SEARCH Articles Figures Tables Amino acid derivatives quaternary ammonium catalysts Carbonyl compounds quaternary ammonium catalysts Chiral Quaternary Ammonium Salts as Catalysts for the Strecker Reaction Chiral compounds quaternary ammonium catalysts Chiral quaternary ammonium catalysts Phase transfer catalysis quaternary ammonium catalysts Quaternary Ammonium compounds phase-transfer catalysts Quaternary ammonium halide catalyst Quaternary ammonium salts as phase transfer catalysts Quaternary ammonium salts catalysts Quaternary ammonium salts phase-transfer catalysts