<i>O</i>,<i>O</i>′-Diester Methylenediphosphonotetrathioate: Synthesis, Characterization, and Potential Applications
作者:Aviran Amir、Alon H. Sayer、Rostislav Zagalsky、Linda J. W. Shimon、Bilha Fischer
DOI:10.1021/jo301786m
日期:2013.1.18
in the presence of DBU. Reaction mechanisms are proposed, and all products were characterized by 31P, 13C, and 1H NMR. An X-ray crystal structure was obtained for intermediate 2. The potential of the novel scaffold for selective coordination of metal-ions was examined by coordination of Hg(II) and Pb(II) by 1f, as determined by FT-IR, and chelation of Zn(II), but not Ca(II), by 1b, as determined by 31P/1H
据报道,将亚甲基双(二氯化膦)新转化为四硫代双膦酸酯衍生物。亚甲基双(二氯化膦)与1,2-乙二硫醇在溴仿中在AlCl 3存在下反应,生成亚甲基双(1,3,2-二硫代膦烷-2-硫化物),生成O,O '在DBU存在下与苯酚和烷基醇反应时,生成-二酯-亚甲基二膦酰基四硫代酸酯类似物1a - k。提出了反应机理,并通过31 P,13 C和1 H NMR对所有产物进行了表征。获得中间体2的X射线晶体结构。通过FT-IR测定1f的Hg(II)和Pb(II)的配位,以及Zn(II)而不是Ca(II)的螯合,检查了新型支架对金属离子选择性配位的潜力。),以31b / 1 H NMR测得1b。1g –Ni(II)混合物的紫外可见测量显示出2:1的配体:金属络合物。这些衍生物是潜在的抗氧化剂,并且通过ESR测量定量了它们在Fenton反应中抑制·OH形成的能力。类似物1g被证明是最有效的抗氧化剂(IC 50