Abstract
Two 4-amino-N-bromoalkylphthalimide derivatives were prepared by the reduction of 4-nitro-N-bromoalkylphthal-imides and SnCl2 and reacted with calix[4]azacrown to give two new 4-aminophthalimido-N-alkyl-calix[4]azacrown derivatives. They were characterised by IR, 1H NMR, 13C NMR and HRMS and shown to adopt a cone conformation, 4-aminophthalimido-N-alkyl-calix[4]azacrown may provide a potential fluorescent probe for Cu2+.
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