Testing Phosphanes in the Palladium Catalysed Allylation of Secondary and Primary Amines
作者:Claire Thoumazet、Hansjörg Grützmacher、Bernard Deschamps、Louis Ricard、Pascal le Floch
DOI:10.1002/ejic.200600592
日期:2006.10
The electronic nature of the ligand plays a crucial role in the palladium-catalysed allylation of amines with allylic alcohols. The better the ligand is as a π acceptor, the more active the catalyst. Experiments with a series with mono- and bidentate ligands featuring phosphanes and phospholes applied in the catalytic allylation of aniline clearly demonstrate this. Bolstered by DFT calculations, we
配体的电子性质在钯催化的胺与烯丙醇的烯丙基化反应中起着至关重要的作用。配体作为 π 受体越好,催化剂的活性就越高。一系列具有单齿和双齿配体的实验清楚地证明了这一点。在 DFT 计算的支持下,我们为该过程设计了一种新的高效催化剂,该催化剂带有强 π 受体 1,2,5-三苯基磷作为配体。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)