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The solvent-induced shift in the proton NMR of some quinolizidine substituents

✍ Scribed by Robert T. Lalonde; Thomas N. Donvito; Amy I-M. Tsai; Chunfook Wong

Publisher
John Wiley and Sons
Year
1975
Tongue
English
Weight
240 KB
Volume
7
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The proton chemical shift values for the methyl groups in the nine monomethylquinolizidines are determined in deuterochloroform and benzene solutions. This solvent change results in the shielding of all the methyl groups except those in 1(a)‐and 3(a)‐methylquinolizidine which become deshielded. These results are compared with those obtained earlier for equatoral and axial methyl and methylene groups attached to the quinolizidine systems in Nuphar alkaloids and related compounds.

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