Synthesis, structure, and absorption spectra of the well-defined 1,1′-bicyclopentadiene derivatives

Article abstract of DOI:10.1016/0040-4039(96)00479-0

The well-defined 1,1′-bicyclopentadiene derivatives have been prepared by an endo-endo mode intramolecular reductive cyclization of a 1,4-diyne using lithium naphthalenide followed by oxidative coupling via a higher order cyanocuprate. The crystal structu