✦ LIBER ✦

Stereospecific interactions of ketals with tris(dipivalomethanato)europium (III)

✍ Scribed by J.E. Herz; V.M. Rodríguez; P. Josephuhe-Nathan

Book ID: 104247960
Publisher: Elsevier Science
Year: 1971
Tongue: French
Weight: 177 KB
Volume: 12
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)97033-9

No coin nor oath required. For personal study only.

✦ Synopsis

The use of shift reagents for the simplification of proton magnetic resonance spectra received tremendous attention during the last two years 192 . With only few

📜 SIMILAR VOLUMES

Interactions of benzocycloalkenols with

Interactions of benzocycloalkenols with tris(dipivalomethanato)europium

✍ Patrick, Timothy B.; Patrick, Ping H. 📂 Article 📅 1973 🏛 American Chemical Society 🌐 English ⚖ 589 KB

On the Complex Formation of Tris-(dipiva

On the Complex Formation of Tris-(dipivalomethanato)-europium with Pyridine

✍ H. Huber; J. Seelig 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 German ⚖ 221 KB

## Abstract The complexation of the shift reagent tris‐(dipivalomethanato)‐europium with pyridine in deuteriochloroform has been studied by means of ^1^H‐NMR. Shift parameters __S__ = 28.0, 9.9, and 9.2 ppm respectively for pyridine protons 2, 3 and 4 are obtained. The results indicate that the shi

Differentiation of cis and trans isomers

Differentiation of cis and trans isomers of thionocarbamate esters by use of tris(dipivalomethanato)europium(III)

✍ Robert A. Bauman 📂 Article 📅 1971 🏛 Elsevier Science 🌐 French ⚖ 158 KB

Several reports1 have appeared on the usefulness of tria(dipivalaaethanato)europim(IIl) [Eu(DPM)d for simplifying the nmr spectra of alcohols by causingparamagnetic shifts, the magnitude of which depends on the distance of the protons tbrou&bomia or apace f'rmthe europium atom ccmplexed to the oxyg

Simplified NMR spectra of bifunctional t

Simplified NMR spectra of bifunctional tropanes induced by the paramagnetic shift reagent tris(dipivalomethanato)europium(III)

✍ Gary S. Chappell; Bernard F. Grabowski; Robert A. Sandmann; David M. Yourtee 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 English ⚖ 566 KB

I J Tris(dipivalomethanato)e~opium(llI) has beem used as an NMR shift reagent to obtain simpli6ed spectra of tropine, of coordination was secondary amine > secondary alcohol > tertiary amine h ketone. . . .~ systems containing two different heteroatoms. The observed order tra of bifuictionai tropane

Paramagnetic induced shifts in the proto

Paramagnetic induced shifts in the proton magnetic resonance spectra of alcohols using tris(dipivalomethanato)europium(III)

✍ Demarco, Paul V.; Elzey, Thomas K.; Lewis, R. Burton.; Wenkert, Ernest. 📂 Article 📅 1970 🏛 American Chemical Society 🌐 English ⚖ 416 KB

Upfield and downfield shifts in the nucl

Upfield and downfield shifts in the nuclear magnetic resonance spectrum of a tris(dipivalomethanato)europium(III) complex

✍ Paul H. Mazzocchi; Henry J. Tamburin; Gerald R. Miller 📂 Article 📅 1971 🏛 Elsevier Science 🌐 French ⚖ 109 KB

Since their introduction2 the nmr shift reagents, tris(dipivalomethanato)europium(II1) and tris(dipivalomethanato)praseodymium(III), have experienced immediate and marked popularity.