Follow the guide: The palladium‐catalyzed phosphonation of a C(sp2)H bond occurs through the use of a pyridyl group as the directing group. α‐Hydroxyalkylphosphonate is used as the phosphonating reagent (see scheme).
An efficient room-temperature Pd-catalyzed Suzuki–Miyaura cross-coupling reaction of aryl-boronic acids with aryl chlorides is communicated here. The Pd(OAc)2/NiXantphos catalyst system enables the coupling reaction at room temperature in good to excellent yields (average yield >90%).
New, efficient electroluminescent materials based on organometallic Ir complexes
作者:Vladimir V. Grushin、Norman Herron、Daniel D. LeCloux、William J. Marshall、Viacheslav A. Petrov、Ying Wang
DOI:10.1039/b103490c
日期:——
Reaction of IrCl3 with fluorinated 2-arylpyridines in the presence of AgO2CCF3 affords fac-tris-cyclometalated arylpyridine Ir complexes exhibiting excellent processing and electroluminescent properties which can be fine-tuned via systematic control of the nature and position of the substituents on the aromatic rings.
IrCl3 与氟化 2-芳基吡啶在 AgO2CCF3 存在下的反应得到了 fac-tris-环金属化芳基吡啶 Ir 配合物,该配合物表现出优异的加工和电致发光特性,可以通过系统控制芳环上取代基的性质和位置来进行微调。
Merging C–H Vinylation with Switchable 6π-Electrocyclizations for Divergent Heterocycle Synthesis
Pyridinium-containing polyheterocycles exhibit distinctive biological properties, interesting electrochemical and opticalproperties, and thus are widely used as drugs, functional materials, and photocatalysts. Here, we describe a unified two-step strategy by merging Rh-catalyzed C-H vinylation with two switchable electrocyclizations, including aza-6π- and all-carbon 6π-electrocyclizations, for rapid
Electroluminescent iridium compounds with fluorinated phenylpyridines, phenylpyrimidines, and phenylquinolines and devices made with such compounds
申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:EP1424382A2
公开(公告)日:2004-06-02
The present invention is generally directed to electroluminescent Ir(III) compounds, the substituted 2-phenylpyridines, phenylpyrimidines and phenylquinolines that are used to make the Ir(III) compounds, and devices that are made with the Ir(III) compounds.