@article{article4b3ae99d,
title   = {Nucleophilic addition of potassium organotrifluoroborates to chiral cyclic N-acyliminium ions: stereoselective synthesis of functionalized N-heterocycles},
author = {Vieira, Adriano Siqueira and Ferreira, Fernando da Paz and Fiorante, Pedro de Freitas and Guadagnin, Rafael Carlos and Stefani, Hélio Alexandre},
year = {2008},
doi = {10.1016/j.tet.2008.02.006},
journal   = {Tetrahedron}
}