Regioselective
<i>ortho</i>
‐Palladation of [2.2]Paracyclophane Scaffolds: Accessing Planar and Central Chiral N,C‐Palladacycles
作者:Christoph Zippel、Teresa Bartholomeyzik、Christian Friedmann、Martin Nieger、Zahid Hassan、Stefan Bräse
DOI:10.1002/ejoc.202101066
日期:2021.9.24
A selective palladation: Planar and central chiral cyclophanyl-derived mono- and binuclear N,C-palladacycles are prepared by regioselective ortho-palladation of amine- and imine-functionalized [2.2]paracyclophanes employing stepwise Pd(OAc)2 and LiCl followed by modular treatment with PPh3, PCy3 and (Ph2PCH2)2. The regioselective ortho-palladation mono- and bimetallic product formation was analyzed
选择性钯化:平面和中心手性环芳基衍生的单核和双核 N,C-钯环是通过胺和亚胺官能化 [2.2] 对环芳的区域选择性邻位钯化反应制备的,采用逐步 Pd(OAc) 2和 LiCl,然后模块化用PPh 3、PCy 3和(Ph 2 PCH 2 ) 2 处理。通过详细的光谱技术、质谱法分析区域选择性邻位钯化单金属和双金属产物的形成,并通过单晶 X 射线分析明确证实。