An　efficient　room　temperature　copper-catalyzed　trifluoromethylation　of　organotrifluoroborates　under　the　base　free　condition　using　an　electrophilic　trifluoromethylating　reagent　is　demonstrated.　The　corresponding　trifluoromethylarenes　were　obtained　in　good　to　excellent　yields　and　the　reaction　tolerates　a　wide　range　of　functional　groups.　(C)　2012　Elsevier　Ltd.　All　rights　reserved.