Published in
Elsevier, Tetrahedron Letters, 1(44), p. 157-160, 2003
DOI: 10.1016/s0040-4039(02)02475-9
Wiley-VCH Verlag, ChemInform, 12(34), 2003
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Synthetic Access to 5,10-Disubstituted Porphyrins.
Journal article published in 2003 by
Sabine Hatscher,
Mathias O. Senge 
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Abstract
A simple acid-catalyzed condensation of unsubstituted tripyrranes with pyrrole and various aldehydes affords 5,10-disubstituted-β-unsubstituted porphyrins by the ‘3+1’ approach in low to moderate yields. A complementary synthesis of similar compounds involves reaction of unsubstituted porphyrin (porphine) with organolithium reagents in good yields.