Palladium-catalyzed C–S bond formation by using N -amido imidazolium salts as ligands
Cheminform(2013)
摘要
N-Amido imidazolium salt was employed as a ligand in the palladium-catalyzed cross-coupling reaction of aryl halides and thiols, and showed good activity in the formation of thioether. The best combination for the coupling with aryl bromides was N-amido imidazolium salt 2 and NaHMDS, and that for the coupling with aryl iodides was N-amido imidazolium salt 1 and KOtBu. The coupling reactions were conducted in the presence of Pd(OAc)2 (1mol%) in DMSO at 80°C for 12h.
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关键词
N-Amido imidazolium salt,Aryl halides,Thiol,Thioether,Palladium
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