| Abstract
| - The reaction of 1-formyldipyrromethane (100 mM) in tolueneat 115 °C containing DBU (10 mol equiv) and MgBr2 (3mol equiv) in the presence of air affords the magnesiumchelate Mg(II) porphine in 30−40% yield. The advantagesof the new method include simplicity, high concentration,chromatography-free purification, gram-scale synthesis, andavoidance of the poorly soluble free base porphine. Mg(II)porphine exhibits good solubility in common organic solventsand is a valuable core scaffold for derivatization.
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