SEARCH Articles Figures Tables 1-Sulfonyl-l,2,3-triazoles 4-Aryl-1 -sulfonyl-1, 3-triazoles Mesitylene sulfonyl-3-nitro-triazole Mesitylene sulfonyl-3-nitro-triazole MSNT) Mesitylene-2-sulfonyl)-3-nitro-l,2,4-triazole (MSNT) Sulfonyl Triazoles as Stable Carbene Precursors