Reaction of Ar*PPNR2(Ar*= 2,4,6-But3C6H2) with CF3SO3H in the presence of triphenylphosphane in CH2Cl2produces the isolable salt [Ar*PP(PPh3)]+[CF3SO3]– which is characterized by X-ray crystallography; the triphenylphosphane ligand of [Ar*PP(PPh3)]+ readily participates in nucleophilic substitution reactions affording a novel entry to donor-stabilized phosphanetriylphosphonium cations and P-functionalized diphosphenes.
在
三苯基膦存在下,Ar*P
PNR2(Ar*= 2,4,6-But3C6H2)与 CF3SO3H 在
CH2Cl2 中发生反应,生成了可分离的盐 [Ar*PP(PPh3)]+[CF3SO3]-,并通过 X 射线晶体学对其进行了表征;Ar*PP(PPh3)]+的三苯基
膦配体很容易参与亲核置换反应,为供体稳定的膦三基膦阳离子和 P 官能化二
磷酸盐提供了新的切入点。