A novel method for producing methionine without using hydrogen cyanide as a raw material has been demanded. A method for producing methionine including a step A of oxidizing 4-methylthio-2-oxo-1-butanal in the presence of an alcohol; a step B of hydrolyzing a 4-methylthio-2-oxo-butanoic acid ester obtained in the step A; and a step C of subjecting 4-methylthio-2-oxo-butanoic acid obtained in the step B to reductive amination.
一种不使用
氢氰酸作为原料生产蛋
氨酸的新方法被要求。该方法包括以下步骤:步骤A,在醇的存在下氧化4-甲
硫基-2-氧代-1-
丁醛;步骤B,
水解步骤A中得到的4-甲
硫基-2-氧代
丁酸酯;步骤C,将步骤B中得到的4-甲
硫基-2-氧代
丁酸还原胺化。