We report here, for the first time, the BOP-mediated one-pot macrocyclization that is facilitated and guided by internally placed intramolecular H-bonds to allow for the highly selective formation of five-residue cation-binding macrocycles.
Computation-guided improved one-pot synthesis of macrocyclic cation-binding aromatic pyridone pentamers
作者:Vicky Ziman Zeng、Haibin Su、Tianhu Li
DOI:10.1039/c6ob01841f
日期:——
By using polar DMF to relax the H-bonded rigid backbone and to lower the energetic penalty associated with the sterically-crowded environment, the yields for BOP-mediated one-pot synthesis of pentameric macrocycles can be improved from 10–25% as obtained in CH2Cl2 to 13–47% when 15% DMF in CH2Cl2 was used as the reaction medium.