3 documents found, page 1 of 1
Exploring the reactivity of formylporphyrins with 3-(diethylamino)phenol. Synth...
Queirós, Carla; Leite, Andreia; Moura, Nuno M.M.; Cerqueira, Ana F.R.; Serra, Vanda V.; Neves, Maria G.P.M.S.; Tomé, Augusto C.; Silva, Ana M.G.The design of novel molecular structures with tunable photophysical properties is an important research field for many applications including optoelectronics, sensing and bioimaging. Porphyrin and rhodamine/rosamine derivatives are among the most studied and relevant chemosensors and imaging probes due to their attractive photophysical properties, such as high absorption coefficients and long emission wavelengt...
New hydrophilic 3-hydroxy-4-pyridinone chelators with ether-derived substituent...
Moniz, Tânia; Cunha-Silva, Luís; Mesquita, Raquel B.R.; Miranda, Joana L.A.; Silva, André M.N.; Silva, Ana M.G.; Rangel, António O.S.S.Three new hydrophilic 3-hydroxy-4-pyridinone chelators containing ether-derived substituents were prepared by a more sustainable synthetic protocol that involves the use of microwave heating and commercially available amines, allowing the successful production of highly water soluble chelators with improved reaction yields and reaction times. Compared with parent 3-hydroxy-4-pyridinone ligands, the new compound...
Novel tetradentate chelators derived from 3-hydroxy-4-pyridinone units: synthes...
Leite, Andreia; Silva, Ana M.G.; Nunes, Ana; Andrade, Mariana; Sousa, Carla; Cunha-Silva, Luís; Gameiro, Paula; de Castro, Baltazar; Rangel, MariaThe synthesis and characterization of three novel tetradentate ligands (T1, T2 and T3) based on 3-hydroxy-4-pyridinone chelating units are described. The three ligands exhibit different flexibility due to the use of two different anchor molecules, piperazine and 1,2-diaminobenzene, and to the diverse length of the 3-hydroxy-4-pyridinone arms. All reactions were performed using both conventional heating and micr...