Diastereomer-Differentiating Hydrolysis of 1,3-Diol-Acetonides: A Simplified Procedure for the Separation of <i>syn</i>- and <i>anti</i>-1,3-Diols
作者:Silke E. Bode、Michael Müller、Michael Wolberg
DOI:10.1021/ol017223u
日期:2002.2.1
[GRAPHICS]A new method to facilitate the separation of diastereomeric syn- and anti-1,3-diols is described. The method relies on the different hydrolysis rates of the corresponding diastereomeric acetonides. Treatment of a dichloromethane solution of syn- and anti-1,3-diol-acetonide with a catalytic amount of diluted aqueous hydrochloric acid leads to the selective cleavage of the anti diastereomer. The resulting anti-1,3-diol can be easily separated from the unchanged syn-1,3-diol-acetonide.