A fluorescence-enhanced chemodosimeter for Fe(3+) based on hydrolysis of bis(coumarinyl) Schiff base

作者:Lin, Weiying*; Yuan, Lin; Feng, Jianbo; Cao, Xiaowei
来源:European Journal of Organic Chemistry, 2008, 2008(16): 2689-2692.
DOI:10.1002/ejoc.200800077

摘要

Bis(coumarinyl) Schiff base I was designed and synthesized as a fluorescence turn-on chemodosimeter for Fe(3+). The chemodosimeter was readily synthesized in four steps from 2,4-dihydroxybenzaldehyde. The addition of Fe(3+) to chemodosimeter 1 induced about a 140-fold enhancement in fluorescence. Furthermore, chemorlosimeter 1 was also highly selective to Fe(3+) over other metal ions, and most of the related metals ions exhibited negligible detection interference.