Synthesis and Characterization of 9-(Cycloheptatrienylidene)fluorene Derivatives: Acid-Triggered “Switch on” of Fluorophores
作者:Zixing Wang、Yajun Xing、Hongxia Shao、Ping Lu、William P. Weber
DOI:10.1021/ol047847a
日期:2005.1.1
A series of 9-(cycloheptatrienylidene)fluorene derivatives were synthesized in good yields through the Suzuki or Sonogashira cross-coupling reactions. Fluorescence "off-on" behaviors of these compounds were investigated on the basis of variable acid concentrations. These compounds were shown to be acid-sensing fluorophores with utility as indicators in acidic environments.
通过Suzuki或Sonogashira交叉偶联反应以高收率合成了一系列9-(环庚三烯叉)芴衍生物。在可变的酸浓度的基础上研究了这些化合物的荧光“开通”行为。这些化合物显示为酸敏感的荧光团,在酸性环境中可用作指示剂。