Reductive decomplexation of biscobalthexacarbonyl acetylenes into olefins

Article abstract of DOI:10.1016/S0040-4039(98)00281-0

The decomplexation of acetylene biscobalthexacarbonyl complexes can usually be achieved under oxidative condition. We had found other reductive conditions with endo-cyclic complexes, and recently other reductive conditions with both endo- and exo-cyclic complexes using either tributyltin hydride or triethylsilane. The original acetylene derivatives were transformed selectively either into the corresponding cis olefins or cis- vinylsilanes.