A novel method for constructing 3-(2-allyl)-indolyl substituted gem-difluoroalkenes that relies on Sc(OTf)3-catalyzed C2selective allylation/defluorination cascade of trifluoromethylated 3-indolylmethanols has been realized. This diazo-free protocol features exclusive regioselectivity and broad substrate...
Liu et al. (2026) studied this question.