Sulfonyl halide

Sulfonic acid halides, sulfonyl halides also called, are a group of substances in organic chemistry, containing a sulfonyl group, which is linked by a single bond to a halogen atom. They have the general formula R- SO2 -X is a halogen X.

Sulfonsäurefluoride

Sulfonsäurefluoride, also called sulfonyl, have the general formula R- SO2 - R and are used as starting materials in the syntheses. Thus, the most industrially produced perfluorooctanesulfonyl derivatives, such as PFOS, prepared from a Sulfonsäurefluorid.

Sulfonyl chlorides

Sulfonyl chlorides, also called sulfonyl, have the general formula R- SO2 -Cl. They react with nucleophiles such as alcohols, primary or secondary amines (see Hinsberg separation). If the nucleophile is an alcohol, a sulfonic acid ester is formed. If the nucleophile is an amine, the result is a sulfonamide. Important sulfonyl chlorides are the tosyl chloride, the Brosylchlorid, the Nosylchlorid and mesyl chloride. The synthesis of sulfonyl chlorides is usually about the Reed reaction. Sulfonyl chlorides are moisture sensitive.