Abstract
Ring-opening of enantiopure trans and cis 2,3-disubstituted ethynyl Ν-tert-butanesulfinylaziridines by water under acidic conditions proved to be highly regio- and diastereoselective, leading to the corresponding enantiopure anti and syn acetylenic α-amino alcohols. The regio- and stereochemistries were unambiguously determined by NOE experiments through the formation of oxazol-idinone derivatives.
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