State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China.
Org Lett. 2020 Nov 6;22(21):8234-8239. doi: 10.1021/acs.orglett.0c02814. Epub 2020 Oct 16.
A robust six-membered rhodamine spirocyclic probe containing a versatile 2-aminoimidazolyl moiety was elaborately designed and synthesized via an attractive C-C and C-N coupling strategy to improve the performance in the detection of ultralow transition metal ions. Probe allowed the highly hypersensitive detection of Cu with a superior picomolar limit of detection (35 pM) and nanomolar naked-eye performance (80 nM) via the switching of C-C and C-N cleavage by a catalytic hydrolysis mode.
一种稳定的六元螺环罗丹明探针,含有多功能 2-氨基咪唑基部分,通过一种有吸引力的 C-C 和 C-N 偶联策略精心设计和合成,以提高检测超低过渡金属离子的性能。探针通过催化水解模式的 C-C 和 C-N 裂解的转换,允许对 Cu 进行高度超灵敏的检测,具有优异的皮摩尔检测限(35 pM)和纳摩尔肉眼性能(80 nM)。