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. Author manuscript; available in PMC: 2021 Aug 21.
Published in final edited form as: J Org Chem. 2020 Aug 5;85(16):10451–10465. doi: 10.1021/acs.joc.0c00415

Figure 4:

Figure 4:

Room Temperature EPR Analysis of Radicals by Spin Trapping with BMPO. Reaction Conditions: Co(acac)2 (1.0 equiv., 0.10 mmol), 2 (3.0 equiv., 0.30 mmol) in 0.80 mL DCB, 90 °C, for 15 min under an Ar atmosphere, followed by the gas exchange of Ar for O2, heated at 90 °C for 15 min, followed by quenching with a solution of BMPO.