Improved Straightforward Chemical Synthesis of Dihydroxyacetone Phosphate through Enzymatic Desymmetrization of 2,2-Dimethoxypropane-1,3-diol
作者:Franck Charmantray、Lahssen El Blidi、Thierry Gefflaut、Laurence Hecquet、Jean Bolte、Marielle Lemaire
DOI:10.1021/jo048697k
日期:2004.12.1
Dihydroxyacetone phosphate (DHAP) was synthesized in high purity and yield in four steps starting from dihydroxyacetone dimer (DHA) (47% overall yield). DHA was converted into 2,2-dimethoxypropane-1,3-diol, which was desymmetrized by acetylation with lipase AK. The alcohol function was phosphorylated to give dibenzyl phosphate ester 4. From 4, two routes were investigated for large-scale synthesis
从二羟基丙酮二聚体(DHA)开始,以四步合成高纯度的二羟基丙酮磷酸酯(DHAP)(总产率为47%)。DHA转化为2,2-二甲氧基丙烷-1,3-二醇,通过脂肪酶AK乙酰化将其脱对称。醇官能团被磷酸化,得到磷酸二苄基酯4。从4开始,研究了大规模合成DHAP的两条路线。首先,在磷酸保护基的氢解之前进行乙酸酯水解。缩醛水解最终由磷酸基团本身催化。其次,在氢解后一步进行乙酸和乙缩醛水解。