Beilstein J. Org. Chem.2020,16, 1411–1417, doi:10.3762/bjoc.16.117
synthesized and investigated for their photochemical properties. The introduction of a fluorine substituent into 3,5-diarylisoxazoles led to an increase of fluorescence intensity and exhibited a redshift in the emission intensity. α-Fluorinated boronketoiminates (F-BKIs) were also synthesized via a ring
-opening reaction of 4-fluoroisoxazoles and exhibited highly fluorescent luminescence and aggregation-induced emission (AIE), showing promise as a new fluorophore.
Keywords: aggregation-induced emission; boronketoiminates; fluorescent probe; α-fluorinated boronketoiminates; 4-fluoroisoxazoles
fluorescent luminescence characteristics of 4-fluoroisoxazoles, the synthesis of α-fluorinated boronketoiminates (F-BKIs), and their photochemical properties.
Results and Discussion
Synthesis and optical properties of 4-fluorinated isoxazoles
Although there is a large number of fluorescent molecules
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Graphical Abstract
Scheme 1:
Selective fluorination of isoxazoles and one-pot synthesis of 4-fluoroisoxazoles.