The use of bulky �-diketiminate ligands has facilitated the synthesis of compounds featuring cobalt centers in unusual oxidation states and coordination numbers. In particular, it is possible to isolate a cobalt(I) complex that is supported by a single �-diketiminate, a 'masked two-coordinate' species.1 This species is highly reactive, as demonstrated through the activation of C-F bonds.1,2This presentation will discuss the reactivity of this cobalt(I) complex toward diazoalkanes. A number of diazoalkane coordination complexes have been synthesized, and an unusual N-N bond cleaving process will be discussed.(1) Dugan, T. R.; Sun, X.; Rybak-Akimova, E. V; Olatunji-Ojo, O.; Cundari, T. R.; Holland, P. L. J. Am. Chem. Soc. 2011  , 133, 12418�12421.(2) Dugan, T. R.; Goldberg, J. M.; Brennessel, W. W.; Holland, P. L. Organometallics 2012  , 31, 1349�1360.

Synthesis and reactivity of cobalt diazoalkane complexes

248th National Meeting (2014)

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