摘要
By employing a readily available CuCI/DDQ catalyst system,we herein report a direct C(sp^(3))-H sulfonylation of xanthene derivates with odorless sodium sulfinates.Various 9H-xanthenes,thioxanthenes,and 9,10-dihydroacridines are efficiently transformed into the desired benzylic sulfonyl products via a radical/radical cross-coupling process,proceeding with the merits of broad substrate scope,operational simplicity,good functional group compatibility,and mild reaction conditions.
基金
the National Natural Science Foundation of China(No.21971071)
the Natural Science Foundation of Guangdong Province(No.2021A1515010155)
the Fundamental Research Funds for the Central Universities(No.2020ZYGXZR075).
