A novel furo[3,2-c]pyridine-based iridium complex for high-performance organic light-emitting diodes with over 30% external quantum efficiency
作者:Zhimin Yan、Yanping Wang、Jiaxiu Wang、Yue Wang、Junqiao Ding、Lixiang Wang
DOI:10.1039/c7tc03937a
日期:——
A novel furo[3,2-c]pyridine based Ir complex, namely (pfupy)2Ir(acac), has been developed by replacing sulfur with oxygen in the C^N ligand. Compared with the thiophene-containing (pthpy)2Ir(acac), the LUMO level is elevated while the HOMO level keeps almost unchanged for the resultant furan-containing (pfupy)2Ir(acac). As a consequence, the emissive maximum is blue-shifted from 556 nm of (pthpy)2Ir(acac)
一种新的基于呋喃[3,2-c]吡啶的Ir配合物,即(pfupy)2Ir(acac),已通过在C ^ N配体中用氧替代硫而得到开发。与含噻吩的(pthpy)2Ir(acac)相比,LUMO含量升高,而HOMO含量几乎保持不变。结果,发射最大值从(pthpy)2Ir(acac)的556 nm蓝移到(pfupy)2Ir(acac)的538 nm,同时提高了0.80的光致发光量子产率。基于(pfupy)2Ir(acac)的相应器件无需任何外耦合技术即可实现创纪录的30.5%(110.5 cd / A)的外部量子效率(EQE)。即使在1000和5000 cd / m2的亮度下,EQE仍分别保持在26.6%(96.4 cd / A)和25.6%(92.7 cd / A),表明效率下降缓慢。
Eucalyptol as bio-based solvent for Migita–Kosugi–Stille coupling reaction on O,S,N-heterocycle
作者:Joana F. Campos、Sabine Berteina-Raboin
DOI:10.1016/j.cattod.2019.11.004
日期:2020.12
We report herein an investigation on the use of eucalyptol as new solvent for organic transformations applied to the Migita-Kosugi-Stille palladium-catalyzed cross-coupling reaction. Heterocyclescontainingoxygen, sulfur and nitrogen were chosen as starting materials. Eucalyptol turned out to be a viable sustainable alternative to common solvents for this reaction.
Furopyridines.<b>XXII</b>. Elaboration of the<i>C</i>-substituents<i>alpha</i>to the heteronitrogen atom of furo[2,3-<i>b</i>] -, -[3,2-<i>b</i>] -, -[2,3-<i>c</i>]- and -[3,2-<i>c</i>]pyridine
作者:Shunsaku Shiotani、Katsunori Tanigochi
DOI:10.1002/jhet.5570340329
日期:1997.5
cyanopyridine derivatives 1a-d with methyl- and phenylmagnesium bromide yielded the corresponding acylpyridine compounds 2a-d and 3a-d. Furopyridine N-oxides 4a-d were converted into the compounds having a phenyl group at the α-position to the ring nitrogen 5a-d. Reduction of 1a-d and the carboxylic esters 6a-d with diisobutylaluminium hydride yielded the corresponding amines 7a-d and aldehydes 9a-d. The
CYCLIC SULFONAMIDE CONTAINING DERIVATIVES AS INHIBITORS OF HEDGEHOG SIGNALING PATHWAY
申请人:NANT HOLDINGS IP, LLC
公开号:US20150299190A1
公开(公告)日:2015-10-22
The invention relates generally to the creation and use of cyclic sulfonamide containing derivatives to inhibit the hedgehog signaling pathway and to the use of those compounds for the treatment of hyperproliferative diseases and angiogenesis mediated diseases.
Provided is an electroluminescent device. The electroluminescent device includes an anode, a cathode and an organic layer disposed between the anode and the cathode, where the organic layer includes at least a first compound having a structure of H-L-E and a second compound having a general formula of M(L
a
)
m
(L
b
)
n
(L
c
)
q
. The novel material combination consisting of the first compound and the second compound can enable the electroluminescent device to obtain a lower voltage, higher efficiency and an ultra-long lifetime and can provide better device performance. Further provided are a display assembly and a compound combination.