The chemistry of corroles is still an open field of investigation able to deliver new and unexpected results especially when they a peculiar reactivity, different from the parent porphyrins. The genesis of corrole is derived from the Johnson attempt to elaborate a synthetic route for the preparation vitamin B12 and the corrole name is due to the molecular skeleton of this macrocycle, similar to that of the corrin nucleus. The interest on this macrocycle has been boosted by the definition of synthetic routes for the preparation of 5,10,15-triarylcorroles, which make facile to prepare and consequently investigated the chemistry of this macrocycle. As a consequence, the chemistry of b-octaalkylcorroles has been shadowed by the expansion of the triaryl congeners. However, the chemistry of these two types of corrole show some interesting differences and in this contribution we want to show some examples of this different behavior.
