Аннотация
A mild catalytic procedure for the efficient oxidative cyclization of aldoximes with maleimides mediated by hypervalent iodine(III) active species has been developed. This catalytic cyclization affords the corresponding pyrrolo-isoxazole products in generally good yields. The catalytic cycle involves active hydroxy(aryl)iodonium species generated in situ from 2-iodobenzoic acid as precatalyst and m-chloroperoxybenzoic acid (m-CPBA) as terminal oxidant in the presence of trifluoromethanesulfonic acid. The presence of active hydroxy(aryl)iodonium species in this reaction has been confirmed by ESI-mass spectrometry and1H NMR spectroscopy. (Figure presented.) .
Язык оригинала | Английский |
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Страницы (с-по) | 2340-2344 |
Число страниц | 5 |
Журнал | Advanced Synthesis and Catalysis |
Том | 358 |
Номер выпуска | 14 |
DOI | |
Состояние | Опубликовано - 1 янв 2016 |
ASJC Scopus subject areas
- Catalysis
- Organic Chemistry