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A novel assignment method in the 13C NMR spectroscopy of coumarins and furocoumarins

✍ Scribed by Helmut Duddeck; M. Hanni A. Elgamal; Faten K. Abd Elhady; Nagwa M. M. Shalaby

Publisher
John Wiley and Sons
Year
1980
Tongue
English
Weight
117 KB
Volume
14
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The signal shifts caused by replacing the carbonyl oxygen by sulphur represent a valuable method of assignment of the ^13^C NMR signals in coumarins and furocoumarins substituted at the benzoic and furanoic rings.

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