Abstract N-Trifluoromethy-N-nitroso-sulfonamide,-amide,-carbamate, and-urea derivatives were synthesized by the reaction of trifluoronitrosomethane with hydroxylamine at low temperature, followed by treatment with a base in the presence of arene-or alkane-sulfonyl halides, acid halides, acid anhydrides, haloformates, or carbamoyl halides.