Synthesis of a novel non-symmetric Pd(II) phosphinito-thiophosphinito PSCOP pincer compound

Article abstract of DOI:10.1016/j.ica.2010.02.003

The reaction of 3-mercaptophenol with diphenylchlorophosphine in a 1:2 ratio in the presence of NEt₃ as base, affords cleanly the non-symmetric ligand [C₆H₄-1-(SPPh₂)-3-(OPPh₂)] (1). The direct reaction of this ligand with PdCl₂ in refluxing toluene affords the non-symmetric phosphinito-thiophosphinito PSCOP pincer complex [PdCl{C₆H₃-2-(SPPh₂)-6- (OPPh₂)}] (2).