Pd-EnCat<sup>TM</sup>TPP30 as a Catalyst for the Generation of Highly Functionalized Aryl- and Alkenyl-Substituted Acetylenes via Microwave-Assisted Sonogashira Type Reactions
作者:Jörg Sedelmeier、Steven V. Ley、Heiko Lange、Ian R. Baxendale
DOI:10.1002/ejoc.200900344
日期:2009.9
copper- and DMF-free conditions and does not require an inert atmosphere. Furthermore, the encapsulated catalyst can be recovered and recycled by a simple filtration of the reaction mixture. It can be reused in further reactions with only minor decrease in activity. Additionally, we were able to produce a variety of enyne derivatives under modified conditions employing the same Pd-EnCatTM source. (© Wiley-VCH
我们报告了使用 Pd-EnCatTM TPP30 的芳基碘化物和溴化物与末端炔烃的快速微波辅助 Sonogashira 交叉偶联。在 100–120 °C 下,富电子和缺电子芳基卤化物在 MeCN 中与多种末端炔烃反应平稳。以良好至极好的收率和高纯度获得偶联产物。该反应可以在不含铜和 DMF 的条件下进行,不需要惰性气氛。此外,包封的催化剂可以通过反应混合物的简单过滤来回收和再循环。它可以重新用于进一步的反应,而活性只会略有下降。此外,我们能够在使用相同 Pd-EnCatTM 源的修改条件下生产各种烯炔衍生物。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim,