Preparation of Shape-Persistent Macrocycles with a Single Pyridine Unit by Double Cross-Coupling Reactions of Aryl Bromides and Alkynes
作者:Ryu Yamasaki、Atsushi Shigeto、Shinichi Saito
DOI:10.1021/jo2018944
日期:2011.12.16
A double Sonogashira-type coupling reaction between arylbromides and alkynes using a catalytic Pd/XPhos (2-dicyclohexylphosphino-2′,4′,6′-triisopropylbiphenyl) system was introduced as an efficient method for the synthesis of shape-persistent macrocycles (SPMs). This approach is advantageous in the synthesis of SPMs with a single pyridine unit.