Sigma-Aldrich Benzenesulfinic acid sodium salt

Benzenesulfinic acid sodium salt when treated with alkynylselenonium salts yields (Z)-β-alkoxyvinylsulfones[1]. It undergoes rhodium-catalyzed desulfinative coupling with aldehydes to yield ketones[2].

Benzenesulfinic acid sodium salt has been used in synthesis of sulfones by reaction of organic halides and sodium benzenesulfinate using higher alcohols or diols as solvents[3].It was also used in the synthesis of aryl sulfones via copper-catalyzed cross-coupling with boronic acids[4] and vinyl sulfones via reaction with vicinal dibromides[5].