The unambiguous assignment of NMR spectra of per-O-methylated 6-mono and 6,6-diamino-β-cyclodextrins

T., Eduardo Díaz; Jankowski, Christopher K.; Hocquelet, Celine; Del Rio P., Federico; Barrios, Héctor
July 2008
Canadian Journal of Chemistry;Jul2008, Vol. 86 Issue 7, p726
Academic Journal
The step-by-step analysis of high-resolution proton and 13C NMR spectra of per-O-methylated-6-monoamino and 6,6-diamino-A,D-β-cyclodextrins is described. Selected 2-D experiments (COSY, NOESY, HSQC, DEPT, and HMBC) allowed us to challenge the current interpretation. The full assignment of the proton and carbon-13 NMR spectra of these two compounds was performed enabling us to complete the assignment of NMR spectra acquired at 500 and 800 MHz for these important synthetic intermediates.


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