Asymmetric direct aldol reactions catalyzed by chiral amine macrocycle–metal(ii) complexes under solvent-free conditions?

New Journal of Chemistry Pub Date: 2013-06-28 DOI: 10.1039/C3NJ00361B

Abstract

Solvent-free asymmetric aldol reactions between cyclohexanone and 4-nitrobenzaldehyde using chiral amine macrocycle–metal(II) complexes as catalysts in a ball mill afforded the anti-aldol product as the major isomer with up to 93% ee.

Graphical abstract: Asymmetric direct aldol reactions catalyzed by chiral amine macrocycle–metal(ii) complexes under solvent-free conditions
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