Synthesis of 1-(Β-Coumarinyl)-1-(Β-Indolyl)trifluoroethanols Through Regioselective Friedel–Crafts Alkylation of Indoles With Β-(Trifluoroacetyl)coumarins Catalyzed by Sc(OTf)3

RSC Advances - United Kingdom
doi 10.1039/d0ra01237h
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Royal Society of Chemistry (RSC)