作者:Rajshekhar Ghosh、Ashoka G. Samuelson
DOI:10.1039/b401179a
日期:——
An efficient protocol using copper based reagents for the coupling of aryl halides with phenols to generate diaryl ethers is described. A copper(I) complex, [Cu(CH3CN)4]ClO4, or the readily available copper(II) source, CuCO3·Cu(OH)2·H2O (in combination with potassium phosphate), can be used. Aryl halides and phenols with different steric and electronic demands have been used to assess the efficiency of the procedure. The latter source of copper gives better yields under all conditions.
文中描述了一种利用基于铜的试剂实现芳基卤与酚偶联生成二芳基醚的高效协议。可以使用铜(I)配合物,例如[Cu(CH3CN)4]ClO4,或者易于获得的铜(II)源,即铜碳酸盐·氢氧化铜·水(结合磷酸钾)。根据不同的立体和电子需求,使用不同类型的芳基卤和酚来评估该过程的效率。在所有条件下,后一种铜源能够提供更好的产率。