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Updated: Feb 13, 2026

Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores
Published on: August 19, 2013
Intermolecular C(sp3 )-H Amination of Complex Molecules
Nicholas D Chiappini1, James B C Mack1, J Du Bois1
1Department of Chemistry, Stanford University, Stanford, CA, 94305-5080, USA.
Abstract:
A general and operationally convenient method for intermolecular amination of C(sp3 )-H bonds is described. This technology allows for efficient functionalization of complex molecules, including numerous pharmaceutical targets. The combination of pivalonitrile as a solvent, Al2 O3 as an additive, and phenyl sulfamate as a nitrogen source affords differential reaction performance and substrate scope. Mechanistic data strongly implicate a pathway for catalyst decomposition that initiates with solvent oxidation, thus providing rationale for the marked influence of pivalonitrile on this reaction process.
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