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Synthesis of the Ligand (Z)-2-(3-Methoxyphenylamino)-4-Oxo-4-Phenylbut-2-Enoic Acid and Its Antifungal Activity Against the Wood Stain Fungi Mucor Plumbeus

“…The IR spectrum of L exhibits bands at 3220 and 1604 cm -1 for the NH and CO stretching modes, respectively. The ligand conjugate system undergoes a tautomeric equilibrium (keto-enol//imineenamine) as is reported in other similar systems [19][20][21][22] , showed in the scheme 3 and 4.…”

Photochromic properties of 2-(N-acetyl-N-arylaminomethylene)benzo[b]furan-, thiophene-, selenophene- and tellurophene-3(2H)-ones

“…1 Modification of the N-acylketoenamines 2 structure imparts to them the properties of molecular switches, 2,4 photochromic pH-sensors 5 and chemosensors for metal cations. 2,6 However the photochemical properties of N-arylketoenamines 1-3 significantly depend on the heteroatom X: the irradiation of benzo …”

Synthesis, photo- and ionochromic properties of indolyl(thienyl)maleimides with phenanthroline receptor

“…Photochromic compounds that switch between isomeric states under irradiation with light of a certain wavelength are extensively studied. [1][2][3][4][5][6][7] Spirocyclic compounds, [8][9][10] fulgides and fulgimides, [11][12][13] dihetarylethenes, 14,15 photochromic heterocyclic ketoenamines 16,17 and norbornadienes 18,19 are of particular interest due to their potential industrial applications, including design of materials for molecular electronics, rewritable optical memory, photo optical commutation, organic displays, photo-pharmacology, biological data visualization, chemo-and biosensors. Chemical modification of photochromic molecules with ionochromic substituents opens new possibilities to create of photo controllable chemosensors in which the coordination and release of ions is modulated with light of different wavelengths.…”

“…6,20 In previous studies, we described the synthesis and investigation of a series of photochromic heterocyclic maleimides, including those capable of detecting cations and anions. 16,21,22 Herein, we report the synthesis of maleimides containing phenanthroline a receptor group in the bridged pyrrole-2,5-dione moiety and investigation of their photochromic, fluorescent and chemosensor properties. The choice of the phenanthroline as the ligand fragment is due to its significant chemosensor activity towards cations.…”