Journal
ORGANIC LETTERS
Volume 15, Issue 14, Pages 3518-3521Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol401120a
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Funding
- University of Houston (UH)
- Welch Foundation [E-1768]
- National Science Foundation [CHE-1151292]
- American Chemical Society Petroleum Research Fund [50390-DNI10]
- Texas Center for Superconductivity at UH
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Desilylation of silylethynyl-substituted benzobisoxazole cruciforms can be achieved using stoichiometric amounts of fluoride, leading to a significant change in their UV-vis absorption and fluorescence. This response is observable at micromolar concentrations of fluoride, and, in the case of a triisopropylsilyl-substituted cruciform fluorophore, extraordinarily selective for fluoride over other small inorganic anions, including hydroxide, acetate, and phosphate.
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