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Influence of the spatial position of a trifluoromethyl group on the 13C chemical shifts in the cyclohexane series

✍ Scribed by Yvan Carcenac; Patrick Diter; Claude Wakselman; Marc Tordeux

Publisher: John Wiley and Sons
Year: 2006
Tongue: English
Weight: 210 KB
Volume: 44
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1804

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✦ Synopsis

Abstract

The influence of the introduction of a trifluoromethyl group on the ^13^C chemical shifts in cyclohexane was examined. The two main effects observed are located at the α and γ positions relative to the carbon bearing the fluorine atoms. By comparison of the collected data it was possible to calculate the increments corresponding to the substitution of a hydrogen atom by a CF~3~ group at axial or equatorial positions on the cyclohexane ring. Copyright © 2006 John Wiley & Sons, Ltd.

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