Greener Ullmann-Type Coupling of Aryl Halides for Preparing Biaryls Using Reusable Pd/ZrO2 Catalyst

被引：5
|
作者：
Dumbre, Deepa K. [1 ]
Wakharkar, Radhika D. [2 ]
Choudhary, Vasant R. [1 ]
机构：
[1] Natl Chem Lab, Chem Engn & Proc Dev Div, Pune 411008, Maharashtra, India
[2] Natl Chem Lab, Div Organ Chem, Pune 411008, Maharashtra, India
来源：
SYNTHETIC COMMUNICATIONS | 2011年 / 41卷 / 02期
关键词：
Aryl halides; biaryls; Pd; ZrO2; Ullmann coupling reaction; CARBON-DIOXIDE;
D O I：
10.1080/00397910903531805
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Biaryls with excellent yields can be prepared by the Ullmann-type coupling of aryl halides in the presence of potassium carbonate (as a base) and dimethylformamide (as a solvent), at 140 degrees C, using a reusable Pd (2.5wt%)/ZrO2 catalyst. The product yield of 4-iodoanisole coupling is strongly influenced by the catalyst preparation method, solvent, and base.
引用
收藏
页码：164 / 169
页数：6
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