A new synthetic approach to benzoporphyrins and Krohnke 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.

keywords

1,3-DIPOLAR CYCLOADDITION REACTIONS; INTRAMOLECULAR ENERGY-TRANSFER; WEAK CH-ACIDS; TERPYRIDINE COMPLEXES; ELECTRON-TRANSFER; PORPHYRINS; DYADS; RUTHENIUM(II); CHALCONES; FORMYLPORPHYRINS

subject category

Chemistry

authors

Moura, NMM; Faustino, MAF; Neves, MGPMS; Paz, FAA; Silva, AMS; Tome, AC; Cavaleiro, JAS

our authors

acknowledgements

Thanks are due to FCT and FEDER for funding the QOPNA unit (project PEst-C/QUI/UI0062/2011) and the Portuguese National NMR Network, also supported by funds from FCT. We also thank FCT for specific funding towards the purchase of the single-crystal X-ray diffractometer. N. Moura thanks FCT for the PhD grant SFRH/BD/44630/2008.

Share this project:

Related Publications

We use cookies for marketing activities and to offer you a better experience. By clicking “Accept Cookies” you agree with our cookie policy. Read about how we use cookies by clicking "Privacy and Cookie Policy".