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
申请人:Evonik Degussa GmbH
公开号:EP1303525B1
公开(公告)日:2010-09-08
Superacid-Promoted Hydroxyalkylation of 1,2-Indandiones
作者:Adam F. Tracy、Matthew P. Abbott、Douglas A. Klumpp
DOI:10.1080/00397911.2012.693239
日期:2013.8.18
Abstract 1,2-Indandione reacts efficiently with arenes to give 2,2-diaryl-1-indanones by the hydroxyalkylation reaction. The Brønsted superacid CF3SO3H (triflic acid) is an effective catalyst for these condensation reactions. The requisite 1,2-indandiones were prepared from the 1-indanones. GRAPHICAL ABSTRACT