Abstract
AbstractSynthesis of porphyrin derivatives in water can be challenging due to the inimical conditions associated with the initial condensation equilibrium. Here in, we report the synthesis of meso‐tetraphenyl porphyrin (H2TPP) in water in presence of phosphotungstic acid (PTA) and its liquid‐derivative with a polyether amine (Jeffamine®). The PTA‐Jeffamine® derivative was found to simultaneously catalyze both the condensation as well as oxidation stages of H2TPP formation. Few other derivatives of H2TPP were synthesized. All the products were characterized by UV‐vis, FTIR and NMR spectroscopy. Singlet oxygen efficiency of the catalytically synthesized H2TPP matched well with that of H2TPP obtained from conventional process. The PTA‐Jeffamine® derivative showed better yield compared to the reaction with pure PTA.
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