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.
Reaction of Mn2(CO)10 with R2P(S)P(S)R2 (R=Me, Et, Prn, Bun) in toluene at 120 °C yields binuclear [Mn2(CO)8(μ-PR2)2] and trinuclear [Mn(CO)3(μ-SPR2)]3 complexes. Both result from phosphorus–phosphorus bond scission, while in the former sulfur abstraction has also occurred. An X-ray diffraction study of [Mn2(CO)8(μ-PBun2)2] confirms that the manganese adopts a distorted octahedral geometry with local