtained as the main product with a yield of up to 59.2%. The highest conversions of iodobenzene were achieved for the [PdCl(allyl)]2 precursor. Formation of Pd(0) nanoparticles, representing the resting state of the catalyst, was evidenced by TEM.
authors.affiliation: Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., 50-383 Wrocław, Poland.
authors.forename: Adam
authors.initials: A
authors.lastname: Morel
authors.affiliation: Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., 50-383 Wrocław, Poland. anna.trzeciak@chem.uni.wroc.pl.
authors.forename: Anna M
authors.initials: AM
authors.lastname: Trzeciak
authors.affiliation: Department of Chemical Technology, Poznań University of Technology, pl. M. Skłodowskiej-Curie 2, 60-965 Poznań, Poland.
authors.forename: Juliusz
authors.initials: J
authors.lastname: Pernak
mesh_terms: D005663:Furans / Q000737:chemistry*; D052578:Ionic Liquids / Q000737:chemistry; D015394:Molecular Structure; D053758:Nanoparticles / Q000737:chemistry / Q000648:ultrastructure; D009942:Organometallic Compounds / Q000737:chemistry; D010165:Palladium / Q000737:chemistry*
chemical_list: D005663:Furans; D052578:Ionic Liquids; D009942:Organometallic Compounds; C073812:2,3-dihydrofuran; D010165:Palladium; C008756:palladium chloride