
%0 Journal Article
%A Arnold, DP 
%T Synthetic Hydrophilic Porphyrins. Preparations and Spectra of Alkoxycarbonylmethyl and Carboxymethyl Pyridinium Porphyrins
%J Australian Journal of Chemistry
%D 1989/12/01
%V 42
%N 12
%P 2265-2274
%K 
%R https://doi.org/10.1071/CH9892265
%U https://www.publish.csiro.au/paper/CH9892265 
%X The preparation and spectroscopic properties of a quaternary pyridinium porphyrin containing ethoxycarbonylmethyl groups are described. Partial saponification of the ester groups yields a series of mixed ester/carboxylate salts which show evidence of strong intermolecular association in aqueous solution. The fully saponified tetracarboxylate inner salt was prepared in high yield and has properties which conflict with a previous report. 
