Synthesis of corroles, tetradehydrocorrins, and porphyrins from 1,19-di-iodo- and 19-iodo-1-methyl-1,19-dideoxybiladienes-a,c

Abstract

1,19-Di-iodo-1,19-dideoxybiladienes-a,c bearing acetic and propionic acid residues at the β-positions have been prepared for the first time, and transformed into corroles and aza-porphyrins whose substitution pattern corresponds to those of uroporphyrin III and 12-decarboxyuroporphyrin III; nickel tetradehydro-corrins and porphyrins are available from the corre-sponding 1-methyl-19-iodo-compounds.