申请人:Pohang University of Science and Technology Foundation
公开号:US06365734B1
公开(公告)日:2002-04-02
Cucurbituril derivatives, their preparation methods and uses. The cucurbituril derivatives have the formula (1)
where X is O, S or NH; R1 and R2 are independently selected from the group consisting of hydrogen, alkyl groups of 1 to 30 carbon atoms, alkenyl groups of 1 to 30 carbon atoms, alkynyl groups of 1 to 30 carbon atoms, alkylthio groups of 1 to 30 carbon atoms, alkylcarboxyl groups of 1 to 30 carbon atoms, hydroxyalkyl groups of 1 to 30 carbon atoms, alkylsilyl groups of 1 to 30 carbon atoms, alkoxy groups of 1 to 30 carbon atoms, haloalkyl groups of 1 to 30 carbon atoms, nitro group, alkylamine groups of 1 to 30 carbon atoms, amine group, aminoalkyl groups of 1 to 30 carbon atoms, unsubstituted cycloalkyl groups of 5 to 30 carbon atoms, cycloalkyl groups of 4 to 30 carbon atoms with hetero atoms, unsubstituted aryl groups of 6 to 30 carbon atoms, and aryl groups of 6 to 30 carbon atoms with hetero atoms; and n is an integer from 4 to 20, wherein the cucurbituril derivatives having the formula (1), where n=6, R1=H, R2=H and X=O, and n=5, R1=CH3, R2=H and X=O, are excluded. The cucurbituril derivatives are easily prepared as a mixture by one of the three new methods, and each cucurbituril derivative can be separated from the mixture by fractional crystallization. The cucurbituril derivatives having the formula (1) or their mixtures are very useful in removing dyes and heavy metal ions dissolved in water or waste water.
Cucurbituril衍生物,它们的制备方法和用途。Cucurbituril衍生物具有式(1),其中X为O、S或NH;R1和R2独立地选自以下群体:氢、1至30个碳原子的烷基、1至30个碳原子的烯基、1至30个碳原子的炔基、1至30个碳原子的烷硫基、1至30个碳原子的烷羧基、1至30个碳原子的羟基烷基、1至30个碳原子的烷基硅基、1至30个碳原子的烷氧基、1至30个碳原子的卤代烷基、硝基、1至30个碳原子的烷胺基、胺基、1至30个碳原子的氨基烷基、5至30个碳原子的未取代环烷基、4至30个碳原子的含杂原子的环烷基、6至30个碳原子的未取代芳基和6至30个碳原子的含杂原子的芳基;n为4至20的整数,其中具有式(1)的Cucurbituril衍生物,其中n=6,R1=H,R2=H和X=O,以及n=5,R1=CH3,R2=H和X=O,被排除。Cucurbituril衍生物可以通过三种新方法之一轻松制备为混合物,并且可以通过分级结晶从混合物中分离出每种Cucurbituril衍生物。具有式(1)的Cucurbituril衍生物或它们的混合物在去除水或废水中溶解的染料和重金属离子方面非常有用。