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17O NMR studies on (E)-3-arylidenechromanone and -flavanone derivatives

✍ Scribed by Gábor Tóth; András Simon; Albert Lévai; Hanspeter Kählig; Hermann Kalchhauser

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
94 KB
Volume
39
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

^17^O NMR data for some 3‐arylidenechromanones and ‐flavanones are discussed in terms of mesomeric and steric substituent interactions. The transmission of long‐range substituent effects was studied. ^17^O NMR chemical shifts were correlated with Hammett σ~p~^+^ values for 4′‐substituted derivatives. Copyright © 2001 John Wiley & Sons, Ltd.

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