Copper-catalyzed tandem process: an efficient approach to 2-substituted-1,4-benzodioxanes
作者:Yunyun Liu、Weiliang Bao
DOI:10.1039/c003691a
日期:——
An efficient method for the preparation of various 2-substituted-1,4-benzodioxanes by CuBr-catalyzed tandem reactions of 2-((o-iodophenoxy)methyl)oxiranes with phenols has been developed. The reaction involves the ring-opening process of 2-((2-iodophenoxy)methyl)oxirane followed by an intramolecular C–O cross coupling cyclization.
一种高效的方法已被开发,用于通过CuBr催化的串联反应,将2-((o-碘苯氧基)methyl)环氧烷与酚类化合物制备多种2-取代-1,4-苯并二恶烷。该反应涉及2-((2-碘苯氧基)methyl)环氧烷的开环过程,随后进行分子内C–O交叉耦合环化反应。