Process for producing optically active 3-halogenocarboxylic acid esters and 3-azide-carboxylic acid esters
申请人:Takasago International Corporation
公开号:EP1344763A1
公开(公告)日:2003-09-17
A process for producing an optically active 3-azide-carboxylic acid ester by reacting an optically active 3-hydroxycarboxylic acid ester and a thionyl halide in the presence of a basic substance in an organic solvent to produce an optically active 3-halogenocarboxylic acid ester which is then reacted with an azide salt represented by the formula: MN3 (wherein M is an alkaline metal) in water or a mixture of water and a water soluble organic solvent.
一种生产光学活性 3-叠氮羧酸酯的工艺,在有机溶剂中,在碱性物质存在下,使光学活性 3-羟基羧酸酯和硫酰基卤反应,生成光学活性 3-卤代羧酸酯,然后使其与式 MN3(其中 M 为碱金属)代表的叠氮盐反应:MN3(其中 M 为碱金属)在水或水与水溶性有机溶剂的混合物中反应。