A. Gomes, Patrícia C. Freire, Catarina Domingos
Dec 2, 2016
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Influential Citations
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Journal
Journal of Porphyrins and Phthalocyanines
Abstract
5,10,15,20-Tetrakis(pentafluorophenyl)porphyrin reacts with primary alkylamines and heterocyclic amines, at 50˚ C and under high pressure (450 MPa), to produce the N-substituted tetraamino derivatives in high yields. Under similar conditions, the reaction with the bulky dibutylamine and dipentylamine affords the corresponding mono-substituted dialkylaminoporphyrins in 10% yield. This new protocol arises as a considerable improvement of the methods already known, which usually require high temperatures and are not effective when using secondary amines having long alkyl groups.