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1H magnetic resonance spectroscopy of some substituted acetophenones

✍ Scribed by J. Bloxsidge; J. R. Jones; R. E. Marks

Publisher
John Wiley and Sons
Year
1970
Tongue
English
Weight
141 KB
Volume
2
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Measurements are reported on the nuclear magnetic resonance spectra of the acetyl protons of a series of substituted acetophenones. Although the extreme values of the chemical shifts, δ for the meta‐ and para‐ substituted compounds differ only by 0·2 units, the values themselves are linearly related to the Hammett substituent constants. No such relationship exists for the ortho‐substituted compounds. The magnitude of the chemical shift is independent of substrate concentration over a five‐fold variation.

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