Title of article
Excellent correlation between substituent constants and pyridinium N-methyl chemical shifts
Author/Authors
Huang، نويسنده , , Sha and Wong، نويسنده , , Jesse C.S. and Leung، نويسنده , , Adam K.C. and Chan، نويسنده , , Yee Man and Wong، نويسنده , , Lili and Fernendez، نويسنده , , Myrien R. and Miller، نويسنده , , Amanda K. and Wu، نويسنده , , Weiming، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2009
Pages
3
From page
5018
To page
5020
Abstract
Substituents on the pyridinium ring of N-methylpyridinium derivatives, especially those on the 2- or 4-position, have a large effect on the 1H and 13C NMR chemical shifts of the N-methyl group. Reasonable correlations between the chemical shift changes and the resonance substituent constants are observed. The dual substituent parameter approach provides an excellent correlation when a combination of polar and resonance substituent constants is employed.
Journal title
Tetrahedron Letters
Serial Year
2009
Journal title
Tetrahedron Letters
Record number
1865589
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