Gorlos-phos: addressing the stereoselectivity in palladium-catalyzed exo-mode cyclization of allenes with a nucleophilic functionality
作者:Juntao Ye、Suhua Li、Shengming Ma
DOI:10.1039/c3ob40983j
日期:——
A novel catalyst system has been indentified for addressing the long-standing issue of Z/E stereoselectivity in palladium-catalyzed exo-mode cyclization reactions of allenes bearing a nucleophilic functionality with organic halides or their equivalents. The readily accessible, sterically hindered monophosphine ligand Gorlos-Phos·HBF444 imparts a remarkable stereocontrolling ability with broad generality under Pd catalysis.
针对长期以来钯催化外式模式环化反应中存在的手性选择性问题,本文提出了一种新型催化体系。这种易于获得、空间位阻较大的单膦配体Gorlos-Phos·HBF444赋予了钯催化下显著的立体控制能力,并具有广泛的应用普适性。