Reductive hydroxymethylation of 4‐heteroarylpyridines
- The activation of pyridinium salts with electron‐withdrawing heterocycles enables an iridium‐catalyzed reductive hydroxymethylation reaction to proceed smoothly, facilitating the preparation of useful 3D heteroaryl‐substituted functionalized piperidines. The methodology is used to prepare 3‐hydroxymethylated analogues of pharmaceutical agents. Mechanistically, formaldehyde acts as both a hydride donor and the electrophile, leading to the formation of two new carbon–hydrogen bonds and one new carbon–carbon bond under relatively mild conditions.
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- Wiley‐VCH Verlag GmbH & Co. KGaA.
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- © 2020 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
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