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Published on: August 12, 2019
Merging Cobalt-Catalyzed C-H Activation with the Mannich Reaction: A Modular Approach to α-Substituted N-Sulfonyl
Oluwaseun A Olu-Igbiloba1, Helmut Sitzmann1, Georg Manolikakes1
1Department of Chemistry, RPTU Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany.
Abstract:
A three-component synthesis of α-substituted N-sulfonyl amines from aryl aldehydes, primary sulfonamides, and (hetero)arenes is described. This transformation enables a straightforward and modular synthesis of highly substituted sulfonamide scaffolds in good yields. The direct functionalization of C(sp2)-H bonds via cobalt-catalyzed C-H-activation offers an appealing and atom-economical alternative to classical methods for the synthesis of α-arylated amines such as the Petasis or Mannich-type reactions.
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