期刊
JOURNAL OF ORGANOMETALLIC CHEMISTRY
卷 691, 期 12, 页码 2821-2826出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2006.02.022
关键词
rhodium catalyst; arylation; arylboron compounds; nitriles; ketones; imines
The rhodium-catalyzed addition reactions of sodium tetraphenylborate and arylboronic acids to nitriles, ketones, and imines were examined. The reaction of nitriles could be carried out efficiently in the presence of a catalyst system of [RhCl(cod)](2)-dppp and H2O to give the corresponding monoarylated products selectively. Although unactivated ketones and imines are known to be poor electrophiles for rhodium-catalyzed arylation, the phenylation of them with use of sodium tetraphenylborate proceeded smoothly in the presence of [RhCl(cod)](2) and Rh(acac)(cod) as catalysts, respectively. The addition of NH4Cl was found to be crucial to effectively conduct the reaction of ketones and imines. (c) 2006 Elsevier B.V. All rights reserved.
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