1H and 13C Nuclear Magnetic Resonance of Dihydroimidazo-Pyridine and Imidazo-(1,2-a)-Pyridine Derivatives.

Abstract

Replacement of the aromatic hydrogens of the pyridinium moiety of the dihydroimidazopyridine and imidazo(1,2-a) -pyridine derivatives with electron-donating and electron-withdrawing substituents causes displacement of the chemical shifts of aromatic protons. Quaternization of the nitrogen atoms causes molecular perturbations and affects the 1H and 13C nuclear magnetic resonance chemical shifts. The sign of the C and C8a displacements can be used to detect the site of quaternization. Dihydroimidazo-pyridines, Imidazo-pyridines, Quaternization effects, Organic chemistry. (jes)

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1989
Accession Number
ADA212713

Entities

People

  • August J. Muller
  • Everett O. Lewis
  • Fu-lian Hsu
  • Shekhar Munavalli
  • William T. Beaudry

Organizations

  • Edgewood Chemical Biological Center

Tags

Communities of Interest

  • C4I

DTIC Thesaurus Topics

  • Chemical Shifts
  • Chemistry
  • Classification
  • Displacement
  • Electron Density
  • Electrons
  • Engineering
  • Heterocyclic Compounds
  • Magnetic Resonance
  • Nitrogen
  • Nuclear Magnetic Resonance
  • Organic Chemistry
  • Pyridines
  • Resonance
  • Security
  • Spectra
  • Two Dimensional

Fields of Study

  • Chemistry

Readers

  • Electrochemical Surface Science
  • Materials Science and Engineering.
  • Polymer Science and Technology

Technology Areas

  • Microelectronics