Add time:08/03/2019         Source:sciencedirect.com

Asymmetric dihydroxylation of mono nitrophenyl allyl ethers leads to the corresponding non-racemic 3-(nitrophenoxy)-propane-1,2-diols 1a–c. As this takes place, regardless of the reagent used (AD-mix-α or AD-mix-β), the configuration of the predominant enantiomer for the para- and meta-nitrosubstituted products is opposite to the configuration of the ortho-nitrophenyl derivative. A correlation between the melting points and vibrational spectra of the racemic and enantiopure diols 1a–c allowed us to establish that all of the chiral substances investigated formed stable racemic compounds in the solid phase.

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