TfNN15N: A γ-15N-Labeled Diazo-Transfer Reagent for the Synthesis of β-15N-Labeled Azides

Hyeok Jun Kwon, Sungduk Gwak, Jun Young Park, Minhaeng Cho, Hogyu Han

Research output: Contribution to journalArticlepeer-review

Abstract

Azides are infrared (IR) probes that are important for structure and dynamics studies of proteins. However, they often display complex IR spectra owing to Fermi resonances and multiple conformers. Isotopic substitution of azides weakens the Fermi resonance, allowing more accurate IR spectral analysis. Site-specifically 15N-labeled aromatic azides, but not aliphatic azides, are synthesized through nitrosation. Both 15N-labeled aromatic and aliphatic azides are synthesized through nucleophilic substitution or diazo-transfer reaction but as an isotopomeric mixture. We present the synthesis of TfNN15N, a γ-15N-labeled diazo-transfer reagent, and its use to prepare β-15N-labeled aliphatic as well as aromatic azides.

Original languageEnglish
Pages (from-to)293-298
Number of pages6
JournalACS Omega
Volume7
Issue number1
DOIs
Publication statusPublished - 2022 Jan 11

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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