Martins, Dayse Carvalho da SilvaSilva, Fernando CésarMeireles, Alexandre MoreiraSoares, Érico Augusto RodriguesSilva, Grácia Divina de FátimaVieira Filho, Sidney AugustoDuarte, Lucienir PainsRebouças, Júlio SantosIdemori, Ynara Marina2017-08-312017-08-312016MARTINS, D. C. da S. et al. Selective oxidation of lupeol by iodosylbenzene catalyzed by manganese porphyrins. Catalysis Communications, v. 86, p. 104-107, 2016. Disponível em: <http://www.sciencedirect.com/science/article/pii/S1566736716302722>. Acesso em: 29 ago. 2017.1566-7367http://www.repositorio.ufop.br/handle/123456789/8638Manganese porphyrin-catalyzed oxidation of lupeol by iodosylbenzenewas achieved undermild conditionswith low isolated yields but with remarkable selectivity, depending on the catalyst of choice. Mn(III) mesotetraphenylporphyrin and Mn(III) meso-tetrakis(4-carbomethoxyphenyl)porphyrin provided an entry for the preparation of 3β,30-dihydroxylup-20(29)-ene (6–14% yields), whereas Mn(III) β-octabromo-meso-tetrakis(4- carbomethoxyphenyl)porphyrin led to 20-oxo-3β-hydroxy-29-norlupeol (6% yield), as single products. Unreacted lupeol was recovered in quantitative yield. The oxidative transformations at lupeol C20 or C30 take place with no need for protection of C3 hydroxyl moiety.en-USabertoTriterpeneHomogeneous catalystArtigo publicado em periodicoO periódico Catalysis Communications concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 4178720534825.https://doi.org/10.1016/j.catcom.2016.08.014