
%0 Journal Article
%A Badger, GM 
%A Ward, AD 
%T Porphyrins. II. The synthesis of porphyrins from 2-aminomethylpyrroles
%J Australian Journal of Chemistry
%D 1964/06/01
%V 17
%N 6
%P 649-660
%K 
%R https://doi.org/10.1071/CH9640649
%U https://www.publish.csiro.au/paper/CH9640649 
%X Benzyl 5-formyl-3,4-dimethylpyrrole-2-carboxylate oxime (VI; R = COOCH2Ph) has been reduced and treated with cupric acetate to yield copper octamethylporphin in 20% yield. Copper octaethylporphin was obtained in similar yield from 2-formyl-3,4-diethylpyrrole oxime (VII). The porphyrins are also obtained, in much smaller yield, following acid-catalysed condensation; a by- product formed under these latter conditions is probably a biladiene.   Attempts to prepare meso-substituted porphyrins by similar treatment of the oximes of 2-acetyl- and 2-benzoyl-pyrroles were unsuccessful. 
