✦ LIBER ✦

Conformational studies by nuclear magnetic resonanceVI: CC and CN rotation barriers in various enamine derivatives

✍ Scribed by Janusz Dabrowski; Lech Kozerski

Publisher: John Wiley and Sons
Year: 1973
Tongue: English
Weight: 222 KB
Volume: 5
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1270051005

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Delocalisation of the nitrogen lone electron pair by an acyl and acylvinylogue group simultaneously, results in a lowering of both CN rotational barriers. MeC(O)CBrCHNMe~2~ and MeC(O)C(OCOMe)CHNMe~2~ exhibit restricted rotation around what is formally a double bond CC.

📜 SIMILAR VOLUMES

Conformational studies by nuclear magnet

Conformational studies by nuclear magnetic resonance. VII—The direct observation of rotational isomers in some enamino carbonyl compounds and their thione derivatives by carbon magnetic resonance

✍ Janusz Da̧browski; Krystyna Kamieńska-Trela; Lech Kozerski 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 English ⚖ 348 KB 👁 1 views

## Abstract Carbon‐13 magnetic resonance spectra of the s‐__cis__ and s‐__trans__ rotamers of enamino ketones and thiones of the general formula \documentclass{article}\pagestyle{empty}\begin{document}${\rm X =}\mathop {\rm C}\limits^{\rm 1} {\rm (}\mathop {\rm R}\limits^{\rm 1} {\rm)}\mathop {\rm