Synthesis of Sulfamides

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The combination of calcium triflimide and DABCO activates sulfamoyl fluorides, fluorosulfates, and sulfonyl fluorides for SuFEx with amines to provide a diverse set of sulfamides, sulfamates, and sulfonamides at room temperature under mild conditions.
S. Mahapatra, C. P. Woroch, T. W. Butler, S. N. Carneiro, S. C. Kwan, S. R. Khasnavis, J. Gu, J. K. Dutra, B. C. Vetelino, J. Bellenger, C. W. am Ende, N. D. Ball, Org. Lett., 2020, 22, 4389-4394.

N-(tert-Butoxycarbonyl)-N-[4-(dimethylazaniumylidene)-1,4-dihydropyridin-1-ylsulfonyl]azanide allowed sulfamoylation of amines under very mild conditions to give sulfamide derivatives in good yields.
J.-Y. Winum, L. Toupet, V. Barragan, G. Dewynter, J.-L. Montero, Org. Lett., 2001, 3, 2241-2243.