Asymmetric hydrogenation INDEX

Some cases are known in which optically active catalysts affect the reactions of the d- and Z-forms of the optically active substrates differently, although the asymmetrical carbon atom is situated in the extra-index substituent and therefore its bonds do not change in the course of reaction. Thus in the experiments of Ponomarev and Zelen-kova (280) on the course of hydrogenation of l-(a-furyl)-butanol-3. 

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