Fluoride-promoted cross-coupling of chloro (mono-, di-, or triphenyl) germanes with aryl halides in “moist” toluene. Multiple transfer of the phenyl group from …
…, ZT Zhang, Y Liang, L Cabrera, SF Wnuk
Index: Pitteloud, Jean-Philippe; Zhang, Zun-Ting; Liang, Yong; Cabrera, Laura; Wnuk, Stanislaw F. Journal of Organic Chemistry, 2010 , vol. 75, # 23 p. 8199 - 8212
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Citation Number: 13
Abstract
The trichlorophenyl-, dichlorodiphenyl-, and chlorotriphenylgermanes undergo Pd-catalyzed cross-couplings with aryl bromides and iodides in the presence of tetrabutylammonium fluoride in toluene with addition of the measured amount of water. One chloride ligand on the Ge center allows efficient activation by fluoride to promote transfer of one, two, or three phenyl groups from the organogermanes. The corresponding chlorophenylstannanes ...
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