Visible‐light‐enabled photocatalytic carbotrifluoro‐methylations of allylic alcohols and sodium triflinate were explored through 1,2‐migration of an aryl group, affording an efficient method for synthesis of β‐trifluoromethyl‐α‐substituted carbonyl compounds under mild reaction conditions. This catalyst system is well tolerant of various synthetically useful functional groups.
Iron-catalyzedtrifluoromethylation with concomitant 1,2-migration of an aryl group starting from diaryl allyl alcohol was achieved under mild conditions. This reaction system affords alpha-substituted-beta-trifluoromethyl carbonyl compounds in high efficiency. In the case of substrates bearing different aryl groups, selective migration was observed.