Non- and deactivated chloroarenes can be coupled with a wide range of ketones to yield the corresponding arylmethyl ketones in good to excellent yields using a palladium(II) acetate/n-BuPAd2 catalyst system. Depending on the ketone, the chloroarene/ketone ratio and the base, mono or diarylation can be effected selectively.
Palladium-catalyzed direct α-arylation of α-fluoroketones: A straightforward route to α-fluoro-α-arylketones
作者:Chen Guo、Ruo-Wen Wang、Yong Guo、Feng-Ling Qing
DOI:10.1016/j.jfluchem.2011.08.004
日期:2012.1
The palladium-catalyzed direct alpha-arylation of both open-chain and cyclic alpha-fluoroketones by using P(o-tolyl)(3) or RuPhos as ligand and K3PO4 center dot 3H(2)O as mild base has been developed. This method allows a variety of quaternary alpha-aryl-alpha-fluoroketones to be easily prepared. (C) 2011 Elsevier B.V. All rights reserved.
ADAMANTYLGRUPPEN ENTHALTENDE PHOSPHANLIGANDEN, DEREN HERSTELLUNG UND IHRE VERWENDUNG IN KATALYTISCHEN REAKTIONEN