Organocobalt i complexes with isocycanide ligands

The reaction of isocyanide with electron-rich cyclopentadienyl cobalt(l) complexes has led to the formation of the substitution products 40, 43, and 46, which even at RT underwent oxidative addition to give the compound 41. This study showed that the choice of the isocyanide ligand is important to induce this reaction. The / 7ra-tolylisocyanide did not react by C-N bond cleavage. The complexes formed from the substitution of one phosphine by an isocyanide reacted with diphenyldiazomethane to give the C,C-bound ketenimine complexes 42, and 44. The / -tolylisocyanide 

In order to complete the reactivity of isocyanide in this section, the reactivity of a well-known Co(0) isocyanide cobalt dimer is described. Yamamoto s group has also reported the reactivity of the Co(0) complex, Co2(CNXyl)8, 

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