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Selective synthesis of monoaryl substituted porphyrins
Author(s) -
Robinsohn Adriana E.,
Buldain Graciela Y.
Publication year - 1995
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570320526
Subject(s) - chemistry , benzaldehyde , condensation , organic chemistry , condensation reaction , catalysis , physics , thermodynamics
A synthetic route to meso‐monoarylporphyrins using a MacDonald‐type 2 + 2 condensation is described. In this method a bisformyl substituted dipyrrylmethane is treated with a biscarboxydipyrrylmethane. The 5‐aryldipyrrylmethanes 15, 25 and 27 were obtained by condensation of the corresponding pyrroles 18, 28 and 29 respectively with benzaldehyde in presence of p ‐toluenesulfonic acid.