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Diastereoselective synthesis of atropisomeric pyrazolyl pyrrolo[3,4-d]isoxazolidines via pyrazolyl nitrone cycloaddition to facially divergent maleimides: intensive NMR and DFT studies
A pyrazolyl nitrone (2) underwent 1,3-dipolar cycloadditions to afford some N-substituted maleimides (3a–o). An atropisomeric character was introduced into the formed cycloadducts by using maleimides that have a restricted rotation around the C–N bond. Also, facial selectivity of both endo and exo c...
| Autores principales: | , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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The Royal Society of Chemistry
2020
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9047523/ https://www.ncbi.nlm.nih.gov/pubmed/35494462 http://dx.doi.org/10.1039/c9ra10039c |