一种基于喹唑啉-4(3H)-酮的烯胺酮型荧光探针对CN^-的反应型识别研究  

A quinazolin-4(3H)-one-based enaminone as a fluorescent probe for reactive recognition to CN^-

作　　者：丁双丽 汤立军[1] 

机构地区：[1]渤海大学化学化工学院化学系,辽宁锦州121013

出　　处：《化学研究与应用》2017年第7期931-936,共6页Chemical Research and Application

基　　金：国家自然科学基金项目(21176029;21476029)资助;辽宁省高等学校优秀科技人才支持计划项目(LR2015001)资助

摘　　要：设计合成了一种基于喹唑啉-4(3H)-酮衍生物的烯胺酮型荧光探针QA。在DMSO溶液中,探针QA对CN^-具有高度的选择性识别作用,表现为荧光增强并蓝移,其识别机制为CN-对QA发生迈克尔加成反应。此外,探针QA对CN^-响应快速,检测限低至1.75×10^(-7)mol·L^(-1)。A new quinazolin-4（3H）-one derivatives-based fluorescent probe QA was designed and synthesized. Probe QA exhibited specific selectivity towards CN in DMS0 solution with fluorescence enhancement and blue-shifted. The recognition mechanism was proved to be underwent Michael addition of CN toward QA. In addition,the response of probe QA to CN was very fast and the de-tection limit was as low as 1.75×10-7mol·L-1.

关 键 词：喹唑啉-4(3H)-酮 氰离子识别 反应型荧光探针 

分 类 号：O657.3[理学—分析化学]