Microwave MichaelisâBecker synthesis of diethyl phosphonates, tetraethyl diphosphonates, and their total or partial dealkylation
作者:Dalila Meziane、Julie Hardouin、Abdelhamid Elias、Erwann Guénin、Marc Lecouvey
DOI:10.1002/hc.20561
日期:——
Diethyl phosphonates and tetraethyl alkyldiphosphonates were efficiently and rapidly prepared via the Michaelis–Becker reaction, under microwave irradiation. These compounds were then hydrolyzed to phosphonic and diphosphonic acids or selectively monodealkylated to give monoesters of phosphonic acids and symmetrical diethyl esters of diphosphonic acids. These reactions were also achieved rapidly in
在微波辐射下,通过 Michaelis-Becker 反应高效快速地制备了膦酸二乙酯和烷基二膦酸四乙酯。然后将这些化合物水解成膦酸和二膦酸或选择性单脱烷基化得到膦酸单酯和对称二膦酸二乙酯。使用微波方法,这些反应也以令人满意的产率快速实现。该方法成功地应用于聚合物树脂的官能化。© 2009 Wiley Periodicals, Inc. 杂原子化学 20:369–377, 2009; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.20561