申请人:Toray Industries, Inc.
公开号:EP3932900A1
公开(公告)日:2022-01-05
In a method for producing an α,β-unsaturated dicarboxylic acid ester exemplified by an α-hydromuconic acid ester from a carboxylic acid ester exemplified by a 3-hydroxyadipic acid ester or a 3-hydroxyadipic acid-3,6-lactone ester, the selectivity for the α,β-unsaturated dicarboxylic acid ester can be raised by subjecting the carboxylic acid ester to a basic condition of pH 8.5 to less than 13 in an organic solvent or a mixed solvent of an organic solvent and water.
在从以 3-羟基己二酸酯或 3-羟基己二酸-3,6-内酯为例的羧酸酯生产α,β-不饱和二羧酸酯的方法中,可通过将羧酸酯置于 pH 值为 8.5至小于13的碱性条件下,在有机溶剂或有机溶剂与水的混合溶剂中进行反应。