Novel carbon-carbon bond formation induced by depalladation of organometallic compounds

Article abstract of DOI:10.1016/0022-328X(89)85220-9

Two internal alkynes undergo insertion at 20 deg C into the Pd-C bond of the cyclopalladated derivative of dimethylaminomethylferrocene to give new organometallic compounds.When the reaction with diphenylacetylene is performed at higher temperatures, depalladation occurs readily to give six- and seven-membered ortho-fused rings through new annulation reactions of phenyl groups, formation of one of these involving also the cleavage of a C-N bond.