1185863-85-7Relevant academic research and scientific papers
Synthesis and Photophysical Study of Heteropolycyclic and Carbazole Motif: Nickel-Catalyzed Chelate-Assisted Cascade C-H Activations/Annulations
Prusty, Namrata,Banjare, Shyam Kumar,Mohanty, Smruti Ranjan,Nanda, Tanmayee,Yadav, Komal,Ravikumar, Ponneri C.
, p. 9041 - 9046 (2021/11/30)
Herein, nickel-catalyzed synthesis of polyarylcarbazole through sequential C-H bond activations has been described. Regioselective indole C2/C3 functionalization has been achieved in the presence of indole C7-H, which is quite challenging. In addition, this approach also gives easy access to building a heteropolycyclic motif through C6/C7 C-H functionalization of indoline. This methodology is not limited to aromatic internal alkynes as coupling partners; aliphatic alkynes have also shown good tolerance. Notably, during the optimization the catalytic enhancement with sodium iodide as an additive has been observed. We have also studied the photophysical properties of these highly conjugated molecules.
An Expeditious Benzannulation Reaction of Indol-3-yl-but-3-yn-2-ols to Substituted 2-Iodocarbazoles via Domino 5-endo Spirocyclization/Selective Vinyl Shift and Aromatization
Yaragorla, Srinivasarao,Dada, Ravikrishna,Bag, Debojyoti
, p. 6983 - 6988 (2019/11/13)
Regioselective benzannulation reaction of indol-3-yl-but-3-yn-2-ols to functionaly embellished 2-iodocarbazoles is described for the first time using iodine at room temperature in an open flask. This reaction proceeds through a cascade of 5-endo spirocyclization, ring-rearrangement through a vinyl shift, and aromatization in a short time. This protocol offers direct access to uncovered 2-iodocarbazoles, with a broad substrate scope and good to moderate yields. Further, we have demonstrated the synthetic potential of these compounds using cross-coupling reactions.
Compound for organic optoelectronic element, organic optoelectronic element comprising same, and display device
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Paragraph 34, (2019/05/15)
The present invention relates to a compound for an organic optoelectronic element represented by Chemical Formula 1, an element comprising the same, and a display device comprising the organic optoelectronic element (details of Chemical Formula 1 are as described in the specification).
Fused ring construction around pyrrole, indole, and related compounds via palladium-catalyzed oxidative coupling with alkynes
Yamashita, Mana,Horiguchi, Hakaru,Hirano, Koji,Satoh, Tetsuya,Miura, Masahiro
scheme or table, p. 7481 - 7488 (2010/01/06)
(Chemical Equation Presented) The selective synthesis of 1,2,3,4-tetrasubstituted carbazoles can be performed effectively through the palladium-catalyzed oxidative coupling reactions of N-substituted indoles or their carboxylic acid derivatives with alkyn
