Synthesis of (η-cyclopentadienyl)(trimethylphosphine)tungsten derivatives and related chemistry

Abstract

New or improved syntheses of the compounds [W(η-C₅H₅)(PMe₃)₂H₃], [W(η-C₅H₆)(PMe₃)₃H₂], [W(η-C₅H₅)(PMe₃)₃H₂][BF₄], [W(η-C₅H₅)(PMe₃)₃H], [W(η-C₅H₅)(PMe₃)H₅], [W(η-C₅H₄Et)(PMe₃)H₅], [W(η-C₅H₅)(η²-C₅H₈)(PMe₃)₂H], [W(η-C₅H₄Et)H₂], [W(η-C₅H₅)(η-C₅H₄Et)Cl₂], [W(η-1,3-C₆H₈)(PMe₃)₃H₂], and [W(η⁴-C₅H₅-exo-CHPh₂)(PMe₃)₃H₂] are described. N.m.r. studies on [W(PMe₃)₅H (D)] show that the HD moiety is not present as an η²-HD ligand.