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.
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
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.
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.
