[EN] PROCESS FOR THE SYNTHESIS OF NA- BETA-ALANINATE AND CALCIUM PANTOTHENATE<br/>[FR] PROCÉDÉ DE PRÉPARATION DE NA-BETA-ALANINATE
申请人:DSM IP ASSETS BV
公开号:WO2009016025A1
公开(公告)日:2009-02-05
In a process for the preparation of Na-β-alaninate from β-amino-propionitrile ready for the condensation with pantolactone to pantothenate the improvement of obtaining Na-β-alaninate as a solution in an alcohol, which improvement comprises carrying out the hydrolysis of β-amino-propionitrile in water and then making a solvent exchange from water to an alcohol, thus achieving that the final β-alaninate mixture contains side- or by-products in amounts only, which do not negatively influence the-pantothenate quality.
从β-氨基丙腈制备Na-β-丙氨酸盐的过程中,用于与泛酰乳酸酯缩合的β-氨基丙腈的改进,包括在水中进行β-氨基丙腈的水解,然后进行溶剂交换,从水中转移到醇中,从而实现最终的β-丙氨酸盐混合物只包含少量的副产物,这些副产物的含量不会对泛酰乳酸酯的质量产生负面影响。