Aerobic Oxidative Coupling of o-Xylene: Discovery of 2-Fluoropyridine as a Ligand to Support Selective Pd-Catalyzed C-H Functionalization.

Aerobic Oxidative Coupling of o-Xylene: Discovery of 2-Fluoropyridine as a Ligand to Support Selective Pd-Catalyzed C-H Functionalization.
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DOI:
10.1002/adsc.201000771
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发表时间:
2010-12-17
影响因子:
5.4
通讯作者:
Stahl, Shannon S.
Stahl, Shannon S.
中科院分区:
化学2区
文献类型:
--
作者:
Izawa, Yusuke;Stahl, Shannon S.

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邻二甲苯直接氧化偶联的改进方法可以简化获得聚酰亚胺树脂中使用的重要单体的过程。人们发现,使用 2-氟吡啶作为配体可以在这种 Pd 催化的有氧氧化偶联反应中实现前所未有的化学和区域选择性水平。对 2-氟吡啶作为配体的有效性的起源已经有了初步的了解。
An improved method for direct oxidative coupling of o-xylene could provide streamlined access to an important monomer used in polyimide resins. The use of 2-fluoropyridine as a ligand has been found to enable unprecedented levels of chemo- and regioselectivity in this Pd-catalyzed aerobic oxidative coupling reaction. Preliminary insights have been obtained into the origin of the effectiveness of 2-fluoropyridine as a ligand.
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