Fig. 3. Substrate scope.

Unless otherwise noted, reactions were conducted on a 1 mmol scale with 1 mL MeCN (for aldehyde, lactone and ketone) or MeOH (for ester) at room temperature under 1 atm O₂, and yields were determined by flash column chromatography. Yields in parentheses were determined by ¹H NMR. For late stage oxidation, reactions were conducted on 0.2 mmol scale with LaI₃ (5 mol%), o-Q (10 mol%) at room temperature under 1 atm O₂ and yields were determined by flash column chromatography (for details, see Supplementary Information). ^aLaI₃ (2 mol%), o-Q (4 mol%). ^bLaI₃ (4 mol%), o-Q (8 mol%). ^cLa(OTf)₃ (5 mol%), o-Q (10 mol%), nBu₄NI (15 mol%) for 2 h. ^dMeCN/DCM (v/v = 1:1, 0.5 M).