Evidence of existence of two stereospecific control mechanisms in asymmetric transformation of 2-phenylpropanal via enamines.
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概要
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The temperature dependence of asymmetric transformation of 2-phenylpropanal <I>via</I> achiral enamine salt of <I>d</I>-10-camphorsulfonic acid was examined. The relation between the rotation of 2-phenylpropanal obtained and reaction temperature showed a notable change in specific rotation of the aldehyde obtained. Two courses are postulated for the optical activation.
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