enantioselective bifunctionalsquaramide‐catalyzed detrifluoroacetylativealkylationreaction has been developed under electrochemical conditions. The unified strategy based on this key tandem methodology has been divergently explored for the asymmetric synthesis of fluorine‐containing target molecules with good stereocontrol (up to 95 % ee). Furthermore, this asymmetric catalytic reaction combines the
A visible‐light photoredox‐catalyzed reaction of tetrahydroisoquinolines with β‐fluorinated gem‐diols results in the formation of C1‐monofluoromethylated tetrahydroisoquinolines via C(sp3)Hbondactivation. This protocol provides a new method to introduce a CF group with stable, easily‐prepared monofluorinated gem‐diol as CF source. A mechanistic investigation is presented based on control experiments
Highly Enantioselective Construction of 3-Hydroxy Oxindoles through a Decarboxylative Aldol Addition of Trifluoromethyl α-Fluorinated<i>gem</i>-Diols to<i>N</i>-Benzyl Isatins
An organocatalytic asymmetric direct aldoladdition reaction that involves cleavage of a carbon–carbon bond through the release of trifluoroacetate was developed. The protocol is wide in scope, generating the desired oxindoles of biological interest in nearly quantitative yields (up to 99 %) with excellent enantioselectivities (up to 98 % ee) and diastereoselectivities (up to 99:1 d.r.).
A new organocatalytic asymmetric Michael addition reaction by cleavage of carbon‐carbon bonds through a mild release of trifluoroacetate has been developed. The reported method generates the decarboxylated γ‐nitro‐α‐fluorocarbonyl products with excellent enantioselectivies (up to 98% ee) and good diastereoselectivies (up to 20:1 dr).