Buscar
Mostrando ítems 1-10 de 3984
Detailed H-1 and C-13 NMR structural assignment and relative stereochemistry determination for three new and one known semi-synthetic sesquiterpene lactones
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
In this work is described a complete H-1 and C-13 NMR analysis for a group of four sesquiterpene lactones, three previously unknown. The unequivocal assignments were achieved by H-1 NMR, C-13{H-1} NMR, gCOSY. gHMQC, gHMBC ...
Long-range J(CH) heteronuclear coupling constants in cyclopentane derivatives. Part II
(John Wiley & Sons LtdChichesterInglaterra, 2007)
Complete assignment of the H-1 and C-13 NMR spectra of 2-phenyl-3H-naphtho[2,1-b][1,4]oxazin-3-one, 2-p-methoxyphenylnaphtho[1,2-d]oxazole and 2-phenylnaphtho[1,2-d]oxazole. Concerted use of one- and two-dimensional NMR techniques
(JOHN WILEY & SONS LTD, 1998-06)
The H-1 and C-13 NMR spectra of 2-phenyl-3H-naphtho[2,1-b][1,4]oxazin-3-one, 2-p-methoxyphenylnaphtho[1,2-d]oxazole and 2-phenylnaphtho[1,2-d]oxazole were totally assigned using a combination of one-and two-dimensional NMR ...
Complete 1H and 13C NMR spectral assignment of hydrogenated oxoisoaporphine derivatives
(2003)
2,3,8,9,10,11-Hexahydro-7H-dibenzo[de,h]quinolin-7-one, 5-methoxy-2,3,8,9,10,11-hexahydro-7H-dibenzo[de,h] quinolin-7-one, 5-methoxy-6-hydroxy-1,2,3,7a,8,9,10,11, 11a,11b-decahydro-7H-dibenzo[de,h]quinolin-7-one, ...
Complete assignments of (1)H and (13)C NMR spectral data for 7,7 `-dihydroarylnaphthalene lignan lactones
(JOHN WILEY & SONS LTD, 2009)
In this article we present a complete (1)H and (13)C NMR spectral analysis of three 7,7`-dihydroarylnaphthalene lignan lactones using modern NMR techniques such as COSY, HSQC, HMBC and NOE experiments. Complete assignment ...
Complete assignment of the 13C NMR spectra of 4,4-dimethylanthracene-1,9,10(4H)-trione and the regioisomeric monomethyl derivatives
(2000)
The 1H and 13C NMR spectra of a set of structurally related tricyclic quinones consisting of 4,4-dimethylanthracene-1,9,10(4H)-trione (1), 4,4,6,7-tetramethylanthracene-1,9,10(4H)-trione (2) and the regioisomers 4,4,5-(3), ...
H-1 and C-13 NMR spectroscopy analysis of acetonides of D-glucitol derivatives
(John Wiley & Sons LtdW SussexInglaterra, 1999)
A complete H-1 and C-13 NMR data assignment for the diterpene methyl (-)-zanzibarate by 2D spectroscopy and NOE experiments
(John Wiley & Sons LtdChichesterInglaterra, 2004)
Complete assignment of H-1 and C-13 NMR spectra of some 4 '-substituted diethyl 1-methylthio- and diethyl 1-methylsulfonyl-2-oxo-2-phenylethylphosphonates
(John Wiley & Sons LtdChichesterInglaterra, 2005)
Assignments of (1)H and (13)C NMR spectral data for benzoylecgonine, a cocaine metabolite
(Taylor & Francis IncPhiladelphiaEUA, 2008)