Palladium‐catalyzed Suzuki reaction using 1,3‐dialkylbenzimidazol‐2‐ylidene ligands in aqueous media
Makaleler > Tam Makale · 2004
Yazarlar: İsmail Özdemir, Yetkin Gök, Nevin Gürbüz, Engin Çetinkaya, Bekir Çetinkaya
Heteroatom Chemistry, Uluslararası, 2004, cilt 15, ss 419-423
DOI: 10.1002/hc.20034
Özet
Abstract From readily available starting compounds, six functionalized 1,3‐dialkylbenzimidazolium salts (2a–c and 4a–c) have been prepared and characterized by conventional spectroscopic methods and elemental analyses. A highly effective, easy to handle, and environmentally benign process for palladium‐mediated Suzuki cross‐coupling was developed. The in situ prepared three‐component systems Pd(OAc)2/1,3‐dialkylbenzimidazolium chlorides and Cs2CO3 catalyze quantitatively the Suzuki cross‐coupling of deactivated aryl chlorides. © 2004 Wiley Periodicals, Inc. Heteroatom Chem 15:419–423, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20034