Relevant bibliographies by topics / 2-b]carbazoles

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  1. Journal articles

Academic literature on the topic '2-b]carbazoles'

Author: Grafiati
Published: 4 June 2021
Last updated: 18 February 2022

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Journal articles on the topic "2-b]carbazoles"

1

Irgashev, Roman A., Nikita A. Kazin, Gennady L. Rusinov, and Valery N. Charushin. "Nitration of 5,11-dihydroindolo[3,2-b]carbazoles and synthetic applications of their nitro-substituted derivatives." Beilstein Journal of Organic Chemistry 13 (July 14, 2017): 1396–406. http://dx.doi.org/10.3762/bjoc.13.136.

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A new general approach to double nitration of 6,12-di(hetero)aryl-substituted and 6,12-unsubstituted 5,11-dialkyl-5,11-dihydroindolo[3,2-b]carbazoles by acetyl nitrate has been developed to obtain their 2,8-dinitro and 6,12-dinitro derivatives, respectively. A formation of mono-nitro derivatives (at C-2 or C-6) from the same indolo[3,2-b]carbazoles has also been observed in several cases. Reduction of 2-nitro and 2,8-dinitro derivatives with zinc powder and hydrochloric acid has afforded 2-amino- and 2,8-diamino-substituted indolo[3,2-b]carbazoles, while reduction of 6,12-dinitro derivatives u
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2

Gao, Wentao, Meiru Zheng, and Yang Li. "A novel and facile synthesis of 3-(2-benzofuroyl)- and 3,6-bis(2-benzofuroyl)carbazole derivatives." Beilstein Journal of Organic Chemistry 7 (November 17, 2011): 1533–40. http://dx.doi.org/10.3762/bjoc.7.180.

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A facile synthesis of hitherto unreported 3-(2-benzofuroyl)carbazoles 3a–k, 3,6-bis(2-benzofuroyl)carbazoles 5a–k, and naphtho[2,1-b]furoylcarbazoles 3l and 5l is described. The synthesis mainly relies on the ultrasound-assisted Rap–Stoermer reaction of 3-chloroacetyl- (1) or 3,6-dichloroacetyl-9-ethyl-9H-carbazole (4) with various salicylaldehydes 2a–k as well as 2-hydroxy-1-naphthaldehyde (2l) in CH3CN with the presence of PEG-400 as catalyst. The procedure offers easy access to benzofuroylcarbazoles in short reaction times and the products are obtained in moderate to good yields.
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3

Li, Deng-Yuan, An Wang, Xiao-Ping Zhu, Wei Feng, and Pei-Nian Liu. "Direct access to substituted benzo[b]carbazoles through cascade annulation of 2-vinylbenzaldehydes with indoles." Chemical Communications 55, no. 23 (2019): 3339–42. http://dx.doi.org/10.1039/c8cc10253h.

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A highly efficient palladium-catalyzed cascade annulation of 2-vinylbenzaldehydes with indoles has been achieved to afford 6-(3-indolyl)benzo[b]carbazoles under mild conditions in good yield and with excellent regioselectivity.
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4

Khan, Maria Aqeel, Saba Fazal-ur-Rehman, Abdul Hameed, et al. "Regioselective synthesis of novel 2,3,4,4a-tetrahydro-1H-carbazoles and their cholinesterase inhibitory activities." RSC Advances 5, no. 73 (2015): 59240–50. http://dx.doi.org/10.1039/c5ra10461k.

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5

Srour, Hassan, Thu-Hong Doan, Elisabeth Da Silva, Richard J. Whitby, and Bernhard Witulski. "Synthesis and molecular properties of methoxy-substituted diindolo[3,2-b:2′,3′-h]carbazoles for organic electronics obtained by a consecutive twofold Suzuki and twofold Cadogan reaction." Journal of Materials Chemistry C 4, no. 26 (2016): 6270–79. http://dx.doi.org/10.1039/c6tc02009g.

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A set of methoxy-substituted diindolo[3,2-b:2′,3′-h]carbazoles has been synthesized by twofold Suzuki–Miyaura, Cadogan andN-alkylation reactions starting fromN-hexyl-2,7-dibromo-3,6-dinitro carbazole.
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6

Dmitriev, Artem V., Azat R. Yusupov, Roman A. Irgashev, et al. "Electron-hole mobility in 6,12-di(2-thienyl)indolo[3,2-b]carbazoles." Mendeleev Communications 26, no. 6 (2016): 516–17. http://dx.doi.org/10.1016/j.mencom.2016.11.019.

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7

ESTEVEZ, J., R. J. ESTEVEZ, and L. CASTEDO. "ChemInform Abstract: A New, Simple, Efficient Synthesis of Benzo(b)carbazoles and Indeno(1, 2-b)indoles." ChemInform 25, no. 16 (2010): no. http://dx.doi.org/10.1002/chin.199416152.

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8

Gribble, G. W. "Novel chemistry of indole in the synthesis of heterocycles." Pure and Applied Chemistry 75, no. 10 (2003): 1417–32. http://dx.doi.org/10.1351/pac200375101417.

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Indoles that are substituted at the 2- or 3-position with electron-withdrawing groups (nitro, phenylsulfonyl) undergo nucleophilic addition, 1,3-dipolar cycloaddition, and Diels–Alder reactions to give a variety of indoles, pyrroloindoles, and carbazoles. New methods for the synthesis of furo[3,4-b]indoles and the novel ring system furo[3,4-b]pyrrole are described for the first time. Diels–Alder reactions of furo[3,4-b]pyrroles afford indoles after dehydration of the primary cycloadducts. Efficient syntheses of both 2- and 3-nitroindoles from indole are reported, and the first generation and s
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9

Katritzky, Alan R., Jianqing Li, and Christian V. Stevens. "Facile Synthesis of 2-Substituted Indoles and Indolo[3,2-b]carbazoles from 2-(Benzotriazol-1-ylmethyl)indole." Journal of Organic Chemistry 60, no. 11 (1995): 3401–4. http://dx.doi.org/10.1021/jo00116a026.

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10

Santoso, Mardi, Naresh Kumar, and David StClair Black. "Some acid-catalysed reactions of indol-3-yl and indol-2-yl disubstituted methanols." Collection of Czechoslovak Chemical Communications 74, no. 7-8 (2009): 1137–50. http://dx.doi.org/10.1135/cccc2009023.

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1-Substituted indol-3-yl and indol-2-yl disubstituted methanols do not undergo acid-catalysed trimerisation to yield indolocyclotriveratrylenes, unlike the related primary 1-substituted indol-3-yl- and -2-ylmethanols. The 1-substituted indol-3-ylmethanols 10 and 11 gave diindol-3-ylmethanes 12 and 13, respectively, on treatment with p-toluenesulfonic acid in dichloromethane. In contrast, the indol-2-ylmethanols 22 and 23 gave the reduced indolo[3,2-b]carbazoles 24 and 25, respectively, on treatment with boron trifluoride etherate in benzene. An X-ray crystal structure of compound 24 is describ
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