"Axially Chiral Guanidine as Highly Active and Enantioselective Catalyst for Electrophilic Amination of Unsymmetrically Substituted 1,3-Dicarbonyl Compounds" Masahiro Terada, Megumi Nakano, and Hitoshi Ube, J. Am. Chem. Soc., 2006, 128, 16044–16045, DOI: 10.1021/ja066808m

"High Substrate/Catalyst Organocatalysis by a Chiral Brønsted Acid for an Enantioselective Aza-Ene-Type Reaction" Masahiro Terada, Kyoko Machioka, Keiichi Sorimachi, Angew. Chem., Int. Ed., 2006, 45, 2254-2257, DOI: 10.1002/anie.200503477


"Phosphorodiamidic Acid as a Novel Structural Motif of Brønsted Acid Catalysts for Direct Mannich Reaction of N-Acyl Imines with 1,3-Dicarbonyl Compounds" Masahiro Terada, Keiichi Sorimachi, Daisuke Uraguchi, Synlett, 2006, 133-136, DOI: 10.1055/s-2005-922783


"Axially Chiral Guanidine as Enantioselective Base Catalyst for 1,4-Addition Reaction of 1,3-Dicarbonyl Compounds with Conjugated Nitroalkenes" Masahiro Terada, Hitoshi Ube, Yusuke Yaguchi, J. Am. Chem. Soc., 2006, 128, 1454–1455, DOI: 10.1021/ja057848d