Primary amine-salicylamides derived from chiral -cyclohexane-1,2-diamines are used as organocatalysts for the enantioselective conjugate addition of α,α-disubstituted aldehydes to arylated and heteroarylated nitroalkenes. The reaction is performed in the presence of 4-dimethylaminopyridine as an additive in dichloromethane as a solvent at room temperature. The corresponding enantioenriched γ-nitroaldehydes are obtained with enantioselectivities up to 95%. Theoretical calculations are used to justify the reasons of the stereoinduction.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6017890PMC
http://dx.doi.org/10.3390/molecules23010141DOI Listing

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