Mild Palladium-Catalyzed Selective Monoarylation of Nitriles
作者:Lingyun Wu、John F. Hartwig
DOI:10.1021/ja053027x
日期:2005.11.1
arylation of nitriles under less basic conditions than previously reported have been developed. The selective monoarylation of acetonitrile and primary nitriles has been achieved using alpha-silyl nitriles in the presence of ZnF2. This procedure is compatible with a variety of functional groups, including cyano, keto, nitro, and ester groups, on the aryl bromide. The arylation of secondary nitriles occurred
1,4-Dicarbofunctionalization of 4-Fluoroaryl Grignard and Lithium Reagents with Disubstituted Malononitriles
作者:Christian A. Malapit、Irungu K. Luvaga、Jonathan T. Reeves、Ivan Volchkov、Carl A. Busacca、Amy R. Howell、Chris H. Senanayake
DOI:10.1021/acs.joc.7b00567
日期:2017.5.5
efficient one-pot 1,4-dicarbofunctionalization of 4-fluoroaryl Grignard or lithium reagents with 2,2-disubstituted malononitriles is described. The reaction proceeds by sequential transnitrilation and SNAr reactions. Commercial Grignard solutions, Grignardreagents prepared in situ by halogen/magnesium exchange with i-PrMgCl, or aryllithium reagents prepared in situ by bromine/lithium exchange with n-BuLi