- Electrochemical synthesis and electrochromic application of a novel polymer based on carbazole
-
The compound containing carbazole and thiophene, named as B1 was synthesized with 4-(9H-carbazol-9-yl) phenol and 3,4-dibromo thiophene. Additionally, the electrochemical polymer of B1 was synthesized and coated onto an ITO-glass surface via electrochemic
- Kocaeren, Aysel Aydin
-
-
Read Online
- Constructing host-σ-guest structures to optimize the efficiency of non-doped solution-processed OLEDs
-
Two novel host-σ-guest emitters based on a blue emissive thermally activated delayed fluorescence (TADF) unit were designed and synthesized. By grafting 4TCzBN onto common host materials, these neat films (4TCzBN-o-PhCz and 4TCzBN-o-mCP) emit strong fluor
- Liu, Dan,Zhang, Meng,Chen, Haowen,Ma, Daiyu,Tian, Wenwen,Sun, Kaiyong,Jiang, Wei,Sun, Yueming
-
p. 1221 - 1227
(2021/02/09)
-
- Photoinduced Hydroxylation of Organic Halides under Mild Conditions
-
Presented in this paper is photoinduced hydroxylation of organic halides, providing a mild access to a range of functionalized phenols and aliphatic alcohols. These reactions generally proceed under mild reaction conditions with no need for a photocatalyst or a strong base and show a wide substrate scope as well as excellent functional group tolerance. This work highlights the unique role of NaI that allows a challenging transformation to proceed under mild reaction conditions.
- Cai, Yue-Ming,Xu, Yu-Ting,Zhang, Xin,Gao, Wen-Xia,Huang, Xiao-Bo,Zhou, Yun-Bing,Liu, Miao-Chang,Wu, Hua-Yue
-
supporting information
p. 8479 - 8484
(2019/10/16)
-
- Synthesis of Phenols: Organophotoredox/Nickel Dual Catalytic Hydroxylation of Aryl Halides with Water
-
A highly effective hydroxylation reaction of aryl halides with water under synergistic organophotoredox and nickel catalysis is reported. The OH group of the resulting phenols originates from water, following deprotonation facilitated by an intramolecular base group on the ligand. Significantly, aryl bromides as well as less reactive aryl chlorides served as effective substrates to afford phenols with a wide range of functional groups. Without the need for a strong inorganic base or an expensive noble-metal catalyst, this process can be applied to the efficient preparation of diverse phenols and enables the hydroxylation of multifunctional pharmaceutically relevant aryl halides.
- Yang, Liu,Huang, Zhiyan,Li, Gang,Zhang, Wei,Cao, Rui,Wang, Chao,Xiao, Jianliang,Xue, Dong
-
supporting information
p. 1968 - 1972
(2018/02/06)
-
- Palladium-Catalyzed C-H Bond Activation by Using Iminoquinone as a Directing Group and an Internal Oxidant or a Co-oxidant: Production of Dihydrophenanthridines, Phenanthridines, and Carbazoles
-
A palladium-catalyzed C-H bond activation reaction, via a redox-neutral pathway, for the preparation of dihydrophenanthridine, phenanthridine, and carbazole derivatives from biaryl 2-iminoquinones is developed. The preinstalled iminoquinone was designed to act as a directing group for ortho C-H activation and an internal oxidant or a co-oxidant. This catalysis proceeded through the following sequence: C-H bond activation, coordination and insertion of activated olefins, β-hydride elimination, H-shift, insertion, and protonation or β-hydride elimination. In addition, carbazoles can be prepared efficiently by using this method without the addition of external oxidants.
- Raju, Selvam,Annamalai, Pratheepkumar,Chen, Pei-Ling,Liu, Yi-Hung,Chuang, Shih-Ching
-
p. 4134 - 4137
(2017/08/15)
-
- Visible Light-Mediated Ullmann-Type C-N Coupling Reactions of Carbazole Derivatives and Aryl Iodides
-
The combined use of an iridium-based photocatalyst and a copper salt under blue light emitting diode irradiation enables the Ullmann-type C-N cross-coupling reaction between carbazole derivatives and aryl iodides to proceed under mild conditions.
- Yoo, Woo-Jin,Tsukamoto, Tatsuhiro,Kobayashi, Shu
-
supporting information
p. 3640 - 3642
(2015/07/28)
-
- Transition-Metal-Free Synthesis of Carbazoles and Indoles by an SNAr-Based "aromatic Metamorphosis" of Thiaarenes
-
Dibenzothiophene dioxides, which are readily prepared through oxidation of the parent dibenzothiophenes, undergo nucleophilic aromatic substitution with anilines intermolecularly and then intramolecularly to yield the corresponding carbazoles in a single operation. The "aromatic metamorphosis" of dibenzothiophenes into carbazoles does not require any heavy metals. This strategy is also applicable to the synthesis of indoles. Since electron-deficient thiaarene dioxides exhibit interesting reactivity, which is not observed for that the corresponding electron-rich azaarenes, a combination of a thiaarene-dioxide-specific reaction with the SNAr-based aromatic metamorphosis allows transition-metal-free construction of difficult-to-prepare carbazoles.
- Bhanuchandra,Murakami, Kei,Vasu, Dhananjayan,Yorimitsu, Hideki,Osuka, Atsuhiro
-
supporting information
p. 10234 - 10238
(2015/09/01)
-
- Efficient synthesis of biscarbazoles by palladium-catalyzed twofold C-N coupling and C-H activation reactions
-
A new and efficient strategy for the synthesis of 3,9′- and 2,9′-biscarbazoles was developed. Our strategy relies on the cyclization of 1,1′-biphenyl-2,2′-diyl bis(trifluoromethanesulfonate) with 4- or 3-anisidine, transformation of the methoxy to a triflate group and subsequent oxidative Pd-catalyzed cyclization with various anilines. This journal is the Partner Organisations 2014.
- Hung, Tran Quang,Thang, Ngo Ngoc,Hoang, Do Huy,Dang, Tuan Thanh,Villinger, Alexander,Langer, Peter
-
p. 2596 - 2605
(2014/04/17)
-
- PHOTOTHERAPY METHODS AND DEVICES COMPRISING EMISSIVE ARYL-HETEROARYL COMPOUNDS
-
Disclosed herein are compounds represented by a formula: R1—Ar1—X—Ar2—Ar3-Het, wherein R1, Ar1, X, Ar2, Ar3, and Het are described herein. Compositions and light-emitting devices related thereto are also disclosed.
- -
-
-
- EMISSIVE ARYL-HETEROARYL COMPOUNDS
-
Disclosed herein are compounds represented by Formula 1, wherein R1, Ar1, X, Ar2, Ar3, and Het are described herein. Compositions and light-emitting devices related thereto are also disclosed.
- -
-
-
- EMISSIVE ARYL-HETEROARYL COMPOUNDS
-
Disclosed herein are compounds represented by Formula 1, wherein R1, Ar1, X, Ar2, Ara, and Het are described herein. Compositions and light-emitting devices related thereto are also disclosed.
- -
-
-
- USE OF DIPHENYLAMINO-BIS(PHENOXY)- AND BIS(DIPHENYLAMINO)-PHENOXYTRIAZINE COMPOUNDS
-
The present invention relates to an organic light-emitting diode comprising at least one diphenylaminobis(phenoxy)triazine or at least one bis(diphenylamino)phenoxytriazine compound, to a light-emitting layer comprising at least one diphenylamino-bis(phenoxy)triazine or at least one bis(diphenylamino)phenoxytriazine compound, to the use of the aforementioned compounds as a matrix material, hole/exciton blocker material, electron/exciton blocker material, hole injection material, electron injection material, hole conductor material and/or electron conductor material, and to a device selected from the group consisting of stationary visual display units, mobile visual display units and illumination units comprising at least one inventive organic light-emitting diode.
- -
-
-