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. Author manuscript; available in PMC: 2023 Mar 17.
Published in final edited form as: Chem Rev. 2021 Nov 9;122(2):2487–2649. doi: 10.1021/acs.chemrev.1c00384

Scheme 23.

Scheme 23.

(A) Anodic oxidation produces the key alkyl carbocation for ether formation. (B) The putative metallaphotoredox mechanism for decarboxylative etherification by Hu. (C) The putative tandem photoredox and organocatalytic mechanism for decarboxylative etherification by Nagao and Ohmiya.