Journal
ORGANIC LETTERS
Volume 22, Issue 21, Pages 8234-8239Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.0c02814
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Funding
- National Natural Science Foundation of China [21702037, 21662009, 31860516, 21877021]
- Research Project of the Ministry of Education of China [20135201110005, 213033A]
- Key Technologies RD Program [2014BAD23B01]
- Guizhou Provincial ST Program [[2017]5788]
- Program of Introducing Talents of Discipline to Universities of China (111 Program) [D20023]
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A robust six-membered rhodamine spirocyclic probe 1 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 1 allowed the highly hypersensitive detection of Cu2+ 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.
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