A convenient synthesis of sulfonamides and sulfonylazidesfromthiols is described. In situ preparation of sulfonyl chlorides fromthiols was accomplished by oxidation with chloramine‐T (=N‐chlorotosylamide=N‐chloro‐4‐methylbenzenesulfonamide), tetrabutylammonium chloride (Bu4NCl), and H2O. The sulfonyl chlorides were then further allowed to react with excess amine or NaN3 in the same pot.
A convenient synthesis of sulfonamidesand sulfonylazidesfromthiols is described. In situ preparation of sulfonyl chlorides fromthiols is accomplished by oxidation with N-chlorosuccinimide (NCS), tetrabutylammonium chloride, and water. The sulfonyl chlorides are then further allowed to react with excess amine or sodium azide in the same reaction vessel.