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. Author manuscript; available in PMC: 2018 Dec 11.
Published in final edited form as: J Am Chem Soc. 2016 Oct 26;138(44):14658–14667. doi: 10.1021/jacs.6b07981

Scheme 2.

Scheme 2.

Influence of TEMPO on the Amination of 11 and 16

aA: HfsNH2 (0.25 mmol), 10 mol % of AgOTf, 12 mol % of tBu3tpy, 3.5 equiv of PhIO, CH2Cl2, 4 Å MS, 4 h, rt. bI: DfsNH2 (0.25 mmol), 10 mol % of AgOTf, 12 mol % of tpa, 1.2 equiv of PhIO, CH2Cl2, 4 Å MS, 1 h, rt.