Scope of the Suzuki-Miyaura aminoethylation reaction using organotrifluoroborates

Potassium beta-aminoethyltrifluoroborates were prepared in good yields via hydroboration of the corresponding enecarbamates using the Snieckus hydroborating reagent. A wide variety of phenethylamines containing a potentially free primary amine after appropriate deprotection have been successfully prepared in good yield using these organotrifluoroborates as partners in Suzuki-Miyaura coupling with aryl bromides, iodides, and triflates.