Copper-catalyzed synthesis of CN-containing chroman-4-ones via intramolecular radical cascade acyl-cyanation reaction
作者:Liang Wang、Min Jiang、Ming-qi Shi
DOI:10.1016/j.tetlet.2021.153061
日期:2021.5
A copper-catalyzed intramolecular radical cascade acyl-cyanation to synthesize cyano-containing chroman-4-ones has been developed. A series of CN-substituted chroman-4-one derivatives can be prepared with moderate to good yields using green cyano source under mild conditions. Control experiments indicated this reaction involved an intramolecular acyl radical addition/cyanation process. Moreover, this
已经开发了铜催化的分子内自由基级联酰基氰化以合成含氰基的chroman-4-ones。使用绿色氰基源,在温和的条件下,可以中等到良好的产率制备一系列CN取代的chroman-4-one衍生物。对照实验表明该反应涉及分子内酰基自由基加成/氰化过程。此外,该协议具有步长和原子经济性,将氰基引入到chroman-4-one中引起了极大的兴趣和重要性。