Electronic Activation Enables the Borylation of Alkyl C-H Bonds in Saturated Nitrogen Heterocycles.

Catalytic functionalization of C-H bonds is a valuable strategy for the synthesis and diversification of organic compounds. The catalytic borylation of heteroaromatic C-H bonds is well established, but the analogous borylation of alkyl C-H bonds in saturated heterocycles remains underdeveloped. Reactions with improved catalysts recently reported for the borylation of alkyl C-H bonds occurred with a narrow range of such nitrogen heterocycles. Here, we describe a broadly applicable approach to activate C-H bonds in saturated nitrogen heterocycles for iridium-catalyzed borylation by installing a group on nitrogen that increases the reactivity of specific C-H bonds. Mechanistic studies reveal that the electron withdrawing groups accelerate the rate of borylation by enhancing the energetics of multiple steps within the catalytic cycle.

• Publication year

  2025

• Venue

  Journal of the American Chemical Society

• Publication date

  2025-11-11

• Fields of study

  Medicine, Chemistry

• Identifiers
  DOI 10.1021/jacs.5c15431PMID 41217450PMCID PMC12629849
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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