Chemistry Letters, Vol.29, No.8, 928-929, 2000
Lithium-selective coloration of spirobenzopyran derivative incorporating monoaza-12-crown-4 in micellar solution
A spirobenzopyran derivative bearing a monoaza-12-crown-4 moiety and an octadecyl group as a Lipophilic chain was synthesized and was used as a chromogenic reagent for alkali metal ion in micellar solutions. The crowned spirobenzopyran derivative exhibited highly Li+-selective spectral changes under high pH conditions.