RT info:eu-repo/semantics/article T1 Bifunctional thiourea-modified polymers of intrinsic microporosity for enantioselective α-amination of 3-aryl-2-oxindoles in batch and flow conditions A1 Martín Maroto, Laura A1 Maestro Fernández, Alicia A1 Andrés García, José María A1 Pedrosa Sáez, Rafael K1 Polímeros K1 Polymers K1 2306 Química Orgánica AB Two novel polymers of intrinsic microporosity decorated with chiral thioureas have been used as recoverable organocatalysts in enantioselective α-amination of 3-aryl-substituted oxindoles, creating a quaternary stereocenter. Both catalysts were able to promote the reaction in excellent yields and good enantioselection. Catalyst II, with a pyridyl nucleus, was used in recycling experiments maintaining the activity without additional reactivation, and in flow processes allowing the synthesis of the amination product in multigram scale. PB Royal Society of Chemistry SN 1477-0520 YR 2020 FD 2020 LK http://uvadoc.uva.es/handle/10324/43682 UL http://uvadoc.uva.es/handle/10324/43682 LA eng NO Organic and Biomolecular Chemistry, 2020, 18, 9275-9283 NO Producción Científica DS UVaDOC RD 21-dic-2024