engleski

Highly Enantioselective Aziridination of N-Protected Imines : Comparison of the Phosphazene EtP2 and Sodium Hydride as Bases

Asymmetric synthesis of 2, 3-disubstituted N-Boc, N-SES, and N-Ts aziridines starting from N-protected imines, using sulfonium salt derived from Eliel’ s oxathiane, is reported. Sodium hydride was successfully used as a substitute for the phosphazene base EtP2 without any loss of yield, enantioselectivity, or diastereoselectivity.

asymmetric synthesis ; aziridines ; enantioselectivity ; imine ; ylide

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