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- W4205547822 abstract "A dimerization/cyclization reaction of 2-benzylamino-phenols for the direct synthesis of the oxazolo-phenoxazine skeleton is reported. The reaction occurs under copper catalysis in the presence of hypervalent iodine(III), giving selectively the 5H-oxazolo[4,5-b]phenoxazine compounds. The cascade process, which allows the conversion of the substrates into the tetracyclic products, involves three C-H functionalization steps. Initial oxidation of electron-rich arenes by the hypervalent iodine is essential for the dimerization of substrates, whereas the formation of the five-membered rings is promoted by the copper species. 1-Benzyl-2-phenyl-6-(aryl-benzyl)amino-benzimidazoles are regioselectively obtained using N,N'-dibenzyl-phenylenediamines as starting substrates. The fluorescence emission properties of these classes of products have been evaluated." @default.
- W4205547822 created "2022-01-26" @default.
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- W4205547822 date "2022-01-11" @default.
- W4205547822 modified "2023-10-08" @default.
- W4205547822 title "Direct Synthesis of Fluorescent Oxazolo-phenoxazines by Copper-Catalyzed/Hypervalent Iodine(III)-Mediated Dimerization/Cyclization of 2-Benzylamino-phenols" @default.
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- W4205547822 doi "https://doi.org/10.1021/acs.joc.1c02329" @default.
- W4205547822 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35014843" @default.
- W4205547822 hasPublicationYear "2022" @default.
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