Keywords
asymmetric Friedel–Crafts alkylation
chiral nickel(II) complex
indoles
Lewis acids.
β-nitrostyrenes
Abstract
μ-(Acetato)nickel(II) complex with Schiff base of (S)-(2-aminomethyl)pyrrolidine and 3,5-di-tert-butyl-2-hydroxybenzaldehyde as the chiral ligand was tested in the asymmetric Friedel-Crafts alkylation of indoles with β-nitrostyrenes. The reactions catalyzed by 5 mol% of the complex provided the corresponding 3-(1-aryl-2-nitroethyl)indoles with up to 98% yields and up to 69% ee values.
Funders
Russian Science Foundation
20-13-00155
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