94872-65-8Relevant articles and documents
Synthesis of quinoxalines through iodine-catalyzed one-pot annulation of alkynes with o-phenylenediamines
Zi, Jing,Gu, Da-Wei,Zhang, Yan,Hu, Zhe-Yao,Zhang, Xing-Quan,Guo, Xun-Xiang
supporting information, p. 915 - 920 (2018/03/21)
The synthesis of N-heterocycles of quinoxalines has been developed by an efficient protocol of one-pot annulation of alkynes with o-phenylenediamines. A variety of quinoxalines were prepared in good to high yields in the presence of catalytic amount of iodine as a catalyst.
Oxidation of alkynes using PdCl2/CuCl2 in PEG as a recyclable catalytic system: One-pot synthesis of quinoxalines
Chandrasekhar,Reddy, N. Kesava,Kumar, V. Praveen
scheme or table, p. 3623 - 3625 (2010/08/13)
Alkynes were oxidized efficiently using the catalytic amount of PdCl 2 and CuCl2 in PEG-400 in the presence of water, providing excellent yields of the corresponding 1,2-diketones. A variety of alkynes were well-suited substrates for the oxidation under the described conditions. Further, the optimized conditions were successfully utilized for the one-pot synthesis of 2,3-disubstituted quinoxaline derivatives.