Oxidation of alkynes using PdCl2/CuCl2 in PEG as a recyclable catalytic system: one-pot synthesis of quinoxalines
作者:S. Chandrasekhar、N. Kesava Reddy、V. Praveen Kumar
DOI:10.1016/j.tetlet.2010.05.006
日期:2010.7
Alkynes were oxidized efficiently using the catalytic amount of PdCl2 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
在水存在下,使用PEG-400中的催化量的PdCl 2和CuCl 2催化有效地氧化炔烃,从而提供了极佳的相应1,2-二酮收率。多种炔烃是在所述条件下用于氧化的非常合适的底物。此外,优化的条件已成功用于一锅合成2,3-二取代的喹喔啉衍生物。