Synthetic Approach toward Enantiopure Cyclic Sulfinamides

A synthetic approach toward densely substituted enantiopure cyclic sulfinamides possessing up to four consecutive stereogenic centers was developed based on a completely diastereoselective S_N2′ cyclization/<i>tert</i>-Bu cleavage sequence. Diastereospecific transformation of the obtained scaffold into chiral S^VI derivatives such as sulfoximines and sulfonimidamides is demonstrated.