Presented is a quick and efficient method for the insertion of first-row transition metal acetates into 5, 10, 15, 20-tetraphenyl porphyrin, utilizing Soxhlet extraction for the removal of the acetic acid by-product. High yields (> 90%) and purity are achieved without requiring chromatographic purification. Basic Mn (III) and Fe (III) acetate may be used, as well as hydrated Co (II), Ni (II), and Cu (II) acetates as starting materials. In the case of Fe, an ...