Protonated Bis-1,2,3-triazole as an Anion-Binding Chiral Brønsted Acid for Catalytic Asymmetric Friedel–Crafts Reaction of Indoles with Imines
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DOI: 10.1246/bcsj.20180098
Abstract: The complex of chiral C2-symmetric bis-1,2,3-triazole and an achiral Bronsted acid is introduced as a new class of chiral acid catalysts. The catalytic activity and stereocontrolling ability of this chiral Bronsted acid can be tuned… read more here.
Keywords: reaction indoles; asymmetric friedel; crafts reaction; bis triazole ... See more keywords
Asymmetric Friedel–Crafts Alkylation of Indoles Catalyzed by Chiral Aziridine-Phosphines
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DOI: 10.3390/catal10090971
Abstract: Over the course of the present studies, a series of optically pure phosphines functionalized by chiral aziridines was synthesized in reasonable/good chemical yields. Their catalytic activity was checked in the enantioselective Friedel–Crafts alkylation of indoles… read more here.
Keywords: crafts alkylation; alkylation indoles; asymmetric friedel; indoles catalyzed ... See more keywords