Abstract
Novel cyclobutadiene cobalt complex with labile naphthalene ligand [(C 4 Et 4 )Co(C 10 H 8 )]PF 6 catalyzes the insertion of ethyl diazoacetate into X–H bonds giving the corresponding products in 15–75% yields. The reaction proceeds with primary and secondary aliphatic amines, hydrosilanes and triethylamine borane but not with anilines and alcohols.
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