申请人:The Clorox Company
公开号:US06127536A1
公开(公告)日:2000-10-03
An improved synthesis for preparing a tetraamido-macrocyclic ligand, such as 5,6-Benzo-3,8,11,13-tetraoxo-2,2,9,9-tetramethyl-12,12-diethyl-1,4,7,10 -tetraazacyclotridecane, H.sub.4, in greatly improved yield and in a commercially viable manner, comprising the steps of dissolving a quantity of a 1,2-bis(2-aminoalkanamido)benzene in a solution comprised of ethyl acetate and methylene chloride to yield a first reaction solution; dissolving a quantity of a malonyl dihalide in an ethyl acetate solution to yield a second reaction solution; adding the first reaction solution and the second reaction solution to a reaction vessel containing a third reaction solution comprised of refluxing ethyl acetate solution and an acid scavenger to form a reaction mixture; and isolating a solid product comprised of the tetraamido-macrocycle directly from the reaction mixture by filtration.
一种改进的合成方法,用于制备四酰胺大环配体,例如5,6-苯并-3,8,11,13-四氧-2,2,9,9-四甲基-12,12-二乙基-1,4,7,10-四氮杂十三环,H.sub.4,具有大大提高的产量和商业可行性,包括以下步骤:将1,2-双(2-氨基烷基酰胺)苯溶解在乙酸乙酯和氯甲烷的溶液中,得到第一反应溶液;将马隆酰二卤化物溶解在乙酸乙酯溶液中,得到第二反应溶液;将第一反应溶液和第二反应溶液加入到反应容器中,该反应容器包含回流乙酸乙酯溶液和酸清除剂的第三反应溶液,形成反应混合物;通过过滤从反应混合物中直接分离出四酰胺大环配体的固体产物。