Catalyst-Free One-Pot Reductive Alkylation of Primary and Secondary Amines and N,N-Dimethylation of Amino Acids Using Sodium Borohydride in 2,2,2-Trifluoroethanol - Tajbakhsh, Mahmood; Hosseinzadeh, Rahman; Alinezhad, Heshmatollah; Ghahari, Somayeh; Heydari, Akbar; Khaksar, Samad (Synthesis, 2011)