Highly Regioselective Difluoroalkylarylation of Butadiene through a Nickel-Catalyzed Tandem Radical Process
作者:Shucheng Ma、Fangjie Li、Guisheng Zhang、Lei Shi、Xiaoming Wang
DOI:10.1021/acscatal.1c04237
日期:2021.12.17
A nickel-catalyzed reaction of 1,3-butadiene with easily accessible difluoroalkyl bromides and arylboronic acids has been realized, affording the corresponding 1,4-difluoroalkylarylation products in good yields with high regioselectivities. The procedure can also be successfully extended to nonfluorinated alkyl bromides. A radical clock experiment suggests that a key alkyl radical is involved in the
已经实现了 1,3-丁二烯与易于获得的二氟烷基溴和芳基硼酸的镍催化反应,以高产率和高区域选择性提供相应的 1,4-二氟烷基芳基化产物。该程序也可以成功地扩展到非氟化烷基溴。自由基时钟实验表明,催化过程中涉及一个关键的烷基自由基。操作简单、官能团兼容性好和效率高,这使得这种镍催化的三组分反应非常有希望用于二氟烷基化化合物的经济高效合成。