Stereocontrolled Synthesis of β‐Amino Alcohols from Lithiated Aziridines and Boronic Esters

β-Amino alcohols have been prepared with high selectivity by the addition of lithiated aziridines to boronic esters. The regioselectivity of lithiation for aryl aziridines is sensitive to the reaction conditions and to the base employed. This response was exploited to give either class of β-amino alcohols (see scheme; Boc=tert-butoxycarbonyl, Bus=tert-butylsulfonyl, LTMP=lithium 2,2,6,6-tetramethylpiperidide, pin=pinacolato). Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.