92405-76-0Relevant academic research and scientific papers
Gallium(III) triflate-catalyzed synthesis of quinoxaline derivatives
Cai, Jing-Jing,Zou, Jian-Ping,Pan, Xiang-Qiang,Zhang, Wei
, p. 7386 - 7390 (2008)
Gallium(III) triflate-catalyzed reactions of phenylene-1,2-diamines and 1,2-diketones produce quinoxalines in excellent to quantitative yields. The reactions proceed with 1 mol % catalyst in ethanol at room temperature. The catalyst can be recycled for at
YbCl3-catalyzed one-pot synthesis of dihydropyrazines, piperazines, and pyrazines
Fan, Liyan,Chen, Wen,Qian, Changtao
supporting information, p. 231 - 234 (2013/02/23)
A simple and efficient synthetic approach to dihydropyrazines via YbCl 3-catalyzed reaction of α-hydroxyketones with diamines under mild conditions was developed. The corresponding 2,3-subsitituted piperazines and pyrazines were obtained through tandem conversion of dihydropyrazines with good yields.
Efficient, ecofriendly, and practical process for the synthesis of quinoxalines catalyzed by amberlyst-15 in aqueous media
Liu, Ju-Yan,Liu, Jing,Wang, Jia-Di,Jiao, De-Quan,Liu, Hai-Wang
experimental part, p. 2047 - 2056 (2010/08/13)
Amberlyst-15/H2O has been used as an efficient and environmentally friendly catalytic system for the synthesis of quinoxalines. The present methodology offers several advantages, such as excellent yields, short reaction time, and simple workup. Copyright Taylor & Francis Group, LLC.
Reaction of 2,3-Diphenylpyrazine 1-Oxides with Acetic Anhydride
Ohta, Akihiro,Inoue, Masami,Yamada, Junichi,Yamada, Yasuhiko,Kurihara, Teruo,Honda, Toshihiro
, p. 103 - 106 (2007/10/02)
Some 2,3-diphenylpyrazine 1-oxides were heated with acetic anhydride to give the corresponding 2,3-diacetoxy-2,3-dihydro-5,6-diphenylpyrazines.By X-ray diffraction analysis, the configuration of two acetoxyl groups was determined to be trans.
