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ChemicalBook CAS DataBase List Protoporphyrin IX dimethyl ester
5522-66-7

Protoporphyrin IX dimethyl ester synthesis

8synthesis methods
-

Yield:5522-66-7 79%

Reaction Conditions:

with sulfuric acid in methanol for 12 h;Darkness;

Steps:

3.1. Chlorin derivatives syntheses
The preparation of protoporphyrin IX dimethyl ester (PpIX) (7),described in Scheme 1, began with a process of elimination of twohydroxyl (-OH) groups of hematoporphyrin (Hp) (6). Then, anesterification in the presence of methanol and sulfuric acid (H2SO4)(5%)was performed maintaining the protection fromlight. The finalproduct 7 was obtained after solvent evaporation and a simplecrystallization from CHCl3:MeOH (1:3). Compound 7 was isolatedin 79% yield and characterised by 1H NMR and UV-Vis in order toconfirm its identity and purity.

References:

Linares, Irwin A.P.;de Oliveira, Kleber T.;Perussi, Janice Rodrigues [Dyes and Pigments,2017,vol. 145,p. 518 - 527]

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