Sirit, AKarakucuk, AMemon, SKocabas, EYilmaz, M2020-03-262020-03-2620040957-4166https://dx.doi.org/10.1016/j.tetasy.2004.09.028https://hdl.handle.net/20.500.12395/19215Two new chromogenic compounds, 5 and 6, and a novel chiral chromogenic calix[4](azoxa)crown-7 8 have been synthesized using a calix[4]arene platform. The starting reagents chiral diamine e and calix[4]arene diacid chloride derivative 7 were prepared conveniently according to recent approaches. The H-1 and C-13 NMR, data showed that these compounds exist in a cone conformation. Compounds 5 and 8 have shown broad absorption bands in UV-vis spectra suggesting their utility in different fields, for example, as sensors for ions as well as for chiral molecules. (C) 2004 Elsevier Ltd. All rights reserved.en10.1016/j.tetasy.2004.09.028info:eu-repo/semantics/openAccessArticle152235953600N/AWOS:000225311600015Q1