Direct Arylation of Substituted Pyridines with Arylboronic Acids Catalyzed by Iron(II) Oxalate
作者:Yibo Huang、Dan Guan、Liang Wang
DOI:10.1002/cjoc.201400528
日期:2014.12
The direct arylation of substituted pyridines with several arylboronic acids has been developed. This transformation could proceed readily at ambient temperature using inexpensive reagents: iron(II) oxalate as a catalyst, potassium persulfate as a co‐oxidant, which can afford the arylated products in mild to good yields. The mechanism is presumed to proceed through a nucleophilic radical addition to
已经开发了取代的吡啶与几种芳基硼酸的直接芳基化。使用廉价的试剂:草酸亚铁(II)作为催化剂,过硫酸钾作为助氧化剂,可以在环境温度下轻松进行这种转化,从而可以提供中等收率到良好收率的芳基化产物。推测该机理是通过原位再氧化将亲核基团加到吡啶上进行的。