How is Ammonium 2-hydroxypropanoate (CAS: 515-98-0) typically synthesized?

Ammonium 2-hydroxypropanoate (CAS: 515-98-0) is commonly synthesized by reacting ammonium hydroxide with propanoic acid in the presence of a catalytic amount of an acid or base. The reaction is typically carried out at room temperature, and the yield is around 90%. The process involves the formation of an ammonium salt of propanoic acid, followed by the reduction of the carboxylic acid to the hydroxyl group.