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Regioselectivity Change in the Organocatalytic Enantioselective (3+2) Cycloaddition with Nitrones Through Cooperative Hydrogen-Bonding Catalysis/Iminium Activation.
(Wiley-VCH, 2017-01-12)
The reaction of nitrones with enals through iminium
activation can be modulated by using cooperative
hydrogen-bonding catalysis to induce the participation of
a nitrone ylide (C-N-C) instead of the classical C-N-O
dipole. ...