15294-84-5Relevant articles and documents
Copper-Catalyzed Coupling of Sulfonamides with Alkylamines: Synthesis of (E)-N-Sulfonylformamidines
Gou, Quan,Liu, Zining,Cao, Tuanwu,Tan, Xiaoping,Shi, Wenbing,Ran, Man,Cheng, Feixiang,Qin, Jun
, p. 2092 - 2102 (2020)
Herein, we describe an efficient copper-catalyzed coupling of sulfonamides with alkylamines to synthesize (E)-N-sulfonylformamidines. The reaction is accomplished under mild conditions without the use of a corrosive acid or base as an additive. It tolerat
Synthesis of Aryl- and Hetarylpyrazoles
Timari, G.,Hajos, Gy.,Messmer, A.,Gelleri, A.
, p. 1037 - 1040 (1988)
Hetaryldieneamines (1) react with sulfonyl azides to give 3-hetarylpyrazoles (5).Similarly, N,N-dimethyl-4-phenyldieneamine-2-carboxylic acid methyl ester (6) affords 3-phenylpyrazole-5-carboxylic acid methyl ester (7). - Keywords: Cycloaddition; Dieneami
Catalyst-free one-pot, four-component approach for the synthesis of di- And tri-substituted: N -sulfonyl formamidines
Liu, Ai-Ran,Zhang, Lei,Li, Jiao,Wusiman, Abudureheman
, p. 15161 - 15166 (2021/05/19)
A straightforward one-pot, multicomponent approach was developed to synthesize di- and tri-substituted N-sulfonyl formamidines from sulfonyl chlorides, NaN3, ethyl propiolate, and primary/secondary amines under mild conditions without catalysts or additives. Structural analysis of the di-substituted sulfonyl formamidines indicated formation of the E-syn/anti isomeric form. Tri-substituted analogues only formed E-isomers.
Electrochemically generatedN-iodoaminium species as key intermediates for selective methyl sulphonylimination of tertiary amines
Huang, Binbin,Yang, Chao,Zhou, Jia,Xia, Wujiong
supporting information, p. 5010 - 5013 (2020/05/18)
Reported herein is a straightforward protocol for approachingN-sulphonylamidinesviaan electricity-driven, iodine-mediated cross dehydrogenative condensation (CDC) between sulphonamides and tertiary amines, which features exclusive N-CH3selectivity for the amine partners. Mechanistic studies indicate that anin situgeneratedN-iodoaminium species serves as the key intermediate.