Unprecedented rearrangement of phosphino alkynes Ph2P(CCR)(R = Ph, Me) into bridging vinyl phosphido ligands PhP(CRCPhH) during the reaction with [PPh4][HFe3(CO)11]

Abstract

The reaction of Ph₂P(CCR)(R = Ph, Me) with [PPh₄][HFe₃(CO)₁₁] at 58 °C (R = Me) or 102 °C (R = Ph) leads to the formation of [PPh₄][Fe₃(CO)₉(µ₃-PhPCRCPhH)], the X-ray crystal structure of which has been determined for R = Me.