Steric and electronic effects on acetate-assisted cyclometallation of 2-phenylpyridines at [MCl<sub>2</sub>Cp*]<sub>2</sub> (M = Ir, Rh)
作者:David L. Davies、Kuldip Singh、Neringa Tamosiunaite
DOI:10.1039/c9dt04581c
日期:——
The reactions of substituted 2-phenylpyridines at [MCl2Cp*]2 dimers (M = Ir, Rh) in the presence of NaOAc form cyclometallated complexes Cp*M(Phpyr)Cl. H/D exchange experiments and substrate competition experiments show that kinetic selectivity favours electron donating substituents whilst substrates with electron withdrawing substituents are favoured thermodynamically. Experiments with Ir are mostly