Disclosed herein are compounds of formula ArN(SO.sub.2F).sub.2, wherein Ar is selected from an optionally substituted aryl, an optionally substituted five-membered heteroaryl, or an optionally substituted six-membered heteroaryl. Also disclosed are methods of synthesizing the above compounds by reacting a compound of formula ArNHR.sub.9 with MN(SO.sub.2F).sub.2.

The invention provides novel compounds and methods that are useful in promoting reactions that proceed through an oxidative quenching pathway. In certain embodiments, the reactions comprise atom transfer radical polymerization.

The invention provides novel compounds and methods that are useful in promoting reactions that proceed through an oxidative quenching pathway. In certain embodiments, the reactions comprise atom transfer radical polymerization.

Process for converting a carboxamide to a thiocarboxamide includes reacting (a) a substrate that comprises a heteroatom-containing moiety and a carboxamide moiety with (b) a dialkyl dithiophosphate and/or a salt thereof. The heteroatom-containing moiety includes a heteroatom selected from the group consisting of N, O, and S. Processes for preparing piperidine-4-thiocarboxamide are described.

Process for converting a carboxamide to a thiocarboxamide includes reacting (a) a substrate that comprises a heteroatom-containing moiety and a carboxamide moiety with (b) a dialkyl dithiophosphate and/or a salt thereof. The heteroatom-containing moiety includes a heteroatom selected from the group consisting of N, O, and S. Processes for preparing piperidine-4-thiocarboxamide are described.