Base-free oxidative homocoupling of arylboronic esters

✍ Scribed by Hiroto Yoshida; Yasuhito Yamaryo; Joji Ohshita; Atsutaka Kunai

• Book ID: 104252976
• Publisher: Elsevier Science
• Year: 2003
• Tongue: French
• Weight: 187 KB
• Volume: 44
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(03)00023-6

✦ Synopsis

Base-free oxidative homocoupling reaction of arylboronic esters has been found to proceed using a catalytic amount of a palladium-1,3-bis(diphenylphosphino)propane (DPPP) complex under an oxygen atmosphere, affording a variety of biaryls in modest to excellent yields. Even arylboronic esters bearing a base-sensitive functional group are applicable to the reaction.