Controllable Regioselective Construction of Both Functional α-Methylene-β- and -γ-amino Acid Derivatives Through an Organocatalyzed Tandem Allylic Alkylation and Amination . Feng Pan, Jian-Ming Chen, Tian-You Qin, Sean Xiao-An Zhang, and Wei-Wei Liao*, Eur. J. Org. Chem, 2012, 5324.