As such, they have to be made by reacting alkylmercury compounds with sodium or potassium metal in inert hydrocarbon solvents.
æz sˈʌtʃ, ðeɪ hæv təbi mˌeɪd baɪ ɹɪˈæktɪŋ ˈælkɪlmˌɜːkjʊɹi kˈɑːmpaʊndz wɪð sˈoʊdiəm ɔːɹ pətˈæsiəm mˈɛɾəl ɪn ɪnˈɜːt hˈaɪdɹəkˌɑːɹbən sˈɑːlvənts.