A general method for the preparation of benzylic α,α-difluorophosphonic acids; non-hydrolyzable mimemtics of phosphotyrosine
作者:Mark S. Smyth、Harry Ford、Terrence R. Burke
DOI:10.1016/s0040-4039(00)74672-7
日期:1992.7
Methodology is presented for the preparation of heretofore unreported benzylic α,α-difluorophosphonic acids. Oxidation of benzylic α-hydroxyphosphonates using MnO2, provided a new route for the synthesis of benzylic α-oxophosphonates, which were then fluorinated using DAST. Hydrolysis of ester protecting groups yielded α,α-difluorophosphonic acids. These represent non-hydrolyzable mimetics of arylphosphates
提出了迄今为止尚未报道的苄基α,α-二氟膦酸的制备方法。使用MnO 2氧化苄基α-羟基膦酸酯为合成苄基α-氧代膦酸酯提供了新途径,然后使用DAST对其进行氟化。酯保护基的水解产生α,α-二氟膦酸。这些代表了磷酸芳基酯的不可水解模拟物,在研究细胞利用磷酸酪氨酸的信号转导途径中可能具有重要的价值。