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Fingerprint and authenticity roasted coffees by 1H-NMR: the Brazilian coffee case
(2018-02-01)
With globalization, it has become necessary to adopt policies to regulate the coffee market, addressing problems including the authenticity and traceability of products. It is therefore important to establish methodologies ...
H-1-N-15 NMR studies of the complex bis(S-allyl-L-cysteinate)palladium(II)
(Elsevier B.V., 2006-05-15)
H-1-N-15 2D NMR data for S-allyl-L-cysteine (deoxyalliin) and for bis(S-allyl-L-cysteinate)palladium(II) complex are presented in this manuscript. Large upfield N-15 NMR shift of the amine nitrogen in the spectrum of the ...
Detailed H-1 and C-13 NMR structural assignment and relative stereochemistry determination for three closely related sesquiterpene lactones
(JOHN WILEY & SONS LTD, 2008)
A complete analysis of H-1 and C-13 NMR spectra of the trypanocidal sesquiterpene lactone eremantholide C and two of its analogues is described. These structurally similar sesquiterpene lactones were submitted to H-1 NMR, ...
Combined (13)C NMR and DFT/GIAO studies of the polyketides Aurasperone A and Fonsecinone A
(Wiley-Blackwell, 2008-11-05)
Structural characterization by NMR spectroscopy and DFT calculations was performed for two dimeric naptho-gamma-pyrones, the polyketides Aurasperone A and Fonsecinone A. Experimental data ((13)C NMR chemical shifts and ...