29912-59-2Relevant articles and documents
N -Sulfonyl acetylketenimine as a highly reactive intermediate for the synthesis of N -sulfonyl amidines
Yang, Weiguang,Huang, Dayun,Zeng, Xiaobao,Luo, Dongping,Wang, Xinyan,Hu, Yuefei
supporting information, p. 8222 - 8225 (2018/07/29)
A highly reactive intermediate N-sulfonyl acetylketenimine was generated from a 3-butyn-2-one participating CuAAC/ring-opening method. Its high reactivity due to bearing two EWGs allowed us to offer the first example of a reaction between ketenimine and amide to synthesize N-sulfonyl amidines efficiently.
Mild reductive functionalization of amides into N-sulfonylformamidines
Trillo, Paz,Slagbrand, Tove,Tinnis, Fredrik,Adolfsson, Hans
, p. 484 - 487 (2018/08/17)
The development of a protocol for the reductive functionalization of amides into N-sulfonylformamidines is reported. The one-pot procedure is based on a mild catalytic reduction of tertiary amides into the corresponding enamines by the use of Mo(CO)6 (molybdenum hexacarbonyl) and TMDS (1,1,3,3-tetramethyldisiloxane). The formed enamines were allowed to react with sulfonyl azides to give the target compounds in moderate to good yields.
Direct condensation of sulfonamide and formamide: NaI-catalyzed synthesis of N-sulfonyl formamidine using TBHP as oxidant
Chen, Shulin,Xu, Yuan,Wan, Xiaobing
supporting information; experimental part, p. 6152 - 6155 (2012/01/03)
A new N-sulfonyl formamidine synthesis was developed via NaI-catalyzed direct condensation of sulfonamide and formamide. The green methodology is featured by high atom economy, easily available starting materials, the lack of need for a transition-metal c