Acid–base equilibria and coordination chemistry of the 5,10,15,20-tetraalkyl-porphyrins: implications for metalloporphyrin synthesis

Abstract

Easy formation of metalloporphyrins from the doubly deprotonated porphyrin P2− is reported.

Synthesis and Acid-base Properties of Isomeric Tetrachlorooctabromo- and Tetrabromooctachlorotetraphenylporphyrins

“…The pH -lgC HClO4 dependence was established earlier, [27][28][29][30][31] using previously received spectropotentiometric research data of glass electrode PH function to AN and temperature calibration of the electrode system -silver chloride electrode, filled with Et 4 NCl solution, saturated at 293 K for m-nitroaniline (pK a =7.6). [27][28][29][30] (Figure 7).…”

meso-Tetrahexyl-7,8-dihydroxychlorin and Its Conversion to ß-Modified Derivatives

“…The regiochemistry and other mechanistic aspects of this reaction are well understood [25,26]. Importantly, the diol functionality in the dihydroxychlorins can be used as a synthetic Curiously, the chemistry of meso-alkylporphyrins (5) (Figure 1), although known for decades [31][32][33], has been far less studied, by a wide margin, compared to that of their βalkyl-or meso-aryl analogues [34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50]. meso-Alkyl-porphyrins have also not been, outside of the patent literature [51,52], converted to chlorins.…”

Spectral and Acid-Base Properties of Tetra-Meso-Alkyl-and Tetra-Meso-Phenyl Substituted Derivatives of Porphyrin

“…Также возрастает интерес к порфиринам как к потенциальным лиотропным и термотропным дискотическим мезогенам, поскольку жидкие кристаллы (ЖК) на их основе могут быть использованы для получения наноструктурированных материалов. Многообразие полезных свойств порфиринов и их аналогов связано с особенностями их строения [2][3][4][5][6][7][8][9][10][11][12][13][14]. Введение заместителей различной природы дает возможность варьирования физико-химическими свойствами соединений класса порфиринов в широких пределах [8][9][10][11][12][13][14].…”