Details

Autor(en) / Beteiligte

• Fan, Xin-Heng
• Yang, Lian-Ming

Titel

Room-Temperature Nickel-Catalysed Suzuki-Miyaura Reactions of Aryl Sulfonates/Halides with Arylboronic Acids

Ist Teil von

• European Journal of Organic Chemistry, 2011-03, Vol.2011 (8), p.1467-1471

Ort / Verlag

Weinheim: WILEY-VCH Verlag

Erscheinungsjahr

2011

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Room‐temperature Suzuki–Miyaura aryl–aryl cross‐coupling reactions have been achieved in high yields by using an easily accessible, air‐stable NiII–(σ‐aryl) complex as precatalyst without either the pretreatment of organometallic reagents or the presence of external reductants. The NiII complex, in conjunction with monophosphane ligands such as PCy3·HBF4 or PPh3, allowed the efficient cross‐coupling of aryl sulfonates (OTs, OMs) and/or halides (Cl, Br, I) with arylboronic acids at room temperature in toluene/water in the presence of K2CO3 as base. Room‐temperature Suzuki–Miyaura reactions of aryl sulfonates (OTs, OMs) and/or halides (Cl, Br, I) with arylboronic acids have been achieved by using aneasily accessible, air‐stable NiII–(σ‐aryl) complex as precatalyst without the pretreatment of organometallic reagents or the presence of external reductants.