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,用于制备四胺基-大环配体,例如5,6-苯并-3,8,11,13-四氧基-2,2,9,9-四甲基-12,12-二乙基-1,4,7,10-四氮杂环十三烷,H.sub.4,其产率大幅提高,并以商业化的方式进行,包括以下步骤:将一定量的1,2-双(2-氨基烷酰胺基)苯溶解在乙酸乙酯和氯代甲烷组成的溶液中,形成第一反应溶液;将一定量的马仑酰二卤代物溶解在乙酸乙酯溶液中,形成第二反应溶液;将第一反应溶液和第二反应溶液加入到一个含有回流乙酸乙酯溶液和酸中和剂的第三反应溶液的反应容器中,形成反应混合物;通过过滤从反应混合物中直接分离出由四胺基-大环化合物组成的固体产物。