A　general　and　convenient　copper-mediated　trifluoromethylthiolation　of　primary　and　secondary　alkyl　halides　was　described.　Variation　of　the　solvent,　additives　and　time　allowed　optimization　of　the　reaction.　A　wide　range　of　alkyl　halides　were　explored　to　give　a　set　of　alkyl　trifluoromethyl　thioethers　in　moderate　to　excellent　yields.　A　variety　of　functional　groups,　including　ethers,　thioether,　esters,　nitriles,　amides,　and　ketal　groups,　were　well　tolerated　in　the　electrophilic　partner.　This　journal　is　©　the　Partner　Organisations　2014.