Conversion of methyl ketones and methyl sulfones into α-deutero-α,α-difluoromethyl ketones and α-deutero-α,α-difluoromethyl sulfones in three synthetic steps
作者:Munia F. Sowaileh、Changho Han、Robert A. Hazlitt、Eun Hoo Kim、Jinu P. John、David A. Colby
DOI:10.1016/j.tetlet.2016.12.018
日期:2017.2
Deuterodifluoromethyl ketones and sulfones were assembled in three synthetic steps from methylketones and sulfones, respectively. The key synthetic transformation is the deuteration of the difluorocarbanion generated by the release of trifluoroacetate from highly α-fluorinated gem-diols. High levels of deuterium on the "CF2D" group were routinely observed. This strategy is mild and versatile and it