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. Author manuscript; available in PMC: 2020 Mar 9.
Published in final edited form as: Nat Catal. 2019 Sep 9;2(10):882–888. doi: 10.1038/s41929-019-0336-1

Fig. 3.

Fig. 3

Trapping experiments. TFA = trifluoroacetic acid. X = Cl or OAc, Y = Br or ONf (see Table 1). The deuterium contents were measured by 1H NMR. a Enantiomeric ratio of the mixtures of isotopomers, determined by HPLC on a chiral stationary phase.