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N-Atom Deletion in Nitrogen Heterocycles.

Haitao QinWangshui CaiShuang WangTing GuoGuigen LiHongjian Lu
Published in: Angewandte Chemie (International ed. in English) (2021)
Excising the nitrogen in secondary amines, and coupling the two residual fragments is a skeletal editing strategy that can be used to construct molecules with new skeletons, but which has been largely unexplored. Here we report a versatile method of N-atom excision from N-heterocycles. The process uses readily available N-heterocycles as substrates, and proceeds by N-sulfonylazidonation followed by the rearrangement of sulfamoyl azide intermediates, providing various cyclic products. Examples are provided of deletion of nitrogen from natural products, synthesis of chiral O-heterocycles from commercially available chiral β-amino alcohols, formal inert C-H functionalization through a sequence of N-directed C-H functionalization and N-atom deletion reactions in which the N-atom can serve as a traceless directing group.
Keyphrases
  • molecular dynamics
  • electron transfer
  • crispr cas
  • ionic liquid
  • capillary electrophoresis