Synthesis and evaluation of bipendant-armed (oligo)thiophene crown ether derivatives as new chemical sensors

被引：27

作者：

Batista, Rosa M. F. ^{[2
]}

Oliveira, Elisabete ^{[1
]}

Costa, Susana P. G. ^{[2
]}

Lodeiro, Carlos ^{[1
]}

Raposo, M. Manuela M. ^{[2
]}

机构：

[1] Univ Nova Lisboa, Fac Ciencias & Tecnol, Dept Quim, REQUIMTE, P-2829516 Monte De Caparica, Portugal

[2] Univ Minho, Ctr Quim, P-4710057 Braga, Portugal

来源：

TETRAHEDRON LETTERS | 2008年 / 49卷 / 46期

关键词：

Reductive amination; Crown ethers; Formyl-(oligo)thiophene; (Oligo)thiophene; Chemosensors;

D O I：

10.1016/j.tetlet.2008.09.036

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Three new (oligo)thiophene bipendant-armed ligands 2a-c, derived from 2-(aminomethyl)-15-crown-5, have been synthesized and characterized. Compounds 2a-c were prepared by reductive amination of the corresponding macrocycle with formyl thiophene derivatives la-c in the presence of NaBH(ClAc) in fair, to good yields. The photophysical properties of ligands 2a-c were Studied and they were also evaluated as chemosensors in the presence of Na(I), Ag(I), Pd(II) and Hg(II) cations in acetonitrile Solution. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：6575 / 6578

页数：4

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