complex [Cp*Mo(CO)3}2(μ-P2Cl3)][AlCl4] (2), which is formed via a Lewis-acid assisted nucleophilic substitution reaction, and not via a chlorophosphinidene intermediate. A similar reaction with external nucleophile PPh3 leads to [Cp*Mo(CO)3(P(Cl)PPh3)][AlCl4] (3), which can be viewed as a phosphine coordinated chlorophosphinidene complex. Addition of two equivalents each of PPh3 and AlCl3 leads a
所述dichlorophosphido络合物的反应的[Cp *的Mo(CO)3(PCL 2)](1)用的AlCl 3所导致双
金属桥接P 2
氯3络合物[的Cp *的Mo(CO)3 } 2(μ-P 2 Cl 3 ]] [AlCl 4 ](2),其通过
路易斯酸辅助的亲核取代反应形成,而不是通过
氯代
亚膦酸酯中间体形成。与外部亲核试剂PPh 3的类似反应导致[Cp * Mo(CO)3(P(Cl)PPh 3)] [AlCl 4 ](3),可以将其视为膦配位的
氯次亚膦配合物。PPh 3和AlCl 3各自添加两个当量会导致
氯化物双取代,并形成已知的三phosph盐[Ph 3 PPPPh 3 ] [AlCl 4 ]。在该反应中,二
氯磷酸酯络合物有效地充当了P +的来源。1与醇盐的反应生成烷氧基
磷酰基络合物[Cp * Mo(CO)3 P(OR)Cl}](R =对
叔丁基苯氧基,薄荷醇)。这些络合物可作为瞬态烷氧基
次膦酸酯[Cp