Palladium-Catalyzed Synthesis of Aryl Ketones from Boronic Acids and Carboxylic Acids Activated in situ by Pivalic Anhydride
作者:Lukas J. Gooßen、Keya Ghosh
DOI:10.1002/1099-0690(200210)2002:19<3254::aid-ejoc3254>3.0.co;2-6
日期:2002.10
A new palladium-catalyzed cross-coupling reaction between arylboronic acids and mixed anhydrides, generated in situ from carboxylic acids and pivalic anhydride, is presented. Optimization of the new catalyst and the reaction conditions led to the development of a convenient one-pot ketone synthesis directly from carboxylic and boronic acids in the presence of different (phosphane)palladium complexes
提出了一种新的钯催化的芳基硼酸和混合酸酐之间的交叉偶联反应,该反应由羧酸和新戊酸酐原位生成。新催化剂和反应条件的优化导致在 60°C 下在湿 THF 中存在不同(磷烷)钯配合物的情况下,直接从羧酸和硼酸进行方便的一锅酮合成的发展。进行了系统研究以阐明这种转化的反应机制。33 种功能化酮的合成证明了新工艺的范围和局限性。(© Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)