sˈɪmɪlɚli ɪɾ ɪz pɹɪpˈɛɹd baɪ ðə mˈænɪʃ ɹɪˈækʃən ɪnvˈɑːlvɪŋ dˌaɪəθɪlɐmˈoʊniəm klˈoːɹaɪd ænd ˈæsɪtˌoʊn, wˌɪtʃ pɹədˈuːsᵻz ðə mˈænɪʃ ɐdˈʌkt:
Similarly it is prepared by the Mannich reaction involving diethylammonium chloride and acetone, which produces the Mannich adduct: