𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Structural elucidation of disubstituted nortricyclenes through vicinal 13C, 1H coupling constants

✍ Scribed by I. D. Gridnev; I. F. Leshcheva; N. M. Sergeyev; V. A. Chertkov


Book ID
102524864
Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
469 KB
Volume
30
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

Vicinal ^13^C, ^1^H coupling constants were used to establish the configuration of a 3,5‐disubstituted notricyclene. The assignment procedure is supported by independent measurements of ^13^C, ^2^H coupling constants in 3‐ deuterionortricyclene and confirmed by ^1^H, ^1^H NOE data for exo‐3‐N‐acetylamino‐exo‐5‐pivaloylnortricyclene.


📜 SIMILAR VOLUMES


13C, 1H spin coupling constants of dimet
✍ Kikuko Hayamizu; Osamu Yamamoto 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 English ⚖ 171 KB

## Abstract ^13^C, ^1^H spin coupling constants of dimethylacetylene have been determined by the complete analysis of the proton coupled ^13^C NMR spectrum. For the methyl carbon ^1^__J__(CH) = + 130.6~4~ Hz and ^4^__J__(CH) = + 1.5~8~ Hz, and for the acetylenic carbon ^2^__J__(CH) = − 10.34 Hz and

Vicinal 13C13C spin–spin coupling consta
✍ James L. Marshall; Shareen A. Conn; Michael Barfield 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 English ⚖ 376 KB

## Abstract A series of (>90% isotopic purity) ^13^C‐labeled aliphatic alcohols of the general structure CCC^13^COH were synthesized and studied by ^13^C n.m.r. to obtain all ^13^C^13^C couplings involving the labeled carbon. The ^2^__J__(CC) values were small (<0.5 Hz) and contrast with the l

The structural dependence of vicinal 13C
✍ Martin Klessinger; Jung-Hyuck Cho 📂 Article 📅 1983 🏛 John Wiley and Sons 🌐 English ⚖ 193 KB

The dependence of three-bond "GUC couplings of cis-butane and cis-butene on the valence angle, the torsional angle of the methyl groups and methyl and methylene substituents is discussed on the basis of INDO-SCPT calculations. The results support the interpretation of the experimental couplings betw

Effect of the orientation of an α-substi
✍ Aart A. van Beuzekom; Frank A. A. M. de Leeuw; Cornelis Altona 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 708 KB

## Abstract The magnitude of the NMR spin‐spin coupling constant, ^3^__J__(CH), between a vicinal ^13^C–^1^H pair depends, __inter alia__, on the value of the torsion angle Φ~CH~(^13^CCCH) and is influenced by the presence of an electronegative substituent located on the coupling ^13^C nucleus.