Pd(OAc)2-catalyzed fluoride-free cross-coupling reactions of arylsiloxanes with aryl bromides in aqueous medium.
Mild conditions have been developed to achieve the Pd(OAc)2-catalyzed fluoride-free cross-coupling between the aryl bromides and arylsiloxanes in good to high yields in aqueous medium. The success of the reactions requires the presence of poly(ethylene glycol) (PEG) and 3 equiv of sodium hydroxide. The product was easily separated with ethyl ether extraction, and the catalytic system can be reused eight times with high efficiency.
Shi
Shengyin
S
Department of Chemistry, Zhejiang University, Hangzhou 310027, People's Republic of China.
Zhang
Yuhong
Y
D001965:Bromides / Q000737:chemistry*; D002384:Catalysis; D005459:Fluorides / Q000737:chemistry*; D012833:Siloxanes / Q000737:chemistry*; D014867:Water / Q000737:chemistry
D001965:Bromides; D012833:Siloxanes; D014867:Water; D005459:Fluorides