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1H and 13C NMR study of some (E)-3′-and 4′substituted stilben-4-ols

✍ Scribed by Thomas H. Fisher; Tor P. Schultz

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
269 KB
Volume
29
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

A series of ten (E)‐stilben‐4‐ols, HOPhCHCHPhX, with X = H, 4′‐Cl, 4′‐F, 4′‐Me, 4′;‐OMe, 3′‐Me, 3′‐OMe, 3′‐OH, 3′‐F and 3′,4‐diOMe, were studied using one‐ and two‐dimensional NMR techniques. Interpretation of these spectra led to definitive assignments of all carbon and hydrogen chemical shifts. ^1^H chemical shift increments were quantitatively determined for the five substituents studied, and the para A~i~ value of the styryl group was found to be more deshielding than those recorded in previous reports.

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