The recently developed Gross's method for the synthesis of corroles has been modified and
successfully applied to the preparation of new free base tris-aryl-and tris-pyrimidyl-corroles
using solvent-free conditions and microwave irradiation. Compared to conventional heating,
the microwave technique afforded an increase in corrole yields of ca. 30% and led to
noticeably cleaner reaction mixtures. It is demonstrated that short reaction times and high
temperatures are required to afford optimum yields.