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The dynamic stereochemistry of dimesityl-2,4,6-trimethoxyphenylmethane: A 1H NMR study at 270 MHz

✍ Scribed by R. Willem; C. Hoogzand

Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
448 KB
Volume
12
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The spectral behaviour of dimesityl‐2,4,6‐trimethoxyphenylmethane (1) was examined by ^1^H NMR spectroscopy at 270 MHz in order to resolve an isochrony of resonances observed in the low temperature spectra of 1 at 60 MHz. At 270 MHz the spectra of 1 exhibit well resolved o‐methyl resonances at low temperature so that the two‐ring flip mechanism, previously proposed as the threshold mechanism by Mislow et al., receives new independent experimental support.

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