Abstract

Optically pure tert-butanesulfinyl aldimines 1 were ­prepared by direct condensation of chiral tert-butanesulfinamide 3 with aldehydes 2 in high yields in the presence of KHSO4. The main advantage of KHSO4 is that it is applicable to the condensation ­reactions of a variety of aldehydes, including electron deficient and electron rich (hetereo)aromatic aldehydes, as well as aliphatic aldehydes.

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