Novel applications of hypervalent iodine: PIFA mediated synthesis of benzo[ c ]phenanthiridines and benzo[ c ]phenanthridinones
作者:Isabel Moreno、Imanol Tellitu、Jesús Etayo、Raúl SanMartı́n、Esther Domı́nguez
DOI:10.1016/s0040-4020(01)00459-8
日期:2001.6
A short and efficient access to benzo[c]phenanthridines and phenanthridinones is achieved by the action of phenyliodine(III)-bis(trifluoroacetate) (PIFA) on properly substituted benzylnaphthylamines and naphthylbenzamides, respectively. This reagent promotes a non-phenolic oxidative biaryl coupling process, the key step of the synthesis. A study of the electronic and steric requirements of the substrates
通过苯碘(III)-双(三氟乙酸)酯(PIFA)分别作用于适当取代的苄基萘胺和萘并苯甲酰胺上,可以短而有效地获得苯并[ c ]菲啶和菲啶酮。该试剂促进了非酚氧化联芳基的偶联过程,这是合成的关键步骤。由于在某些情况下,二聚化过程优于分子内环化作用,因此需要对底物的电子和空间要求进行研究。机械建议也包括在内。