Coupling of Internal Alkynes in Tp<sup>Me2</sup>Ir Derivatives: Selective Oxidation of a Noncoordinated Double Bond of the Resulting Iridacycloheptatrienes
作者:Eleuterio Álvarez、Margarita Gómez、Margarita Paneque、Cristina M. Posadas、Manuel L. Poveda、Nuria Rendón、Laura L. Santos、Susana Rojas-Lima、Verónica Salazar、Kurt Mereiter、Caridad Ruiz
DOI:10.1021/ja0290375
日期:2003.2.1
The reaction of different Tp(Me2)Ir derivatives and dimethylacetylene dicarboxylate (DMAD) allows the preparation of three different metallacycloheptatriene complexes and an unusual allyl-terminated metallacycle. The C atoms of distant C=C bonds in the metallacycles, including aromatic ones, can be converted selectively to the corresponding keto functionality under mild conditions.