Photoinduced Synthesis of Dibenzofurans: Intramolecular and Intermolecular Comparative Methodologies
作者:Patricia Camargo Solórzano、Federico Brigante、Adriana B. Pierini、Liliana B. Jimenez
DOI:10.1021/acs.joc.8b00742
日期:2018.8.3
The SRN1 reaction has been used as a powerful tool for the synthesis of heterocycles, and only a few studies about photoinduced intramolecular cyclization to generate a new C–O bond by a radical pathway have been reported. This work introduces two strategies for the synthesis of substituted dibenzofurans by electron transfer (eT) reactions. The first one is a three-step process that comprises bromination
S RN 1反应已被用作合成杂环的有力工具,并且仅报道了少数有关通过自由基途径光诱导分子内环化以生成新的C-O键的研究。这项工作介绍了两种通过电子转移(eT)反应合成取代的二苯并呋喃的策略。第一个是三步过程,其中包括溴化o-芳基苯酚,Suzuki-Miyaura交叉偶联和光诱导的环化反应,以获得上述产物。第二种是无金属工艺,不需要任何光催化剂。测试了不同的溶剂,收率范围从低到中等。在两种方法之间建立了比较,表明第二种方法最适合合成二苯并呋喃。
Chemoselective arylation of phenols with bromo-nitroarenes: synthesis of nitro-biaryl-ols and their conversion into benzofurans and carbazoles
A series of substituted phenols were chemoselectively arylated with bromo-nitroarenes using KOtBu at room temperature via an SNAr pathway.
一系列取代酚在室温下使用KOtBu与溴化硝基芳烃进行化学选择性芳基化,通过SNAr途径。
CONDENSED-CYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING THE SAME
申请人:Samsung Display Co., Ltd.
公开号:US20190071458A1
公开(公告)日:2019-03-07
A condensed-cyclic compound and an organic light-emitting device including the same are provided. The compound is represented by the formula
wherein ring A, ring B, and ring C are each independently selected from a C
5
-C
30
carbocyclic group and a C
1
-C
30
heterocyclic group, each of L
1
to L
9
is independently selected from a substituted or unsubstituted C
3
-C
10
cycloalkylene group, a substituted or unsubstituted C
1
-C
10
heterocycloalkylene group, a substituted or unsubstituted C
3
-C
10
cycloalkenylene group, a substituted or unsubstituted C
1
-C
10
heterocycloalkenylene group, a substituted or unsubstituted C
6
-C
60
arylene group, a substituted or unsubstituted C
1
-C
60
heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group, and each of Ar
1
to Ar
6
, R1 to R3, R
11
, and R
12
are further defined. The compound may be incorporated into one or more layers of an organic light-emitting diode device.
[EN] BENZIMIDAZOLO[1,2-A]BENZIMIDAZOLE DERIVATIVES FOR ORGANIC LIGHT EMITTING DIODES<br/>[FR] DÉRIVÉS BENZIMIDAZOLO[1,2-A]BENZIMIDAZOLE POUR DES DIODES ÉLECTROLUMINESCENTES ORGANIQUES
申请人:IDEMITSU KOSAN CO
公开号:WO2017093958A1
公开(公告)日:2017-06-08
Compounds of formula (I) and their use in electronic devices, especially electroluminescent devices: (I) wherein at least two of the substituents R1 and R2, R2 and R3, R3 and R4, R5 and R6, R6 and R7, or R7 and R8 form together one of the following ring systems (IIa), (IIb) (IIc). When used as charge transport material, charge blocker material and/or host material in electroluminescent devices, the compounds of formula (I) may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices and reduced driving voltage of electroluminescent devices.
SILICON-CONTAINING ELECTRON TRANSPORTING MATERIAL AND ITS APPLICATION
申请人:BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
公开号:US20200131204A1
公开(公告)日:2020-04-30
A silicon-containing electron transporting material and its application are disclosed. The silicon-containing electron transporting material employs a silicon-containing compound with a novel structure containing one or more silicon atoms and a specific group. The compound can be used as an electron transporting layer of an electroluminescent device, which can effectively improve the lifetime of the device and improve device performance. An electroluminescent device and compound formulation are also disclosed.