
%0 Journal Article
%A Clezy, PS 
%A Diakiw, V 
%T Chemistry of pyrrolic compounds. XXX. An approach to the synthesis of porphyrin a
%J Australian Journal of Chemistry
%D 1975/12/01
%V 28
%N 12
%P 2703-2725
%K 
%R https://doi.org/10.1071/CH9752703
%U https://www.publish.csiro.au/paper/CH9752703 
%X Synthesis of the porphyrin (1e) has been achieved by the oxidative cyclization of an appropriately substituted 1,19-dideoxy-1,19- dimethylbilene-b. It is hoped to use this tetrapyrrole to complete the synthesis of porphyrin a, the prosthetic group of cytochrome oxidase. New syntheses of Spirographis porphyrin and its isomer are reported. 2,4-Diacetyl- and 4-acetyl-2-methoxycarbonyl-deutero-porphyrin IX dimethyl ester have been prepared through bilene-b intermediates constructed in the ?east-west? rather than the ?north-south? mode. 
