Department of Chemistry, Purdue University, 560 Oval Dr., Lafayette, IN 47907, USA
Abstract:
Dinickel complexes promote stoichiometric Pauson–Khand reactions of enynes and CO (g). However, catalytic turnover is precluded by the strong binding of CO to the Ni2 active site. This article describes the use of M(CO)x reagents as stoichiometric CO precursors in Ni2-catalyzed carbonylation reactions. As part of these studies, well-defined heterotrinuclear Ni2Fe, Ni2Co, and Ni2Mn carbonyl clusters are synthesized using the NDI]Ni2 platform as a template (NDI = naphthyridine–diimine).