Mild and Selective H/D Exchange at the β Position of Aromatic α-Olefins by N-Heterocyclic Carbene-Hydride-Rhodium Catalysts
作者:Andrea Di Giuseppe、Ricardo Castarlenas、Jesús J. Pérez-Torrente、Fernando J. Lahoz、Victor Polo、Luis A. Oro
DOI:10.1002/anie.201007238
日期:2011.4.18
Pacman bites selectively! Stable rhodium(III)–N‐heterocyclic carbene–hydride complexes (Pacman‐like catalysts) are highly active and selective catalysts for H/D exchange at the β position of aromatic α‐olefins (see picture). The interplay between bulky N‐heterocycliccarbene and quinolinate ligands determines the size of the steric window responsible for this selectivity.