RT info:eu-repo/semantics/article
T1 Pyrrolidine-based catalytic microporous polymers in sustainable C=N and C=C bond formation via iminium and enamine activation
A1 Vargas Rodríguez, Emily
A1 Esteban Hernández, Isabel Noelia
A1 Cencerrero, J.
A1 Francés, V.
A1 Álvarez, Cristina
A1 Miguel García, Jesús Ángel
A1 Gallardo, Alberto
A1 Lozano, Ángel E.
A1 Cid, María Belén
K1 Polymers
K1 Polimeros y polimerización
K1 Porous materials
K1 Catalysis
K1 Solvents
K1 Green chemistry
K1 Pyrrolidine confined catalysts
AB A new set of catalytic materials having a pyrrolidine moiety confined in microporous organic polymer networks (POPs) has been attained. These catalytic polymers have been prepared by a straightforward synthesis starting from microporous polymer networks made from isatin (or a mixture of isatin and trifluoroacetophenone) and 1,3,5-triphenylbenzene. The polymers efficiently catalyzed the formation of nitrones under very mild and sustainable conditions using green solvents through an iminium ion activation mechanism. The reactions are scalable, and polymers are easily recycled. Special attention has been paid to understanding all the factors that could affect the efficiency of the confined catalysts. The electronic and conformational characteristics of the pyrrolidine moiety attached to the porous polymers, as well as other features that could affect the transport through the network, such as molecular volume and shape of reactants and products, and even hydrophilic or hydrophobic properties, have been systematically evaluated. In addition, the heterogeneous polymers are also useful in Cdouble bondC bond formation through both iminium ion and enamine activation.
PB Elsevier
SN 2468-5194
YR 2022
FD 2022
LK https://uvadoc.uva.es/handle/10324/59313
UL https://uvadoc.uva.es/handle/10324/59313
LA eng
NO Materials Today Chemistry, 2022, Vol. 24, 100966
NO Producción Científica
DS UVaDOC
RD 22-dic-2024