Calix[4]arene Schiff bases-potential ligands for fluorescent studies

TETRAHEDRON

卷:64

Article

Mahon, Mary F.²  McGinley, John¹  Rooney, A. Denise¹  Walsh, John M. D.¹ 

[1] Natl Univ Ireland Maynooth, Dept Chem, Maynooth, Kildare, Ireland

[2] Univ Bath, Dept Chem, Xray Crystallog Unit, Bath BA2 7AY, Avon, England

关键词: Calix[4]arene;    Schiff bases;    X-ray structure;    NMR spectroscopy;    Inclusion;    Synthesis;   

DOI  :  10.1016/j.tet.2008.09.091

来源: Elsevier

【 摘 要 】

A series of novel double-armed calix[4]arene derivatives incorporating imine substituents were synthesised from the Schiff-base reaction of 2 5,2 7-bis[2-[(1-formyl-2-phenyl)oxy]ethyl-p-tert-butylcalix[4]arene (1) with the appropriate amine or hydrazone. All compounds were characterised by various spectroscopic and analytical techniques, and in three cases, by X-ray crystallographic studies. In the case of compound 2, inclusion compounds were synthesised with both m-xylene and dimethylformamide and their X-ray structures revealed these inclusion sites-between the pendant arms and in the upper cavity, respectively. In all cases, the pendant arms are bent away from each rather than adopting a face-to-face conformation. (C) 2008 Elsevier Ltd. All Fights reserved.

【 授权许可】

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