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Polar substituent effects on 13C NMR spectra in ethyl cis-2-substituted cyclopropane carboxylates

✍ Scribed by Yoshiaki Kusuyama; Satoru Inoshita; Ginjiro Okada; Minoru Yanagi; Kenjiro Tokami; Hiroshi Fuchu; Yuho Tsuno; Masaaki Mishima

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
212 KB
Volume
20
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

^13^C FT NMR spectra of ethyl cis‐2‐substituted cyclopropanecarboxylates were obtained in chloroform‐d and the chemical shifts were compared with those of the corresponding trans isomers. In most cases, the resonances for the ring carbons and the carbonyl group carbon appeared further upfield than those of the trans isomers, and were found to be useful for distinguishing the stereoisomeric 1,2‐disubstituted cyclopropanes.

📜 SIMILAR VOLUMES

Substituent effects on the 13C NMR spect
Substituent effects on the 13C NMR spectra of ethyl cis- and trans-2-(p-substituted-phenyl)-1-cyclopanecarboxylates
✍ Yoshiaki Kusuyama; Kenjiro Tokami 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 181 KB 👁 1 views

## Abstract ^13^C NMR spectra were measured for a series of ethyl __cis__‐ and __trans__‐2‐(__p__‐substituted ‐ phenyl) ‐ 1 ‐ cyclopropanecarboxylates. The effects of the __para__ substituents and the geometry on the chemical shifts are discussed.