𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Carbon-13 nuclear magnetic resonance spectra: V—substituent interactions at 4-substituted adamantanones and bicyclo[2.2.2]octanones

✍ Scribed by Helmut Duddeck; Peter Wolff

Publisher
John Wiley and Sons
Year
1977
Tongue
English
Weight
472 KB
Volume
9
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The ^13^C n.m.r. data of a variety of 4~eq~‐ and 4~ax~‐substituted adamantanones and bicyclo[2.2.2]octanones are presented. It is shown that for a number of carbons the chemical shifts cannot be predicted by a given additivity rule. The deviations of the observed chemical shifts from the calculated ones are discussed in terms of different interaction mechanisms operating through the σ bond frameworks or through space.

📜 SIMILAR VOLUMES

Carbon-13 nuclear magnetic resonance spe
Carbon-13 nuclear magnetic resonance spectra of some methyl and phenyl substituted 2H-azirines
✍ Kazuaki Isomura; Hiroshi Taniguchi; Masaaki Mishima; Mizue Fujio; Yuho Tsuno 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 English ⚖ 340 KB

## Abstract Carbon‐13 n.m.r. spectra have been obtained for some methyl and phenyl substituted 2__H__‐azirines. The higher field resonance of C‐2 than that of the corresponding aziridine carbon is interpreted in terms of ring strain. Substituent effects on the chemical shifts of the azirine ring ca