Journal of the American Chemical Society, Vol.121, No.48, 11257-11258, 1999
Synthesis of [28]heptaphyrin(1.0.0.1.0.0.0) and [32]octaphyrin(1.0.0.0.1.0.0.0) via a directed oxidative ring closure: The first expanded porphyrins containing a quaterpyrrole subunit