characterized by the usual spectroscopic and analytical studies. The COH4 receptor was examined for the detection of metal ions, in which it had a noticeable blue shifted fluorescence enhancement for Ag+ ions. Upon binding towards Ag+ ions, the photoinducedelectrontransfer (PET) process is inhibited via intramolecular chargetransfer (ICT) process assisted by the arrest of the carbon–carbon single bond
2-Oxo-2H-chromenylpyrazolecarboxylates (8a-h and 12a-zb) have been synthesized by [3 + 2] cycloaddition of 2H-chromenophenylhydrazones (7a-h and 11a-w) with diethyl/dimethylbut-2-ynedioates. Phenylchromeno[4,3-c]pyrazol-4(1H)-ones (13i-n) were prepared from corresponding phenylhydrazones (7a-h) with catalytic amount of piperidine in presence of pyridine as a solvent at 100 degrees C. All the synthesized compounds (8a-h, 12a-zb and 13a-n) were screened for anticancer activity against three human cancer cell lines such as prostate (DU-145), lung adenocarcinoma (A549), and cervical (HeLa) by standard MTT assay method. Further, photophysical properties (UV and fluorescence) for these compounds were discussed. (C) 2013 Elsevier Masson SAS. All rights reserved.
Rap, Gazzetta Chimica Italiana, 1897, vol. 27 II, p. 498
作者:Rap
DOI:——
日期:——
Bratenko; Chernyuk; Vovk, Russian Journal of Organic Chemistry, 1997, vol. 33, # 9, p. 1293 - 1295