Synfacts, Table of Contents Synfacts 2025; 21(02): 128DOI: 10.1055/a-2496-9152 Synthesis of Heterocycles Formal Nitrogen Insertion for the Synthesis of Aza-Heterocycles Contributor(s): Paul Richardson (Pfizer) Recommend Article Abstract Buy Article Keywords KeywordsStieglitz rearrangement - reductive amination - borane catalysis - reaction design - late-stage modification - benzylic oxidation Full Text