Selective Syntheses of Partially Etherified Derivatives of Tetrakis(2-hydroxyphenyl)ethene. An Alternative to the Calix[4]arene Ligand System
作者:Megumi Fujita、Guizhong Qi、Udo H. Verkerk、Trevor L. Dzwiniel、Robert McDonald、Jeffrey M. Stryker
DOI:10.1021/ol0491639
日期:2004.8.1
2'-benzophenone derivative and the latter by selective partial dealkylation of tetrakis(2-methoxyphenyl)ethene. Selective single demethylation has also been demonstrated in the 5-tert-butyl series. Thus, divalent and monovalent derivatives of the preorganized tetrakis(2-hydroxyphenyl)ethene ligand system are now available for use in coordination chemistry, analogous to corresponding calix[4]arene systems. [structure:
已经开发了(E)-和(Z)-1,2-双(2'-羟基苯基)-双(2'-甲氧基苯基)乙烯的立体选择性合成,前者是通过正交保护的2,2'-的会聚偶联而形成的。二苯甲酮衍生物和后者通过四(2-甲氧基苯基)乙烯的选择性部分脱烷基而形成。在5-叔丁基系列中也已经证明了选择性单脱甲基。因此,类似于相应的杯[4]芳烃体系,现在可以使用预组织的四(2-羟苯基)乙烯配体体系的二价和一价衍生物用于配位化学。[结构:见文字]