An　efficient　protocol　for　the　electrochemical　synthesis　of　thiazole　derivatives　has　been　developed.　Initially,　cyclic　voltammetry　(CV)　measure　and　preparative　electrolysis　were　performed　to　examine　that　halide　ions　and　tetrachlorohydroquinone　(TCHQ)　are　able　to　serve　as　redox　catalysts　for　the　transformation　of　TCHQ　to　tetrachloroquinone　(TCQ)　and　2,5-dihydrothiazoles　to　thiazoles,　respectively.　Next,　a　combination　of　bromide　ion　and　TCHQ　was　employed　successfully　for　the　electrochemical　synthesis　of　several　representative　thiazole　derivatives　in　moderate　to　good　yields.　Finally,　a　possible　reaction　mechanismis　proposed.　The　work　may　provide　a　practical　protocol　for　the　electrochemical　synthesis　of　TCQ　and　thiazoles.　(C)　2020　Elsevier　B.V.　All　rights　reserved.