Selective chloromethylation of cavitand at the upper rim and induced fit type complexation with metal cations by new cavitands: Aza-crown-modified cavitands.
F. Hamada et al., Selective chloromethylation of cavitand at the upper rim and induced fit type complexation with metal cations by new cavitands: Aza-crown-modified cavitands., TETRAHEDR L, 40(8), 1999, pp. 1527-1530
Regioselective mono and dis-chloromethylation of cavitands have been prepar
ed as an intermediate of a new cavitand derivative. Mono- and bis-aza-15-cr
own-5 modified cavitands (4 and 5, respectively) have been obtained from mo
no-and bis-chloromethylated cavitands, respectively. The metal binding prop
erties of native cavitand (1), 4 and 5 were studied by H-1-NMR and UV-V is
spectroscopy. (C) 1999 Elsevier Science Ltd. All rights reserved.