
%0 Journal Article
%A Badger, GM 
%A Jones, RA 
%A Laslett, RL 
%T Porphyrins. VIII. A stepwise synthesis of porphyrins
%J Australian Journal of Chemistry
%D 1964/10/01
%V 17
%N 10
%P 1157-1163
%K 
%R https://doi.org/10.1071/CH9641157
%U https://www.publish.csiro.au/paper/CH9641157 
%X 1,2,3,4,5,6,7,8-Octanlethylporphin and &#945;,&#947;,1,2,3,4,5,6,7,8-decamethylporphin have been prepared by the acid-catalysed condensation of 5,5'-diformyl-3,4,3',4'-tetramethylmethanes (VI; R = H or CH3) with the corresponding dicarboxylic acid derivatives (VII), followed by oxidation. For the preparation of meso-substituted porphyrins the method seems to be more satisfactory than those already in the literature, and can be developed further. 
