enzene. Acid fluorides were converted into acylphosphine sulfides and thioesters using diphosphine disulfides and disulfides/triphenylphosphine, respectively. Aryl esters were obtained fromacid fluorides and phenols in the presence of triphenylsilane. Aryl esters, acylphosphine sulfides, and thioesters were also interconverted in the presence of rhodium complexes. These rhodium-catalyzed acyl transfer
Structure and bonding in gold(<scp>I</scp>) compounds. Part 3. Mössbauer spectra of three-co-ordinate complexes
作者:Geoffrey C. H. Jones、Peter G. Jones、Alfred G. Maddock、Martin J. Mays、Pauline A. Vergnano、Alan F. Williams
DOI:10.1039/dt9770001440
日期:——
Mössbauer spectra are reported for a number of gold(I) complexes which might be expected to be three-co-ordinate. The spectral data are related to the possible electronic and geometric structures of these complexes. It is shown that the Mössbauer spectrum provides a useful, although not invariably unambiguous, indication of geometry.
A rhodium-catalyzed exchange reaction of diphosphine disulfides, a diphosphine oxide, and a diphosphine is developed. Various symmetric diphosphine disulfides containing alkyl and phenyl groups are exchanged, giving equilibrium mixtures, from...
Dialkyl(heteroaryl)phosphine sulfides were synthesized by the rhodium‐catalyzed exchange reaction of heteroaryl aryl sulfides and tetraalkyldiphosphine disulfides. The reaction has a broad applicability, giving diverse dialkyl(heteroaryl)phosphine sulfides containing five‐ and six‐membered heteroaryl groups. Various dialkyl(heteroaryl)phosphines were obtained by desulfurization.
Metal-catalyzed phosphinyl ester forming reaction of alcohols and phenols with diphosphine disulfides and a dioxide
作者:Mieko Arisawa、Masahiko Yamaguchi
DOI:10.1016/j.tetlet.2010.07.040
日期:2010.9
the dialkylphosphinothioation reaction of alcohols and phenols with tetraalkyldiphosphine disulfides in high yields. Phenols were reacted in the presence of RhH(PPh3)4 and 1,2-bis(dimethylphosphino)ethane under THF reflux, and alcohols with Pd(OAc)2 and 1,2-bis(diphenylphosphino)benzene under chlorobenzene reflux. Primary alcohols reacted faster than secondary alcohols under these conditions, and protected