Direct Synthesis of Magnesium Porphine via 1-Formyldipyrromethane
作者:Dilek Kiper Dogutan、Marcin Ptaszek、Jonathan S. Lindsey
DOI:10.1021/jo070532z
日期:2007.6.1
The reaction of 1-formyldipyrromethane (100 mM) in toluene at 115 °C containing DBU (10 mol equiv) and MgBr2 (3 mol equiv) in the presence of air affords the magnesiumchelate Mg(II) porphine in 30−40% yield. The advantages of the new method include simplicity, high concentration, chromatography-free purification, gram-scale synthesis, and avoidance of the poorly soluble free base porphine. Mg(II)