RT info:eu-repo/semantics/article
T1 Microporous polymeric networks containing a long-term stable auI catalyst for enyne cyclization
A1 Rico Martínez, Sandra
A1 Ruiz, Adrián
A1 López Iglesias, Beatriz
A1 Álvarez, Cristina
A1 Lozano, Ángel E.
A1 Miguel García, Jesús Ángel
K1 Redes poliméricas porosas
K1 Porous organic polymers
K1 AuI catalyst
K1 Confined catalyst
K1 Enyne cyclization
K1 2210 Química Física
AB Two microporous polymer networks having a confined AuI carbene catalyst were obtained and tested for the skeletal rearrangement of enynes. These catalysts were obtained from precursor porous organic polymers (POPs), a type of microporous polymer network, synthesized by the reaction of isatinor a mixture of isatin/trifluoroacetophenone (1:1) with triptycene (POP1 and POP2, respectively) through an electrophilic aromatic substitution, EAS, reaction promoted by trifluoromethanesulfonic acid. These precursors could be easily functionalized through the lactam moiety to form AuI carbene catalysts (POP1-AuCarbene and POP2-AuCarbene). The confined carbenes proved to be very active for the skeletal rearrangement of dimethyl 2-(3-methyl-2-butenyl)-2-propinylmalonate enyne. A large increase in the stability of the AuI catalysts was observed compared to those of most of the homogeneous catalysts described so far in the bibliography. This long-term stability was associated with the separation of AuI atoms, induced by their confinement in the microporous networks. In particular, POP2-AuCarbene exhibited outstanding long-term stability, maintaining catalytic activity even after several months.
PB ACS
SN 2637-6105
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/70916
UL https://uvadoc.uva.es/handle/10324/70916
LA eng
NO ACS Applied Polymer Materials, Febrero 2024, vol. 6, n. 5. p. 2453–2463
NO Producción Científica
DS UVaDOC
RD 26-dic-2024