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

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

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

Active / Technical Report | Accession Number: ADA212713 |

Open PDF

Abstract:

Replacement of the aromatic hydrogens of the pyridinium moiety of the dihydroimidazopyridine and imidazo1,2-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

Author(s):

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

Author Organization(s):

CHEMICAL RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD

Descriptive Note:

Technical rept. Sep 86-Jun 88,

Pagination:

0027

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:

Approved For Public Release

RECORD

Collection: TR

Identifying Numbers

Report Number(s):

CRDEC-TR-059

Subject Terms

Joint Capability Areas:

JCA_6.3.3_Spectrum Management; JCA_6_Net Centric; JCA_3.2_Engagement; JCA_3_Force Application; JCA_6.3_Net Management; JCA_3.2.1_Kinetic Means; JCA_5_Command and Control

Modernization Areas:

Fully Networked C3

Communities of Interest:

C4I

Descriptor(s):

*AROMATIC COMPOUNDS, ATOMS, CHEMICAL SHIFTS, DISPLACEMENT, HYDROGEN, MOLECULES, NITROGEN, ORGANIC CHEMISTRY, PERTURBATIONS, PROTONS

Field(s)/Group(s):

Organic Chemistry

Report Date:

1989 Jul 01