Login / Signup

Diversification of Aryl Sulfonyl Compounds through Ligand-Controlled meta- and para-C-H Borylation.

Yajun WangWenju ChangShengmeng QinHan AngJiawei MaShuo LuYong Liang
Published in: Angewandte Chemie (International ed. in English) (2022)
Aryl sulfones and aryl sulfonamides are of great importance in organic synthesis and medicinal chemistry. Although ortho-C-H functionalization of aryl sulfonyl compounds has been extensively explored, the functionalization of remote meta- and para-C-H bonds is very rare. Herein, we report a tunable meta- and para-selective C-H borylation of aryl sulfonyl compounds enabled by computationally designed ligands and iridium catalyst. This method is capable of accommodating a broad range of substrates under mild reaction conditions. Gram-scale preparation can be achieved with iridium catalyst loading as low as 0.1 mol%. As the introduced boronate group can be easily converted into many other groups, our method provides a general solution to installing functional groups at either meta- or para-position of aryl sulfones and aryl sulfonamides with good to excellent selectivity.
Keyphrases
  • ionic liquid
  • room temperature
  • highly efficient
  • reduced graphene oxide
  • gold nanoparticles
  • high resolution
  • drug discovery