Efficient Synthesis of meso‐Tetraarylporphyrins Using I2 as Catalyst and IBX as Oxidant.

Abstract meso-Tetraarylporphyrins are synthesized from pyrrole and substituted benzaldehydes by a catalytic amount of I2 as catalyst and o-iodoxybenzoic acid (IBX) as oxidant in two steps and one flask. The advantages of this method include the use of inexpensive and easily available catalyst, avoidance of heavy consumption of CH2Cl2, innocuous oxidant, and good yields.