✦ LIBER ✦

Conformational studies of some 2-phenylpropyl derivatives by NMR spectroscopy and use of lanthanide shift reagents

✍ Scribed by S.L. Spassov; R. Stefanova

Publisher: Elsevier Science
Year: 1977
Tongue: English
Weight: 473 KB
Volume: 42
Category: Article
ISSN: 0022-2860
DOI: 10.1016/0022-2860(77)87033-6

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

1H NMR separation of epimeric mixtures b

1H NMR separation of epimeric mixtures by lanthanide shift reagents: Analysis of some isoxazolidine derivatives

✍ P. Bucci; G. Chidichimo; A. Liguori; G. Menniti; N. Uccella 📂 Article 📅 1984 🏛 John Wiley and Sons 🌐 English ⚖ 300 KB 👁 1 views

Epimeric mixtures of isoHazolidine derivatives were investigated by ' H NMR spectra obtained in the presence of lanthanide shift reagents. The NMR signals of all the components contained in a mixture of 2 , 3 -d i p n e n y l -S -c e ~y ~~~~e s were identified and the LISCA computer program enabled

Conformational analysis of 2-butanone an

Conformational analysis of 2-butanone and 3-methyl-2-butanone using lanthanide shift reagents

✍ Kenneth L Servis; Feng Fang Shue 📂 Article 📅 1980 🏛 Elsevier Science ⚖ 634 KB

Enantiomeric differentiation of acyclic

Enantiomeric differentiation of acyclic terpenes by 13C NMR spectroscopy using a chiral lanthanide shift reagent

✍ Marie-Cécile Blanc; Pascale Bradesi; Joseph Casanova 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 93 KB

The 13C NMR behaviour of ten acyclic terpene alcohols was examined in the presence of a chiral lanthanide shift reagent (CLSR). For each alcohol, we measured the lanthanide-induced shift (LIS) on the signals of the carbons and the splitting of some signals, which allowed the enantiomeric differentia

Comparative conformational studies of cy

Comparative conformational studies of cyclic derivatives by 13C NMR spectroscopy

✍ Joseph Casanova; Jean-Pierre Zahra; Bernard Waegell 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 English ⚖ 315 KB

## Abstract The ^13^C chemical shift of the substituted or functionalized carbon of various medium and large rings is plotted against ring size (6–15 carbons). The curves thus obtained allow a conformational analysis of the corresponding derivatives.

Use of lanthanide shift reagents to prob

Use of lanthanide shift reagents to probe the conformation of fatty acids in solution by 13C NMR

✍ Miquel Pons; Dennis Chapman 📂 Article 📅 1986 🏛 John Wiley and Sons 🌐 English ⚖ 460 KB

The conformational analysis of short polymer chains involves the use of statistical models, and their predictions must be checked against experimental information. Ytterbium-induced shifts in the "C NMR spectra of fatty acids provide a non-perturbing, straightforward method of simultaneously obtaini

Optical purity determination by NMR: Use

Optical purity determination by NMR: Use of chiral lanthanide shift reagents and a base line technique

✍ G. H. Dewar; J. K. Kwakye; R. T. Parfitt; R. Sibson 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 540 KB

of the following in a volume of 1 liter: naphthalene (150 g), 2,5-diphenyloxazole (8 g), 1,4-bis(4-methyl-5-phenyl-oxazol-2-yI)benzene (0.6 g), ethylene glycol (20 ml), 2-ethoxyethanol(lOO ml), and toluene to make 1 liter. The radioactivity was measured in the liquid scintillation counter with an 18