A Strained S similar to C similar to S Ir Pincer Complex: Intramolecular C-H Activation of an Aromatic Ring

作者：Blug Matthias; Heuclin Hadrien; Cantat Thibault; Le Goff Xavier Frederic; Mezailles Nicolas; Le Floch Pascal^*

来源：Organometallics, 2009, 28(6): 1969-1972.

DOI：10.1021/om801164p

Reaction of the bis(diphenylphosphino sulfide)-methanide anion (S similar to C similar to S) with [Ir(cyclooctene)(2)Cl](2) dimer complex affords an 18-VE Ir(III) hydrido complex. DFT calculations suggest that formation of this hydrido species results from the insertion of the highly reactive 16-VE Ir(I) complex [Ir(SCS-)(cyclooctene)] into one of the C-H bonds of'the phenyl group of a pendant phosphino sulfide ligand. The DFT results also point to the easy access to unsaturated intermediates, explaining the experimentally observed facile displacement of the cyclooctene ligand by PPh(3).

• 出版日期2009-3-23