Ruthenium-catalyzed oxidation of alkynes to 1,2-diketones under room temperature and one-pot synthesis of quinoxalines

Yuan Xu, Xiaobing Wan

Tetrahedron Letters

Volume 54, Issue 7, 13 February 2013, Pages 642–645

http://dx.doi.org/10.1016/j.tetlet.2012.11.142