29397-20-4Relevant articles and documents
Visible-light enabled room-temperature dealkylative imidation of secondary and tertiary amines promoted by aerobic ruthenium catalysis
Yang, Dong,Shi, Jingqi,Chen, Jiaming,Jia, Xiaoqi,Shi, Cuiying,Ma, Lifang,Li, Ziyuan
, p. 18966 - 18973 (2021/06/03)
Employing sulfonyl azide as a nitrogen donor, a visible-light-enabled aerobic dealkylative imidation of tertiary and secondary amines involving C(sp3)-C(sp3) bond cleavage with moderate to excellent yields at room temperature is described. It has been demonstrated that this imidation could take place spontaneously upon visible-light irradiation, and could be facilitated considerably by a ruthenium photocatalyst and oxygen. An alternative mechanism to the previous aerobic photoredox pathway has also been proposed.
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.
Transition metal- And catalyst-free one-pot green method for the synthesis of: N -sulfonyl amidines via direct reaction of sulfonyl azides with amines
Aoyama, Hiroshi,Kaboudin, Babak,Kazemi, Foad,Torabi, Saeed
, p. 26701 - 26708 (2020/08/19)
In this report, a green synthesis of N-sulfonyl amidines via the direct reaction of tertiary or secondary amines with sulfonyl azides is described. Transition metal- and catalyst-free conditions were used for the synthesis of biologically important N-sulfonyl amidines. Further studies showed that the reaction proceeded via in situ aerobic oxidation of amines under reflux conditions.