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  • A macrocyclic aromatic pyridone pentamer as a highly efficient organocatalyst for the direct arylations of unactivated arenes.

A macrocyclic aromatic pyridone pentamer as a highly efficient organocatalyst for the direct arylations of unactivated arenes.

Chemical communications (Cambridge, England) (2013-02-14)
Huaiqing Zhao, Jie Shen, Juanjuan Guo, Ruijuan Ye, Huaqiang Zeng
ABSTRACT

A macrocyclic aromatic pyridone pentamer was shown to catalyze highly efficient transition-metal-free arylations of unactivated aromatic C-H bonds with aryl iodides and bromides in the presence of potassium tert-butoxide.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Potassium tert-butoxide solution, 1.0 M in THF
Sigma-Aldrich
Potassium tert-butoxide, reagent grade, ≥98%
Sigma-Aldrich
Potassium tert-butoxide, sublimed grade, 99.99% trace metals basis