Palladium/imidazolium salt catalyzed coupling of aryl halides with hypervalent organostannates
GA Grasa, SP Nolan
Index: Grasa, Gabriela A.; Nolan, Steven P. Organic Letters, 2001 , vol. 3, # 1 p. 119 - 120
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Citation Number: 167
Abstract
A Pd (OAc) 2/imidazolium chloride system has been used to mediate the catalytic cross- coupling of aryl halides with organostannanes. The imidazolium salt IPr⊙ HCl (IPr= 1, 3-bis (2, 6-diisopropylphenyl) imidazol-2-ylidene) in combination with TBAF (n Bu4NF) was found to be most effective for the cross-coupling of aryl bromides and electron-deficient aryl chlorides with aryl and vinyl stannanes.
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