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

Willem R. | Zendy; Hoogzand C. | Zendy

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

Author(s) -

Willem R.,

Hoogzand C.

Publication year - 1979

Publication title -

organic magnetic resonance

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0030-4921

DOI - 10.1002/mrc.1270120202

Subject(s) - spectral line , spectroscopy , chemistry , nuclear magnetic resonance spectroscopy , nmr spectra database , order (exchange) , ring (chemistry) , nuclear magnetic resonance , crystallography , stereochemistry , physics , organic chemistry , quantum mechanics , astronomy , finance , economics

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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