## Abstract ^15^N n.m.r. spectra of [^13^Cβ2, 3β^15^N~2~β__guanidino__]arginine and [^13^C, ^15^N~2~] urea were obtained in D~2~O and H~2~O at a variety of pH values both with and without proton decoupling. The effects of the proton exchange rate are readily observable in the proton coupled ^15^N s
Nitrogen-15 n.m.r. spectroscopy of amino sugars
β Scribed by Bruce Coxon
- Book ID
- 108308636
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 183 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0008-6215
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π SIMILAR VOLUMES
## Abstract The small negative magnetogyric ratio (Ξ³) of the ^15^N nucleus decreases the efficiency of ^15^Nο£Ώ^1^H dipoleβdipole relaxation to about 25% of that for an analogous ^13^C nucleus. This may lead to greater competition from other relaxation mechanisms in ^15^N n.m.r. and consequent partia
Derivatives of methyl 2-amino-2-deoxy-cr-D-altropyranoside-2-1siV and methyl 3-amino-3-deoxy-a-D-glucopyranoside-3-'s~ have been synthesized by addition of phthalimide-15N to methyl 2,3-anhydro-4,6-O-benzylidene-a-D-allopyranoside. The structures of the phthalimido derivatives that resulted have be