Saowanee ToonchueLadawan SumunneeKhamphee PhomphraiSirilata YotphanVidyasirimedhi Institute of Science and TechnologyMahidol University2019-08-232019-08-232018-06-21Organic Chemistry Frontiers. Vol.5, No.12 (2018), 1928-193220524129205241102-s2.0-85048413501https://repository.li.mahidol.ac.th/handle/20.500.14594/45489© the Partner Organisations 2018. A highly efficient transition metal-free oxidative chemo- and regioselective C-C bond coupling of pyrazolones and quinoxalinones mediated by K2S2O8 is described. This reaction can be conveniently carried out under mild conditions and gives various hydroxy-pyrazolyl quinoxalinone products in moderate to excellent yields in a short reaction time.Mahidol UniversityChemistryArticleSCOPUS10.1039/c8qo00328a