@article{articlecb2f4787,
title   = {Ytterbium(III)-catalyzed addition reaction of alkynyltrifluoroborate salts to α-imino esters: efficient synthesis of β-unsaturated α-amino esters},
author = {Stefani, Hélio Alexandre and Manarin, Flávia and Khan, Amna N and Vasconcelos, Stanley Nunes Siqueira},
year = {2014},
doi = {10.1002/ejoc.201301421},
journal   = {European Journal of Organic Chemistry}
}