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The conformational analysis of aromatic methoxyl groups from carbon-13 chemical shifts and spin-lattice relaxation times

✍ Scribed by Alexandros Makriyannis; James J Knittel

Publisher
Elsevier Science
Year
1979
Tongue
French
Weight
233 KB
Volume
20
Category
Article
ISSN
0040-4039

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✦ Synopsis

In a series of polymethoxy benzaldehydes and acetophenones it was found that diorthosubstitution distorts the Ar-OCH3 conformation. This distortion is accompanied by a downfield shift in the corresponding methoxyl 13C frequencies and an increase in their spin-lattice relaxation times.

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