The reaction of triorganozincates with (R)-N-(tert-butanesulfinyl) imines gives the expected α- branched sulfinamides in good to excellent yields with diastereomeric ratios of up to 98: 2. The N-sulfinyl group of the products can be easily removed by acidic treatment, affording the corresponding chiral primary amines in enantiomeric excesses of up to 96%. The reactivity and the selectivity shown by the triorganozincates are different from the ones observed ...
