Catalyst-Free Protocol for the Synthesis of Quinoxalines and Pyrazines in PEG.Published in:Journal of Heterocyclic Chemistry, 2013, v. 50, n. 2, p. 293, doi. 10.1002/jhet.1043By:Huang, Tie ‐ Qiang;Qu, Wen ‐ Yan;Ding, Jin ‐ Chang;Liu, Miao ‐ Chang;Wu, Hua ‐ Yue;Chen, Jiu ‐ XiPublication type:Article