Several water-soluble calix[4]arenes were synthesized via radical addition reaction between thiols and alkenes under UV lamp irradiation（λ= 365 nm） in good yields.The structures of these compounds synthesized herei...Several water-soluble calix[4]arenes were synthesized via radical addition reaction between thiols and alkenes under UV lamp irradiation（λ= 365 nm） in good yields.The structures of these compounds synthesized herein were fully confirmed by 1 H NMR.ES1-MS and elemental analysis.展开更多
A novel series of calix[4]arene derivatives were synthesized via a Pd-catalyzed Sonogashira coupling reaction from para-substituted iodobenzene and 25,27-dipropargyl-calix[4]arene. Fluorescence studies found that nitr...A novel series of calix[4]arene derivatives were synthesized via a Pd-catalyzed Sonogashira coupling reaction from para-substituted iodobenzene and 25,27-dipropargyl-calix[4]arene. Fluorescence studies found that nitro-phenols clearly exhibited quenching effects on 2c. Moreover, we minimized the free energy of the complexes by theoretical calculations. As the result, the πr-π stacking interactions take place between the 4-nitrophenol and calix[4]arene, which may lead to the significant fluorescence quench.展开更多
基金supported by the National Natural Science Foundation of China(Nos.21072072 and 21102051)PCSIRT(No.IRTO953)+1 种基金Program for New Century Excellent Talent in University(No.NCET-10-0428)Self-determined Research Funds of CCNU from the Colleges Basic Research and Operation of MOE (Nos.CCNU11C01002,CCNU12A01004 and CCNU12A02012)
文摘Several water-soluble calix[4]arenes were synthesized via radical addition reaction between thiols and alkenes under UV lamp irradiation（λ= 365 nm） in good yields.The structures of these compounds synthesized herein were fully confirmed by 1 H NMR.ES1-MS and elemental analysis.
基金financially supported by the National Natural Science Foundation of China(Nos.21372092,21072072, 21102051)PCSIRT(No.IRT0953)+2 种基金Program for New Century Excellent Talent in University(No.NCET-10-0428)self-determined research funds of CCNU from the colleges,basic research and operation of MOE(Nos.CCNU11C01002,CCNU13F005)State Key Laboratory of Chemo/Biosensing and Chemometrics (201003)
文摘A novel series of calix[4]arene derivatives were synthesized via a Pd-catalyzed Sonogashira coupling reaction from para-substituted iodobenzene and 25,27-dipropargyl-calix[4]arene. Fluorescence studies found that nitro-phenols clearly exhibited quenching effects on 2c. Moreover, we minimized the free energy of the complexes by theoretical calculations. As the result, the πr-π stacking interactions take place between the 4-nitrophenol and calix[4]arene, which may lead to the significant fluorescence quench.
