Solid supported palladium(0) nano/microparticle: a ligand-free efficient recyclable heterogeneous catalyst for mono- and β,β-double-Heck reaction
作者:Dharminder Sharma、Sandeep Kumar、Arun K. Shil、Nitul Ranjan Guha、Bandna、Pralay Das
DOI:10.1016/j.tetlet.2012.10.062
日期:2012.12
β-double-Heck reactions. Different β-unsubstituted and substituted alkenes including acrylate, methacrylate, crotonate, styrene, acrylonitrile, and acrylamide were investigated successfully for mono- and β,β-double-Heck reactions with aryl iodide under milder reaction condition. One-pot β,β-double-Heck reaction of aryl iodides with α,β-unsaturated ester, amide, nitrile, and styrene derivatives were also performed
发现固体负载的钯纳米/微粒是进行单-和β,β-双-Heck反应的活性催化剂。在温和的反应条件下,成功地研究了不同的β-未取代和取代的烯烃,包括丙烯酸酯,甲基丙烯酸酯,巴豆酸酯,苯乙烯,丙烯腈和丙烯酰胺,用于与碘化芳基的单和β,β-双-Heck反应。芳基碘化物与α,β-不饱和酯,酰胺,腈和苯乙烯衍生物的一锅β,β-双-Heck反应也可以在标准反应条件下进行。宽泛的官能团耐受性,容易的催化剂回收以及高达十二倍的可回收性而又不显着降低催化活性,这对本发明的方法尤为重要。