Well-Designed Chiral Ligands for Enantioselective Ir-Catalyzed C(sp2)-H Borylation

• 作者: Yin-Xia Wang Ping-Feng Zhang Mengchun Ye
• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2020,（12）
• 所属期刊栏目: Recent Advances
• 页码范围: 1762-1766
• 页数: 5页
• 语种: 英文
• DOI: 10.1002/cjoc.202000288

摘要

1.Introduction Despite pioneering contributions previously reported,[1]the identification of[Ir(μ-X)(cod)]2/dtbpy(X = Cl,OMe,dtbpy =4,4'-di-terf-butylbipyridine)catalytic system still represented a milestone in transition metal-catalyzed C(sp2)-H borylation,[21 because the work not only revealed a mild and highly efficient catalyst that was prepared from air-stable iridium(l)precursors and readily available 2,2'-bipyridine,but also conformed a tris-boryl 16-electron catalytically active species by single crystal X-ray diffraction(Scheme 1).