Porphyrins. 20. Interaction of 2-formyl-5,10,15,20-tetraphenylporphyrin with ch acids

The reactions of 2-formyl-5,10,15-20-tetraphenylporphyrin (Ia) with nitromethane and of its Cu complex (Ib) with nitromethane, malonic acid, and its esters have been investigated. On interacting porphyrins (Ia,b) with nitromethane in AcOH/BuNH₂ the 2-(2-nitrovinyl)porphyrins (IIa,b) were formed, in liquid NH₃ the nitroalcohols (IIIa,b) were formed, and in DMF/BuNH₂ the dinitro derivatives (IVa,b) were formed. The interaction of porphyrin (Ib) with malonic acid and its esters led to the corresponding condensation products in high yield.For Communication 19 see [1].Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 936–940, July, 1985.