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Physicochemical study of 3'- and 4'-substituted 2-hydroxy-5-methylbenzophenone

M. Kulíčková, P. Sláma, and P. Hrdlovič

Polymer Institute, Slovak Academy of Sciences, 809 34 Bratislava

 

Abstract: UV, ionization consts. (pK'), and proton chem. shifts of the hydroxyl group δ(OH) of eight 3'- and 4'-substituted 2-hydroxy-5-methylbenzophenones were measured. A satisfactory σ/ρ correlation for pK' and δ(OH) was found. However, the slope value of these relations indicated that the transfer of electronic effect was ∼5 times smaller than that in the case of substitution on the ring bearing the OH.

Full paper in Portable Document Format: 335a630.pdf

 

Chemical Papers 33 (5) 630–635 (1979)

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