New Building Blocks Based on Truxene Cores: Synthesis of Functionalized <i>syn</i>
-Tri- and -Hexasubstituted Derivatives
作者:Esther González-Cantalapiedra、Marta Ruiz、Berta Gómez-Lor、Beatriz Alonso、Domingo García-Cuadrado、Diego J. Cárdenas、Antonio M. Echavarren
DOI:10.1002/ejoc.200500260
日期:2005.10
Hexasubstituted truxenes are obtained in one step by alkylation of the potassium anion of truxene. Subsequent derivatization provides truxenederivatives with six carboxy, amino, or hydroxy groups at their peripheries. Alkylation of syn-5,10,15-tribenzyl derivatives with a different benzyl bromide derivative affords mixtures of anti- and syn-hexasubstituted truxenes. Truxenes with phenols or benzoquinone