Issue 49, 2012

A new synthetic approach to benzoporphyrins and Kröhnke type porphyrin-2-ylpyridines

Abstract

The reaction of 2-formyl-5,10,15,20-tetraphenylporphyrin with aryl methyl ketones and ammonium acetate, in the presence of La(OTf)3, affords benzoporphyrins and 2-(2,6-diarylpyridin-4-yl)porphyrins. This methodology was used to prepare, for the first time, a 2-(2,2′:6′,2′′-terpyridin-4′-yl)porphyrin. The structures of two 2-(2,6-diarylpyridin-4-yl)porphyrins were confirmed by single-crystal X-ray diffraction.

Graphical abstract: A new synthetic approach to benzoporphyrins and Kröhnke type porphyrin-2-ylpyridines

Supplementary files

Article information

Article type
Communication
Submitted
01 Feb 2012
Accepted
20 Apr 2012
First published
23 Apr 2012

Chem. Commun., 2012,48, 6142-6144

A new synthetic approach to benzoporphyrins and Kröhnke type porphyrin-2-ylpyridines

N. M. M. Moura, M. A. F. Faustino, M. G. P. M. S. Neves, F. A. A. Paz, A. M. S. Silva, A. C. Tomé and J. A. S. Cavaleiro, Chem. Commun., 2012, 48, 6142 DOI: 10.1039/C2CC30727H

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