A convenient synthesis and preliminary photophysical study of novel fluoroionophores: macrocyclic polyamines containing two dansylamidoethyl side arms
摘要:
A series of novel fluorophores, consisting of macrocyclic polyamines containing two dansylamidoethyl side arms were synthesized as potential zinc (II) fluoroionophores by the reaction of the appropriate macrocyclic polyamines with N-dansylaziridine in acetonitrile at reflux temperature. Preliminary photophysical studies of ligand 3a, 1,7-dimethyl-4,10-bis(dansylamidoethyl)-1,4,7,10-tetraazacyclododecane, 3j, 8,13-bis(dansylamidoethyl)-3-hydroxymethyl-1,3,10-trithia-8-13-diazacyclopentadecane, and their complexes with Cu2+, Zn2+, Cd2+, and Hg2+ are described. (C) 2000 Elsevier Science Ltd. All rights reserved.
New diazadi(and tri)thia-21-crown-7 ethers containing 8-hydroxyquinoline side arms
作者:Hua-Can Song、Yi-Wen Chen、Ji-Guo Song、Paul B. Savage、Guo-Ping Xue、Joseph A. Chiara、Reed M. Izatt、Jerald S. Bradshaw、Krzysztof E. Krakowiak
DOI:10.1002/jhet.5570380619
日期:2001.11
A series of macrocyclic diazadi(and tri)thiacrown etherscontaining two 5-substituent-8-hydroxyquinoline sidearms have been synthesized from the corresponding macrocyclic diazadi(and tri)thiacrown ethers. The crown ethers were obtained by reduction of the proper macrocyclic di(and tri)thiadiamides by borane-tetrahydrofuran or by sodium borohydride-boron trifluoride ethyl etherate-tetrahydrofuran.
Azidocryptands–synthesis, structure, and complexation properties
作者:Christina Tönshoff、Klaus Merz、Götz Bucher
DOI:10.1039/b413395a
日期:——
Cryptands bearing an intraannular azido substituent have been synthesized and characterized spectroscopically. Their complexation properties were investigated by picrate extraction analysis. The oxygen-containing cryptands were found to be good ligands for alkali cations, with a preference for Li(+) and Na(+). The molecularstructure of the complex with KBr was determined by X-ray crystallography.