Free Radical Reaction of Dialkyl Phosphites and Organic Dichalcogenides: A New Facile and Convenient Preparation of Arylselenophosphates
作者:Qing Xu、Chun-Gen Liang、Xian Huang
DOI:10.1081/scc-120022165
日期:2003.1.8
Abstract Azobisisobutyronitrile-initiated freeradicalreaction of dialkylphosphites with diaryl diselenides afforded arylselenophosphates in high yields. Arylthiophosphates and aryltellurophosphates can also be synthesized by similar reaction of diaryl disulfides and diaryl ditellurides with dialkylphosphites.
A greener protocol for the synthesis of phosphorochalcogenoates: Antioxidant and free radical scavenging activities
作者:Daniela H. Mailahn、Lucas E.B. Iarocz、Patrick C. Nobre、Gelson Perin、Airton Sinott、Ana Paula Pesarico、Paloma T. Birmann、Lucielli Savegnago、Márcio S. Silva
DOI:10.1016/j.ejmech.2020.113052
日期:2021.3
which this stability study was also important to select some products for pharmacological screening. The phosphorochalcogenoates were screened in vitro and ex vivo tests for the antioxidant potential and free radical scavenging activity, as well as to investigation toxicity in mice through of the plasma levels of markers of renal and hepatic damage. The pharmacological screening of phosphorochalcogenoates
在这一贡献中,已开发出一种无金属和碱的方案,用于通过在50°C下使用DMSO作为溶剂来合成磷碳氢酸盐(Se和Te)。由二有机基二卤代膦酸酯和H-膦酸酯制备了多种磷代碳氢酸酯,导致了Chal-P(O)键的形成,反应速度快,收率好至极佳。通过1D和2D NMR,IR,CGMS和HRMS分析获得了产品的完整结构说明,并进行了磷藻酸酯的稳定性评估以有效地描述这种简单可行的方法。典型77硒 1个H}(δ硒= 866.0 ppm)设为125碲 1个H}(δTE = 422.0 PPM)和31 p 1个H}(δ P = -1.0,-13.0 -15.0和PPM)NMR化学位移均必须确认的副产物,其中该稳定性研究也很重要选择一些产品的药理学筛选。在体外和离体中筛选了磷酸胆碱酯进行抗氧化剂潜力和自由基清除活性测试,并通过血浆肾脏和肝损伤标志物的水平调查小鼠的毒性。药代磷酸酯的药理学筛选表明,该化合物