Light-Driven Photoconversion of Squaramides with Implications in Anion Transport
ORGANIC LETTERS(2023)
摘要
Simple, clean and fast photoconversion of aniline derived squaramides was achieved by flashlight illumination. UV irradiation enabled the photochemical squaramide ring-opening to generate 1,2-bisketenes, which DMSO trapped as the nucleophilic oxidant. The only photoproducts isolated were 3,4-arylamino maleic anhydrides, which present conformational preferences very different from those of their parent squaramides. Similar photoconversion was achieved in MeOH. The UV-mediated time-dependent anion transport inhibition was demonstrated, establishing a new approach for modulating the transport abilities of AD-squaramides.
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关键词
squaramides,photoconversion,light-driven
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