Formation of Iridabenzenes by Coupling of Iridacyclopentadienes and Alkenes

4 páginas, figuras.A new synthesis of iridabenzene species involves the coupling of MeCH-CH2 with iridacycles 1 and 2. Surprisingly, the structure of the coupling product of the iridacyclopentadienes with propene (3 or 4) is highly susceptible to the nature of the substituents in the starting metallacycle.Financial support from the Spanish Ministerio de Educación y Ciencia (MEC; Projects BQU2001–1995 and CTQ2004-00409/BQU, FEDER support), from the Junta de Andalucía, and from the EU COST Action WG-D17-003 are gratefully acknowledged. N.R. thanks the MEC for a grant.Peer reviewe