Application of the HECADE method to the measurement of long-range heteronuclear 13C,1H spin-spin coupling constants in tautomeric β-sulfonylenamines

被引:0
|
作者
Kozminski, W
Bednarek, E
Bocian, W
Sitkowski, J
Hansen, PE
Kwiecien, B
Kozerski, L
机构
[1] Univ Warsaw, Dept Chem, PL-02093 Warsaw, Poland
[2] Drug Inst, PL-00725 Warsaw, Poland
[3] Roskilde Univ, Dept Chem & Life Sci, DK-4000 Roskilde, Denmark
[4] Polish Acad Sci, Inst Organ Chem, PL-01224 Warsaw, Poland
关键词
NMR; C-13; H-1 coupling constants; HSQC; beta-sulfonylenamines;
D O I
10.1002/1097-458X(200010)38:10<839::AID-MRC745>3.0.CO;2-N
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The applicability of HECADE approach to the measurement of C-13, 1 long-range coupling constants, which was difficult to achieve by other methods, is demonstrated. The coupling magnitudes obtained allow the qualitative characterization of rotational degrees of freedom in all isomers of the beta-sulfonylenamines studied in terms of the prevailing conformation contribution to conformational averaging. Copyright (C) 2000 John Wiley & Sons, Ltd.
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页码:839 / 844
页数:6
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