posted on 2009-09-03, 00:00authored byMarcin Stȩpień, Bartosz Szyszko, Lechosław Latos-Grażyński
The use of 1,4-phenylene-containing tripyrrane analogs provides a general route to expanded p-benziporphyrins. The course of macrocyclization shows a striking dependence on the steric bulk of meso substituents.