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Diastereomeric oxazolinylaziridines (R,R)‐9 and (R,S)‐9 have been regioselectively lithiated at the α‐position with respect to the oxazolinyl ring. The resulting aziridinyllithium compounds proved to be chemically and configurationally stable under the experimental conditions used, thus furnishing, upon trapping with electrophiles, chiral 2,2‐disubstituted aziridines, in contrast to the corresponding...
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