Highly unusual conversion of 1-alkyl-2-(bromomethyl)aziridines into 1-alkyl-2-(N-alkyl-N-ethylaminomethyl)aziridines using methyllithium
2007
D'hooghe, Matthias | Kimpe, Norbert de
1-Alkyl-2-(bromomethyl)aziridines were transformed into 1-alkyl-2-(N-alkyl-N-ethylaminomethyl)aziridines upon treatment with 2–3 equiv. of methyllithium in THF or Et₂O; the peculiarity in this transformation comprises the presence of an N-ethyl group in the end-products as well as the total number of carbon atoms, resulting from a highly unusual reaction course with a novel SN2′-type substitution at the aziridine moiety and liberation of acetylene from an intermediate vinylamine as the key reaction steps.
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