Cyclic <i>C</i>-Amino Phosphorus Ylides as a Source of Bidentate Heteroditopic Ligands (Phosphine/Aminocarbene) for Transition Metals

In contrast with most of their congeners, acyclic and cyclic C-amino phosphorus ylides behave as genuine carbene and phosphine transfer agents for transition metal centers. They allow the facile synthesis of a variety of metal complexes that feature heteroditopic ligands, such as 1,6-(phosphine)(aminocarbene) systems with a biphenyl backbone.与绝大多数同类化合物不同，无环与环型C-氨基磷叶立德(C-amino phosphorus ylides)可作为真正的卡宾(carbene)与膦(phosphine)转移试剂，作用于过渡金属中心(transition metal centers)。这类试剂能够简便合成一系列带有异双齿配体(heteroditopic ligands)的金属配合物，例如以联苯(biphenyl)为骨架的1,6-(膦)(氨基卡宾)类体系。