PEG-400 promoted Pd (OAc) 2/DABCO-catalyzed cross-coupling reactions in aqueous media
JH Li, XC Hu, Y Liang, YX Xie
Index: Li, Jin-Heng; Hu, Xi-Chao; Liang, Yun; Xie, Ye-Xiang Tetrahedron, 2006 , vol. 62, # 1 p. 31 - 38
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Citation Number: 125
Abstract
PEG-400 [poly (ethylene glycol-400)] was found to improve the Pd (OAc) 2/DABCO- catalyzed aqueous Suzuki–Miyaura and Stille cross-coupling reactions. In the presence of Pd (OAc) 2, DABCO, and PEG-400, a variety of aryl halides were coupled with arylboronic acids or organotin compounds efficiently to afford the corresponding cross-coupled products in moderate to excellent yields. The turnover numbers was up to 900,000 for the Suzuki– ...
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