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The use of solvent induced methoxy shifts as a guide to hinokiflavone structure.

✍ Scribed by Andrew Pelter; R. Warren; J.N. Usmani; M. Ilyas; W. Rahman

Publisher
Elsevier Science
Year
1969
Tongue
French
Weight
180 KB
Volume
10
Category
Article
ISSN
0040-4039

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Solvent-induced shifts in NMR spectrosco
Solvent-induced shifts in NMR spectroscopy by a combination of benzene and trifluoroacetic acid as an aid to the structure elucidation of isoflavones
✍ Hirday N. Jha; Virinder S. Parmar πŸ“‚ Article πŸ“… 1983 πŸ› Elsevier Science 🌐 English βš– 233 KB

We have observed that the benzene-induced solvent shifts ofcertain methoxyl groups in the NMR spectra of isoflavones are appreciably changed by the addition of a small amount of trifluoroacetic acid to the solution of the isoflavones in a 1: 1 mixture of chloroform and benzene. The methoxyl group at