CHBr3/TiCl4/Mg as an unusual nucleophilic CBr 2 carbenoid: Effective and chemoselective dibromomethylenation of aldehydes and ketones
We report that instead of using CBr4, CHBr3 can serve as a highly nucleophilic dibromomethylene carbenoid in chemoselective carbonyl dibromomethylenation. Successful application of the dibromomethylenation to various carbonyl compoun