Two unique organometallic halide series (Ph3P)Au(4-Me-C6H4)(CF3)(X) and (Cy3P)Au(4-F-C6H4)(CF3)(X) (X = I, Br, Cl, F) have been synthesized. The PPh3-supported complexes can undergo both C(aryl)-X and C(aryl)-CF3 reductive elimination. Mechanistic studies of thermolysis at 122 °C reveal a dramatic reactivity and kinetic selectivity dependence on halide ligand. For X = I or F, zero-order kinetic...

A range of twelve stabilised phosphonium ylides containing tetrahydrofuran, tetrahydropyran or 2,2-dimethyl-1,3-dioxolane rings have been prepared and fully characterised, including one X-ray structure determination of each type. The X-ray structures confirm the P=C and C=O functions to be syn and all the compounds undergo thermal extrusion of Ph3PO to give the corresponding alkynes. In some ca...

The palladium-catalyzed dimerization of isoprene is a practical approach of synthesizing monoterpenes. Though several highly selective methods have been reported, most of them still required pressure or costly ligands for attaining the active system and desired selectivity. Herein, we present a simple and economical procedure towards the tail-to-tail dimer using readily available Pd(OAc)2 and i...

Diand trithiocarbonate complexes of palladium(II) have been prepared by the action of 0 2 or Ss on PdL2(?72-CS2) in the presence of excess L (L = phosphine ligand). 31P NMR data for Pd(PPh3)2(CS20) are consistent with the presence in solution of both S,S and S,Q coordinated dithiocarbonate. An X-ray crystal structure of the dichloromethane solvate [PI , a = 1103.6(4), b = 1343.4(5), c = 1368.5(...

Rh2P nanoparticles (NPs) have been identified as suitable mimics of [RhI(Ph3P)3]+, the benchmark homogeneous catalysts in liquid-phase hydroformylation. For this reason, a fitted synthetic strategy is required to develop based exclusively on NPs. To attain this, two pathways devised. In first one, separate sources Rh and P were used. second Wilkinson complex was employed unique source probe pos...

The title compound, [Cu(C5H5NO2S2)(C18H15P)2]·CHCl3, features a tetra-hedrally coordinated CuI atom within a P2S2 donor set defined by two phosphane P atoms and by two S atoms derived from a symmetrically coordinating di-thio-carbamate ligand. Both intra- and inter-molecular hy-droxy-O-H⋯O(hydroxy) hydrogen bonding is observed: the former closes an eight-membered {⋯HOC2NC2O} ring, whereas the l...