31493-78-4Relevant academic research and scientific papers
K2S2O8-mediated radical cyclisation of 2-alkynylthioanisoles or -selenoanisoles: a green and regioselective route to 3-nitrobenzothiophenes and benzoselenophenes
Gong, Ya-Ling,Lu, Shi-Chao,Wu, Botao,Xu, Shu,Zhang, Shi-Peng
, p. 19083 - 19087 (2020/06/08)
An acid, transition-metal, and chromatography-free radical nitration/cyclisation of 2-alkynylthioanisoles or -selenoanisoles has been developed. This is the first example of the use of highly unstable 2-nitrovinyl radicals for C-S bond formation. This facile route efficiently produces 3-nitrobenzothiophenes and benzoselenophenes, which are difficult to accessviaclassical methods. Density functional theory (DFT) calculations were carried out to probe the reaction mechanism. The resulting products were tested for theirin vitroanti-tuberculosis activity, and compounds2dand2lshowed significant activities against sensitive and drug-resistant strains.
HETERO-CYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME
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Paragraph 0192-0193; 0200-0201, (2016/10/08)
In the present invention, provided are: a heterocyclic compound which can significantly extend lifespan and improve efficiency, electrochemical stability, and thermal stability of the organic light-emitting device; and an organic light-emitting device containing the heterocyclic compound in an organic compound layer. The heterocyclic compound is represented by chemical formula 1.COPYRIGHT KIPO 2016
