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. Author manuscript; available in PMC: 2021 May 20.
Published in final edited form as: J Am Chem Soc. 2020 May 6;142(20):9175–9180. doi: 10.1021/jacs.0c03991

Figure 5.

Figure 5.

One-pot competition KIE between 1a and 13C2-1a. A primary KIE of 1.126(9) was measured, indicating that oxetane silylation must be reversible, supporting enantiodetermining bromide delivery.