53215-95-5Relevant articles and documents
Stereo-, Regio-, and Chemoselective [3 + 2]-Cycloaddition of (2E,4E)-Ethyl 5-(Phenylsulfonyl)penta-2,4-dienoate with Various Azomethine Ylides, Nitrones, and Nitrile Oxides: Synthesis of Pyrrolidine, Isoxazolidine, and Isoxazoline Derivatives and a Computational Study
Sankar, Ulaganathan,Surya Kumar, Ch. Venkata,Subramanian,Balasubramanian,Mahalakshimi
, p. 2340 - 2354 (2016)
One-pot chemo-, regio-, and stereoselective synthesis of series of heterocyclic and spiroheterocyclic compounds was accomplished through mono- and bis[3 + 2]-cycloaddition reactions of (2E,4E)-ethyl 5-(phenylsulfonyl)penta-2,4-dienoate as a dipolarophile with azomethine ylides, nitrones, and nitrile oxides in good yields. The structures of the products were established by spectroscopic techniques as well as by single-crystal XRD study, and DFT calculations were performed to further understand the mechanism of this [3 + 2]-cycloaddition reaction.
A Photocatalyst-Free, SET-Mediated Photochemical Approach for the Synthesis of Dumbbell-Like Amine-Functionalized Bis-C 60 Fullerene through C-C Bond Formation
Atar, Amol Balu
, p. 1462 - 1468 (2019)
A novel method for the synthesis of dumbbell-like amine-functionalized bis-C 60 fullerene from simple bis-α-silyl tertiary benzyl amines and C 60 fullerene is described. The photoreactions between bis-α-silyl tertiary benzyl amines and C 60 furnished single-bonded bis-aminomethyl-1,2-dihyrofullerenes and double-bonded 1,2,5-trisubstituted bis-fulleropyrrolidines through 1,3-dipolar cycloaddition reactions of azomethine ylides under mild conditions.
N-Cyanation of Primary and Secondary Amines with Cyanobenzio-doxolone (CBX) Reagent
Chen, Zimin,Yuan, Weiming
supporting information, p. 14836 - 14840 (2021/09/30)
An efficient electrophilic N-cyanation of amines with a stable and less-toxic cyanobenziodoxole reagent towards the synthesis of cyanamides is disclosed. This synthetically practicable strategy allows the construction of a wide variety of cyanamides under very mild and simple conditions with a broad functional group compatibility, and showcases a huge potential in late-stage modification of complex molecules.
Metal-Free Aminomethylation of Aromatic Sulfones Promoted by Eosin Y
Thierry, Thibault,Pfund, Emmanuel,Lequeux, Thierry
supporting information, p. 14826 - 14830 (2021/10/01)
A metal-free α-aminomethylation of heteroaryls promoted by eosin Y under green light irradiation is reported. A large variety of α-trimethylsilylamines as precursor of α-aminomethyl radical species were engaged to functionalize sulfonyl-heteroaryls following a Homolytic Aromatic Substitution (HAS) pathway. This method has provided a range of α-aminoheteroaryl compounds including a functionalized natural product. The mechanism of this late-stage functionalization of aryls was investigated and suggests the formation of a sulfonyl radical intermediate over a reductive quenching cycle.