
%0 Journal Article
%A Clezy, PS 
%A Nichol, AW 
%T Chemistry of pyrrolic compounds. I. Synthesis of oxyporphyrins
%J Australian Journal of Chemistry
%D 1965/11/01
%V 18
%N 11
%P 1835-1845
%K 
%R https://doi.org/10.1071/CH9651835
%U https://www.publish.csiro.au/paper/CH9651835 
%X The condensation of 5,5'-diformyl-3,4,3',4'-tetramethyl-2,2'-dipyrrylketone (XIb) with 3,4,3',4'-tetramethyl-2,2'-dipyrrylmethae (XIVb) has produced meso-oxy-l,2,3,4,5,6,7,8-octamethylporphin in 63% yield. The tautomeric structure of this compound is discussed and its spectroscopic properties compared with an early intermediate in the oxidative breakdown of haemoglobin to give bile pigment. 
