In this paper, we have demonstrated that Red-Al is an efficient chelation-controlled reducing reagent for acyclic acetal (i.e., MOM, MEM, SEM, and BOM) protected alpha-hydroxy ketones. Typically, diastereomeric ratios (dr) ranged from 5 to 20:1 for the 1,2- anti-diols in good to excellent yields.
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The corresponding record at NLM can be accessed at https://www.ncbi.nlm.nih.gov/pubmed/18357999