Copper(II) trans-bis-(glycinato): an efficient heterogeneous catalyst for cross coupling of phenols with aryl halides
作者:Sanny Verma、Neeraj Kumar、Suman L. Jain
DOI:10.1016/j.tetlet.2012.06.071
日期:2012.8
Copper(II) trans-bis-(glycinato) complex, easily prepared by the solid state reaction of copper(II) acetate and glycine (trans-[Cu(glyo)2·H2O]) was found to be an efficient, recyclable, and high yielding catalyst for the Ullmann type synthesis of diaryl ethers via the crosscoupling of phenols with arylhalides without using any additives at relatively low reaction temperature. The catalyst could easily