𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The 1H, 13C and 31P NMR spectra of EZ pairs of some phosphorus substituted alkenes

✍ Scribed by Mark Duncan; Michael J. Gallagher

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
512 KB
Volume
15
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis

The olefins Ph,P(X)CH=CHR [X=lone pair, 0, S, CH31; R=CH3, Ph, P(X)PhJ have been prepared and their 'H, 13C and "P N M R spectra measured. trans 'qP(IV)C] (range 18.3-25.7HzI is greater than cis 3J[P(IV)C] (range 6.9-11 Hz) but this relationship does not hold for P(II1) compounds. In the "P spectra the E isomer absorbs to higher field than the Z isomer for P(II1) and P(IV) compounds. The 'H data are in accord with previous results; average substituent shielding coefficients for Ph,P(X) substituted alkenes are reported.

📜 SIMILAR VOLUMES

13C, 31P and 1H NMR of some dioxaphosphi
13C, 31P and 1H NMR of some dioxaphosphinopyridines and pyridoazaphosphinines
✍ Amadéo Ferreira; Muriel Bigan; Dominique Blondeau 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 66 KB 👁 1 views

The 13 C, 31 P and 1 H NMR spectra of a series of dioxaphosphinopyridines and pyridoazaphosphinines were studied. The interpretation of the chemical shifts of these compounds was based on model compounds and on selective irradiation and two-dimensional shift correlated NMR techniques.

Determination of 31P,31P coupling consta
Determination of 31P,31P coupling constants in cyclotriphosphazenes and their influence on 1H and 13C NMR spectra of phosphorus substituents
✍ Virginie Vicente; Alain Fruchier; Henri-Jean Cristau 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 248 KB

## Abstract ^1^H and ^13^C NMR spectra of symmetrically substituted cyclotriphosphazenes exhibit second‐order effects. The influence of the ^31^P,^31^P coupling constants between ring phosphorus atoms on these effects was studied. Some values of this coupling constant between phosphorus bearing ide

13C and 31P NMR spectra of 1-diethylphos
13C and 31P NMR spectra of 1-diethylphosphono-1-hydroxycycloalkanes
✍ G. W. Buchanan; K. Bourque; A. Seeley 📂 Article 📅 1986 🏛 John Wiley and Sons 🌐 English ⚖ 220 KB

13C and 31P NMR chemical shifts and '3C-31P couplings are reported for a series of thirteen l-diethylphosphono-lhydroxycycloalkanes and their alkyl derivatives with carbocyclic ring sizes varying from four to twelve.

1H and 13C NMR spectra of some 2-substit
1H and 13C NMR spectra of some 2-substituted 4,5-dimethylfurans
✍ Miloslava Dandárová; Daniel Végh 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 202 KB

## Abstract ^1^H and ^13^C NMR spectra of 22 2‐substituted 4,5‐dimethylfurans are reported. The __J__(C, H) values were used for signal assignments and for the identification of geometrical isomers of some derivatives.

Complete assignments of the 1H and 13C N
Complete assignments of the 1H and 13C NMR spectra of some fluoro-substituted chromenes
✍ Claude Barberis; Myléne Campredon; Vladimir Lokshin; Gérard Giusti; Robert Faure 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 159 KB

## Abstract The total assignment of the ^1^H and ^13^C NMR spectra of four fluoro‐substituted chromenes was deduced from the concerted application of homonuclear correlation (COSY), ^1^H‐detected one‐bond heteronuclear multiple quantum coherence (HMQC) and long‐range (two and three bonds) heteronuc