A new method for synthesis of alkylidene sulfones via direct alkylidenating reaction of ketones with Gem-dibromomethyl sulfones promoted by the Sm/SmI2 system in the presence of a catalytic amount of CrCl3
Alkylidene sulfones were prepared in moderate to good yields via direct alkylidenating reaction of ketones with geminal dibromomethyl sulfones promoted by Sm/SmI2 system in the presence of a catalytic amount of CrCl3 under mild conditions.