Meso-tetrakis(2-chloro-3-quinolyl)porphyrin was prpared by reacting 2-chloro-3-quinolinecarboxaldehyde with pyrrole (1:1 molar ratio) in refluxing propionic acid for 45 - 60 minutes.The water-soluble derivative was prepared by dissolving 0.50 g of the parent porphyrin in 10 mL of concentrated sulfuric acid followed by neutralization with 6 M NaOH. The reaction mixture was completely evaporated to dryness and the crude product was purified  by soxhlet extraction using methanol. Complete evaporation of the eluent afforded the pure porphyrin (95% yield). UV-Vis spectral analysis shows absorbance maxima of the parent porphyrin at 428 (Soret), 518, 551,591, 653 nm while the water-soluble derivative shows absorbance maxima at 423 (Soret),  519, 582, 650 nm.

Meso-tetrakis(2-chloro-3quinolyl)porphyrin and its water-soluble derivative meso-tetrakis(2-chloro-4-sulfonato-3-quinolyl)porphyrin

253rd National Meeting (2017)

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