51084-72-1Relevant academic research and scientific papers
Synthesis and characterization of benzo-15-crown-5 ethers with appended N2O Schiff bases
Sousa, Carla,Freire, Cristina,De Castro, Baltazar
, p. 894 - 900 (2003)
New derivatives of benzo-15-crown-5 with flexible appended N2O unsymmetrical Schiff bases were prepared by a two step procedure which involves: (i) preparation of N2O Schiff bases by condensation of hydrazine with salicylaldehyde, 3-methoxysalicylaldehyde or 2-hydroxy-1-naphtaldehyde and (ii) reaction of the resulting NH2 functionalized compounds with 4′-formyl-benzo-15-crown-5.
Calix[4]arene Schiff bases-potential ligands for fluorescent studies
Mahon, Mary F.,McGinley, John,Rooney, A. Denise,Walsh, John M.D.
experimental part, p. 11058 - 11066 (2009/04/11)
A series of novel double-armed calix[4]arene derivatives incorporating imine substituents were synthesised from the Schiff-base reaction of 25,27-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.
