Polystyrene-supported cu(II)-R-Box as recyclable catalyst in asymmetric Friedel–Crafts reaction

V. G. Desyatkin; M. V. Anokhin; V. O. Rodionov; I. P. Beletskaya

doi:10.1134/S1070428016120010

Polystyrene-supported cu(II)-R-Box as recyclable catalyst in asymmetric Friedel–Crafts reaction

Autores: Desyatkin V.G.¹, Anokhin M.V.¹, Rodionov V.O.², Beletskaya I.P.¹
Afiliações:
1. Faculty of Chemistry
2. King Abdullah University of Science and Technology
Edição: Volume 52, Nº 12 (2016)
Páginas: 1717-1727
Seção: Article
URL: https://journal-vniispk.ru/1070-4280/article/view/215393
DOI: https://doi.org/10.1134/S1070428016120010
ID: 215393

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The complex of copper(II) trifluoromethanesulfonate with chiral isopropyl bis(oxazoline) ligand (i-Pr-Box) was immobilized on accessible and inexpensive Merrifield resin according to a “click” procedure. The resulting catalyst showed high efficiency and recyclability in the asymmetric Friedel–Crafts alkylation of indole and its derivatives. The catalyst can be recycled five times without appreciable loss in activity and enantioselectivity.