Lewis acid promoted Mannich type reactions of α,α-dichloro aldimines with potassium organotrifluoroborates

Article abstract of DOI:10.1016/j.tet.2007.06.003

Potassium phenylethynyltrifluoroborate and potassium styryltrifluoroborates react with α,α-dichlorinated aldimines in the presence of BF₃·OEt₂ as a Lewis acid to give a new stable class of functionalized propargylamines and allylamin