Citation

Clezy PS , Fookes CJR Sternhell S (1978) The chemistry of pyrrolic compounds. XL. A new synthesis of protoporphyrins III and XIII and a ¹H N.M.R. study of the preferred pathway of electron delocalization in the porphyrin macrocycle. Australian Journal of Chemistry 31, 639-648.

https://doi.org/10.1071/CH9780639