It is known from the literature that some racemization of enantiomerically pure aldehydes occurs during the DIBAL-H treatment. Although we have demonstrated earlier that no loss of enantiomeric purity was observed in the synthesis of anti-β-amino alcohols [16], we submitted commercially available DL-alanine to the aforementioned one- pot procedure to give rac-2a. Both rac-2a and 2a were analyzed by chiral HPLC. The analysis confirmed that the enantiomeric purity was not affected by the process.