19264-68-7Relevant academic research and scientific papers
Palladium-catalyzed phosphination and amination through C–H bond functionalization on biphenyl: Amido-substituent as directing group
Kao, I-Hsiang,Wang, Ching-Yu,Chang, Yu-Chang,Wu, Chu-Lun,Chiu, Yu-Jen,Hong, Fung-E
, p. 387 - 397 (2019)
The formation of N-(2’-(diphenylphosphoryl)-[1,1′-biphenyl]-2-yl)-2,3,4,5,6-pentafluorobenzamide (3_eaaa) has been achieved through the palladium-catalyzed and Ag(I)-assisted C–H functionalization of N-([1,1′-biphenyl]-2-yl)-2,3,4,5,6-pentafluorobenzamide
Visible-light induced synthesis of 8H-indolo[3,2,1-de]phenanthridin-8-ones and related heterocycles using benzothiadiazole as photocatalyst
Li, Hanjie,Lu, Ping,Qiao, Li,Wang, Yanguang,Zhang, Ke
, (2022/02/02)
A simple and mild approach to access polycyclic 8H-indolo[3,2,1-de]phenanthridin-8-ones through a visible-light induced free radical cyclization of (2-bromophenyl)(9H-carbazol-9-yl)methanones using benzothiadiazole-containing photocatalyst is reported. This transition metal free method can be utilized for the synthesis of 7H-thieno[2′,3′:4,5]pyrido[3,2,1-jk]carbazol-7-one, 14H-isoquinolino[4,3,2-kl]phenoxazin-14-one, 14H-isoquinolino[4,3,2-kl]phenothiazin-14-one, and 10,11,12,13-tetrahydro-8H-indolo[3,2,1-de]phenanthridin-8-one. Moreover, some products were found to emit strong blue or green fluorescence.
Electrochemical Palladium-Catalyzed Intramolecular C—H Amination of 2-Amidobiaryls for Synthesis of Carbazoles
Gao, Xinlong,Lei, Aiwen,Wang, Pan,Wang, Qingqing,Zhang, Heng,Zhang, Xiaojing
supporting information, p. 143 - 148 (2020/12/18)
The synthesis of carbazoles based on the electrochemical Pd-catalyzed intramolecular C—H amination of 2-amidobiaryls through oxidative cross coupling has been achieved under mild reaction conditions. The reaction can be carried out in undivided cell without the addition of external chemical oxidant. Besides good functional group compatibility, the desired carbazoles can be scaled up and modified easily. Compared with previous methods, this protocol affords a simple and sustainable avenue for the construction of carbazoles.
Method for the synthesis of 1-carbazole-boric acid pinacol ester by amide ortho-orthogonal directing borification
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Paragraph 0044-0045, (2022/01/04)
The present invention discloses a method of synthesizing 1-carbazole - boronic acid pinacol ester by orthophoreinization of an amide orthostatic directional boronate, the steps comprising: (1) the carbazole and the amidation reagent under the action of a
Electrochemical Synthesis of Carbazoles by Dehydrogenative Coupling Reaction
Kehl, Anton,Schupp, Niclas,Breising, Valentina M.,Schollmeyer, Dieter,Waldvogel, Siegfried R.
supporting information, p. 15847 - 15851 (2020/11/02)
A constant current protocol, employing undivided cells, a remarkably low supporting electrolyte concentration, inexpensive electrode materials, and a straightforward precursor synthesis enabling a novel access to N-protected carbazoles by anodic N,C bond formation using directly generated amidyl radicals is reported. Scalability of the reaction is demonstrated and an easy deblocking of the benzoyl protecting group is presented.
X-ray excited ultralong room-temperature phosphorescence for organic afterglow scintillators
Chen, Qiushui,Chen, Runfeng,Huang, Wei,Li, Huanhuan,Peng, Hao,Tang, Lele,Tao, Ye,Tian, Dan,Yan, Xi,Yang, Qingqing,Zan, Jie
supporting information, p. 13559 - 13562 (2020/11/17)
We present X-ray-excitable organic ultralong room temperature phosphorescence (X-OURTP) for afterglow scintillators through implanting lone-pair electron involved n-π? transitions and efficient charge transfer characters into H-aggregations of organic cry
N-Acylcarbazoles and N-Acylindoles: Electronically Activated Amides for N-C(O) Cross-Coupling by Nlpto Ar Conjugation Switch
Buchspies, Jonathan,Rahman, Md. Mahbubur,Szostak, Roman,Szostak, Michal
supporting information, p. 4703 - 4709 (2020/06/17)
The development of new amide precursors for selective, catalytic activation of carbon-nitrogen bonds in amides is a fundamental objective of this emerging reactivity manifold. We report the palladium-catalyzed Suzuki-Miyaura cross-coupling of N-acylcarbazoles and N-acylindoles with arylboronic acids by a highly selective N-C(O) cleavage. The key amide bond ground-state destabilization stems from Nlp to Ar conjugation and enables us for the first time to achieve reactivity similar to that for N-acylsulfonamide and N-acylcarbamate activation in simple anilides.
Acyl-Directed ortho-Borylation of Anilines and C7 Borylation of Indoles using just BBr3
Iqbal, Saqib A.,Cid, Jessica,Procter, Richard J.,Uzelac, Marina,Yuan, Kang,Ingleson, Michael J.
supporting information, p. 15381 - 15385 (2019/10/22)
Indoles are privileged heterocycles found in many biologically active pharmaceuticals and natural products. However, the selective functionalization of the benzenoid moiety in indoles in preference to the more reactive pyrrolic unit is a significant challenge. Herein we report that N-acyl directing groups enable the C7-selective C?H borylation of indoles using just BBr3. This transformation shows some functional-group tolerance and notably proceeds with C6 substituted indoles. The directing group can be readily removed in situ and the products isolated as the pinacol boronate esters. Acyl-directed electrophilic borylation can be extended to carbazoles and anilines with excellent ortho selectivity. 4-amino-indoles are amenable to this process, with acyl group installation and directed electrophilic C?H borylation enabling selective formation of C5-BPin-indoles.
TICT (twisted intramolecular charge transfer) triplet-state electroluminescent material and device
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Paragraph 0056-0059, (2019/09/17)
The invention provides an electroluminescent material and an electroluminescent device utilizing the same as a luminous layer. The electroluminescent material comprises a compound represented in formula I in the description, wherein R1, R2, R3, R4 and R5
SELECTIVE INHIBITORS OF GENOTOXIC STRESS-INDUCED IKK/NF-kB PATHWAYS
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Page/Page column 86, (2018/05/27)
The invention relates to chemical compounds and their use as a medicament in the treatment of a disease associated with genotoxic stress-induced I KK/NF-κΒ (NF-kappaB) activation, preferably in the treatment of a subject suffering from cancer exhibiting g
