A new synthetic method characterized by low environmental impact for the synthesis of a wide range of gem-bisphosphonates bearing aryl substituents in β position as potential anti-resorption species to contrast osteoporosis is reported. The pivotal role played by water ensures higher yields compared to the organic medium in the rhodium-catalyzed 1,4-conjugate addition of arylboronic acids to vinylidenebisphosphonate tetraethylester, as well as easy product isolation.
本研究报告介绍了一种新的合成方法,该方法的特点是对环境影响小,可合成多种在 β 位带有芳基取代基的宝石
双膦酸盐,作为潜在的抗骨质疏松药物。与有机介质相比,
水在
铑催化的芳基
硼酸与亚
乙烯基二膦酸四
乙酯的 1,4-共轭加成反应中发挥了关键作用,确保了更高的产率,并使产物易于分离。