Low‐Temperature Isolation of the Bicyclic Phosphinophosphonium Salt [Mes*2P4Cl][GaCl4]
作者： Jonas Bresien , Kirill Faust , Axel Schulz , Alexander Villinger
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摘要: The reaction of [ClP(μ-PMes*)]2 (1) with the Lewis acid GaCl3 yielded a hitherto unknown tetraphosphabicyclo[1.1.0]butan-2-ium salt, [Mes*P4(Cl)Mes*][GaCl4] (3[GaCl4]), which incorporates positively charged phosphonium center within its bicyclic P4 scaffold. formation title compound was studied by means low-temperature NMR experiments. This led to identification an intermediate cyclotetraphosphenium cation, trapped dimethylbutadiene (dmb). All compounds were fully characterized experimental and computational methods.
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