1H- AND 13C-N.M.R. SPECTRA OF ELEDOISIN AND INTERMEDIATE OLIGOPEPTIDES*
โ Scribed by DeMarco, A. ;Gatti, G.
- Book ID
- 115097192
- Publisher
- Wiley (Blackwell Publishing)
- Year
- 2009
- Tongue
- English
- Weight
- 325 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0367-8377
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## Abstract Proton and carbon magnetic resonance spectra of Lewisite or dichloro(__trans__โ2โchlorovinyl)arsine have been measured and the results are compared with the n.m.r. spectral parameters of other __trans__โ1,2โsubstituted ethylenes. The coupling constants can be rationalized by substituent
## Abstract The noiseโdecoupled and gatedโdecoupled ^13^C n.m.r. spectra of quercetin and rutin are studied and assignments are proposed. The previous assignments of carbons 2 and 4โฒ, carbons 5 and 9, carbons 6 and 8 have been reversed.
(1-13C)Glycerol, D-(1-13C)arabinitol, D-(1-13C)ribitol, D-(1-13C)xylitol, D-(1-13C)glucitol, D-(1-13C)mannitol, and D-(1-13C)talitol have been prepared by NaBH4 reduction of the corresponding (1-13C)aldoses. A comparison of the 1H- (300 and 620 MHz) and 13C (75 MHz) n.m.r. spectra of natural and (1-