SEARCH Articles Figures Tables Aldol and Nitroaldol Reactions (Preparation of Chiral Quaternary Ammonium Fluorides) Chiral Quaternary Ammonium Salts as Catalysts for the Strecker Reaction Quaternary Ammonium Hydroxides Undergo Elimination Reactions Quaternary Ammonium Salt-Catalyzed Mannich Reactions Quaternary ammonium elimination reactions Reaction ammonium Reactions of Quaternary Ammonium Salts Reactions of Quaternary Ammonium Salts Hofmann Elimination Reduction quaternary ammonium borohydride reaction