103012-26-6Relevant articles and documents
Rh(I)-catalyzed decarbonylation synthesis of carbazoles via C-N cleavage
Fan, Weizheng,Jiang, Shan,Feng, Bainian
, p. 4035 - 4038 (2015)
A one-pot Rh(I)-catalyzed synthesis of 9-H carbazoles via C-N bond cleavage by activation of aldehyde C-H bonds is reported. This protocol offers good yields and tolerates a broad range of functional groups. Based on the extensive control experiments, we propose a plausible decarbonylation mechanism.
A strategy to construct multifunctional TADF materials for deep blue and high efficiency yellow fluorescent devices
Guo, Runda,Liu, Wei,Lv, Xialei,Sun, Shuaiqiang,Wang, Lei,Wang, Yaxiong,Ye, Shaofeng,Zhang, Qing
, p. 4818 - 4826 (2020)
Three deep blue thermally activated delayed fluorescence (TADF) molecules are designed by connecting three different sterically hindered electron-donating groups with 2,6-diphenylpyrimidine acceptors. The rigid structures based on carbazole derivatives en
Carbazole synthesis by platinum-catalyzed C-H functionalizing reaction using water as reoxidizing reagent
Yamamoto, Mitsuru,Matsubara, Seijiro
, p. 172 - 173 (2007)
Treatment of 1-aminobiphenyl and diphenylamine with catalytic amount of Pt/C in hydrothermal water (250 °C, 4 MPa) affords 9H-carbazole in good yield. In this catalytic cycle, water works as reoxidizing reagent for platinum catalyst. Copyright
One-pot synthesis of carbazoles from cyclohexanones and arylhydrazine hydrochlorides under metal-free conditions
Xiao, Fuhong,Liao, Yunfeng,Wu, Mingyue,Deng, Guo-Jun
, p. 3277 - 3280 (2012)
One-pot synthesis of carbazoles from cyclohexanones and arylhydrazine hydrochlorides is disclosed. Various substituted carbazoles were obtained in moderate to good yields via a sequence of condensation, cyclization and dehydrogenation under metal free conditions using molecular oxygen as an oxidant.
Synthesis of Carbazoles by a Diverted Bischler-Napieralski Cascade Reaction
Faltracco, Matteo,Ortega-Rosales, Said,Janssen, Elwin,Cioc, Rǎzvan C.,Vande Velde, Christophe M. L.,Ruijter, Eelco
, p. 3100 - 3104 (2021/05/05)
An unforeseen twist in a seemingly trivial Bischler-Napieralski reaction led to the selective formation of an unexpected carbazole product. The reaction proved to be general, providing access to a range of diversely substituted carbazoles from readily available substrates. Judicious variation of substituents revealed a complex cascade mechanism comprising no less than 10 elementary steps, that could be diverted in multiple ways toward various other carbazole derivatives.
A novel bipolar host material based on carbazole and 1,3,5-triazine with an extremely low efficiency roll-off for green PhOLEDs
Fan, Xiaxia,Gao, Zhixiang,Huang, Jinhai,Li, Wei,Miao, Yanqin,Qu, Wenshan,Shi, Yunlong,Wang, Hua,Yu, Guichen,Zhou, Haitao
, (2021/10/04)
In this contribution, a novel bipolar host material, namely CzTrz, consisting of a phenylcarbazole for hole transport and a diphenyltriazine for electron transport, was synthesized and investigated. Besides, a carbazole-based unipolar host BCz2 was designed as a reference. Both CzTrz and BCz2 display good thermal stability, high triplet energy level (ET) and suitable frontier orbital levels. Green PhOLEDs hosted by CzTrz and BCz2 show turn-on voltage (Von) of 3.5 and 3.8 V, maximum luminance (Lmax) of 30,280 and 35,050 cd m?2, and maximum external quantum efficiency (EQEmax) of 15.49 and 11.84%, respectively. Remarkably, the CzTrz-based device reveals an extremely low efficiency roll-off at the high luminance, for example, 15.35% at 1000 cd m?2 and 13.85% at 5000 cd m?2, corresponding to merely 0.9% and 10.6% roll-off percentage, which is among the best results ever reported as green bipolar hosts.
COMPOUND FOR ORGANIC OPTOELECTRONIC DEVICE, COMPOSITION FOR ORGANIC OPTOELECTRONIC DEVICE, ORGANIC OPTOELECTRONIC DEVICE, AND DISPLAY DEVICE
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Paragraph 0219; 0220-0221, (2021/09/03)
The present invention relates to a compound for an organic optoelectronic device, represented by Chemical Formula 1; a composition for an organic optoelectronic device, including same; an organic optoelectronic device; and a display device. The description of Chemical Formula 1 is the same as that defined in the specification.
An electroluminescent compound and an electroluminescent device comprising the same
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Paragraph 0266; 0279-0282; 0594-0598, (2020/09/26)
The present invention relates to an organic light-emitting compound represented by [Chemical formula 1]. An organic electroluminescent device comprising the organic light-emitting compound in the present invention has excellent power efficiency, light-emitting efficiency, and long life cycle because the present invention can be operated by a lower driving-voltage in comparison with a device comprising conventional phosphorescent host materials. [Chemical formula 1].
An organoelectro luminescent compounds and organoelectro luminescent device using the same
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Paragraph 0256; 0273-0276; 0480; 0483-0484, (2021/01/06)
The present invention relates to an organic light emitting compound represented by chemical formula I to III, and to an organic electroluminescent device including the same. According to the present invention, the organic electroluminescent device including the organic light emitting compound uses low driving voltages and has excellent efficiency of light emission.
An electroluminescen compound and an electroluminescent device comprising the same
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Paragraph 0270; 0283-0286; 0336; 0341-0344, (2021/02/02)
The present invention relates to an organic light-emitting compound represented by chemical formula 1. An organic electroluminescent device comprising the organic light-emitting compound in the present invention has excellent power efficiency, light-emitting efficiency, and long life cycle because the present invention can be operated by a lower driving-voltage in comparison with a device comprising conventional phosphorescent host materials.
