Fig. 1: Strategies for the construction of deuterated stereocenters.
From: Visible-light mediated catalytic asymmetric radical deuteration at non-benzylic positions

a Catalytic asymmetric deuteration via a closed-shell mechanism involving formal deuteride (D–) or deuteron (D+) or via an open-shell deuterium atom transfer (DAT) pathway. b This work, enantioselective deuterofunctionalization of olefins using a chiral thiol catalyst and deuterium oxide (D2O). PC photocatalyst, LED light-emitting diode.