Sulfonamide-substituted iron phthalocyanine: design, solubility range, stability and oxidation of olefins

Abstract

4-tert-Butylbenzenesulfonamide was used as a substituent of tetra peripherally substituted Fe(ii) phthalocyanine, taking into account several parameters crucial for the design of potential oxidation catalysts such as solubility and stability. The resulting phthalocyanine exhibits a remarkable stability under oxidative conditions. The main product of the oxidation of cyclohexene using H2O2 as the oxidant is the allylic ketone, 2-cyclohexen-1-one. Styrene oxidation led mainly to the formation of benzaldehyde.

Physicochemical Properties and Catalytic Applications of Iron Porphyrazines and Phthalocyanines

“…In all experiments monitored by the UV-Vis spectra, the degradation of the catalysts, manifested by a decrease of their Q-band absorption, was observed. However, in most cases, the catalytic processes proceeded, even after catalyst degradation, which can indicate the influence of other oxidation mechanisms, for example, Fenton reaction [63][64][65][66].…”