Bulletin of the Chemical Society of Japan p. 4468 - 4470 (1987)
Update date:2022-08-25
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Hoshino, Yukio
Takeno, Noboru
Rates of the dehydrogenation of 2'-substituted flavanones with 2,3-dichloro-5,6-dicyano-p-benzoquinone were measured by means of HPLC analyses.All substituents at the ortho position of the side-chain phenyl group of flavanones showed a retarding effect on the reaction.A correlation analysis for the ortho effect using the linear combination model has led to a conclusion that the inductive effect is much more important than the steric and the resonance effect, and that the steric effect is slightly greater than the resonance effect.
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Doi:10.1021/jf60183a022
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