Synthesis of α,α-Difluoromethylene Amines from Thioamides Using Silver Fluoride.

We developed a mild, rapid process employing AgF and thioamides to produce α,α-difluoromethylene amines efficiently. This method exhibited remarkable tolerance toward various functional groups present in N -sulfonylthioamides, thereby broadening the scope of difluoromethylene sulfonamides through a straightforward approach. Additionally, we applied this approach to synthesize various perfluoroalkyl amines, establishing practical synthetic routes for exploring these compounds in pharmaceutical chemistry and materials science.