Interaction of Benzene-1,2-diamines with Isocyanide: Mechanism

Interaction of Benzene-1,2-diamines with Isocyanide Complexes of Palladium(II): Insight into the Mechanism



Full Text Inorganica Chimica Acta 2017, 455, 607–612




In pursuit of our studies we have observed that 4,5-dimethylbenzene-1,2-diamine  is significantly more reactive than 4-toluidine in the Pd(II)-mediated coupling with isocyanides. We established that the reason for such enhanced reactivity is a stepwise mechanism of the coupling for 4,5-dimethylbenzene-1,2-diamine that includes an intramolecular nucleophilic attack on the coordinated isocyanide. Reaction of 4,5-dimethylbenzene-1,2-diamine with palladium-iscocyanides led to the first mixed bis(diaminocarbene) complex containing two different diaminocarbene ligands.


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