Abstract
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.
ACKNOWLEDGMENTS
We thank the National Natural Science Foundation of China (Project No. 29872010 and 294938004) and the Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, for financial support.