The present disclosure relates to a method for preparing tolimidone on large scale with maintaining high purity and uniform particle size distribution, and more specifically, a method suitable for preparing tolimidone on industrially large scale by using tetrabutyl ammonium bromide catalyst and recrystallization in ethanol, which can prepare highly pure tolimidone in a time shorter than prior arts while maintaining water content and particle size distribution constantly.
本公开涉及一种在大规模上制备托利米酮的方法,同时保持高纯度和均匀的颗粒大小分布,更具体地说,是一种适用于在工业大规模上制备托利米酮的方法,通过使用
四丁基溴化铵催化剂和在
乙醇中再结晶,可以在比之前的技术更短的时间内制备高纯度的托利米酮,同时保持
水含量和颗粒大小分布恒定。