1599461-88-7Relevant academic research and scientific papers
Selective synthesis of 3-Selanylindoles from Indoles and Diselenides using IK/mCPBA system
Li, Hongjie,Wang, Xiaolong,Yan, Jie
, (2017)
In the presence of a catalytic amount of KI combined with oxidant mCPBA, a convenient catalytic procedure is developed for the preparation of 3-selanylindoles from indoles and diselenides. In this protocol, KI is first oxidized by mCPBA into hypoiodous acid, which reacts with diselenide to cleave Se-Se bond. The in situ generated active electrophilic selenium species then reacts with indole, affording 3-selanylindole via an electrophilic substitution mechanism. This catalytic selenation of indoles has mild reaction conditions and is a simple procedure, which extends the synthetic application of KI in organic synthesis.
Preparation method of 3-arylseleno-1H-indoles
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Paragraph 0051; 0052, (2018/06/26)
The invention provides a preparation method of 3-arylseleno-1H-indoles. Specifically, corresponding 3-arylseleno-1H-indoles are generated from aromatic heterocyclic compounds and symmetric diselenidesthrough a reaction in an organic solvent under irradiation of a blue LED lamp, preferably, the reaction is performed in presence of FIrPic (bis(4,6-difluorophenylpyridinato-N,C2)picolinatoiridium). The preparation method is simple and convenient to operate, a reagent is obtained easily, a catalyst is safe and pollution-free, the requirement of green chemistry is met, and the catalyst is stable inproperty and high in catalytic efficiency; yield and purity of 3-arylseleno-1H-indoles prepared with the method are both higher.
Convenient synthesis of selenyl-indoles via iodide ion-catalyzed electrochemical C-H selenation
Zhang, Xing,Wang, Chenguang,Jiang, Hong,Sun, Linhao
supporting information, p. 8781 - 8784 (2018/08/07)
Reported herein is a transition metal- and oxidant-free method for the synthesis of selenyl heteroarenes with diselenides through iodide ion-catalyzed electrolytic selenation. This direct C(sp2)-H selenation strategy, with reduced environmental
Rose Bengal catalysed photo-induced selenylation of indoles, imidazoles and arenes: A metal free approach
Saba, Sumbal,Rafique, Jamal,Franco, Marcelo S.,Schneider, Alex R.,Espíndola, Leandro,Silva, Dagoberto O.,Braga, Antonio L.
supporting information, p. 880 - 885 (2018/02/19)
In this report, the highly efficient Rose Bengal-catalysed C(sp2)-H selenylation of indoles, imidazoles and arenes was achieved using a half molar equiv. of diorganoyl diselenides. This metal-free, photo-induced protocol resulted in selenylated
NaBr mediated regioselective synthesis of 3-Selanylindoles
Li, Hongjie,Wang, Junxing,Wang, Xiaolong,Yan, Jie
, p. 394 - 399 (2018/02/06)
A convenient NaBr mediated procedure is developed for the preparation of 3-selanylindoles from indoles and diselenides. In this protocol, NaBr is first oxidized by mCPBA into molecular bromine, which reacts with diselenide to form RSeBr. The in situ generated active electrophilic selenium species, then reacts with indoles, affording a series of 3-selanylindoles with high regioselectivity and in moderate to good yields.
Visible-light-mediated aerobic selenation of (hetero)arenes with diselenides
Zhang, Qing-Bao,Ban, Yong-Liang,Yuan, Pan-Feng,Peng, Shou-Jiao,Fang, Jian-Guo,Wu, Li-Zhu,Liu, Qiang
supporting information, p. 5559 - 5563 (2017/12/06)
The first visible-light driven aerobic oxidation for the direct selenation of (hetero)arenes has been developed at room temperature, providing an eco-friendly, atom-economical protocol to prepare unsymmetrical selenides from easily accessible diselenides.
A solvent- and metal-free synthesis of 3-chacogenyl-indoles employing DMSO/I2 as an eco-friendly catalytic oxidation system
Azeredo, Juliano B.,Godoi, Marcelo,Martins, Guilherme M.,Silveira, Claudio C.,Braga, Antonio L.
, p. 4125 - 4130 (2014/05/20)
Herein, we describe a solvent- and metal-free method for the synthesis of 3-chalcogenyl-indoles from indoles and diorganyl dichalcogenides using an equivalent amount of DMSO as an oxidant, under catalysis by molecular iodine. This mild and eco-friendly ap
