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Fisyuk AS, Samsonenko AL, Kostyuchenko AS, Zheleznova TY, Shuvalov VY, Vlasov IS. Synthesis of New Fused 4H-Thieno[3,2-b]pyrrole Derivatives via Decomposition of Methyl 4-Azido-5-arylthiophene-2-carboxylates. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1799-9339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractThis article is focused on the development of practical approaches to the synthesis of 4-azido-5-arylthiophene-2-carboxylates and 4-amino-5-arylthiophene-2-carboxylates using the Fiesselmann reaction. The photochemical and thermal (including microwave-assisted) decomposition of 4-azido-5-arylthiophene-2-carboxylates have been studied in order to synthesize fused 4H-thieno[3,2-b]pyrrole derivatives. The proposed approaches allow to obtain functionally substituted heteroacenes, which are of interest as building blocks for organic semiconductors.
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Affiliation(s)
- Alexander S. Fisyuk
- Laboratory of New Organic Materials, Omsk State Technical University
- Department of Organic Chemistry, Omsk F. M. Dostoevsky State University
| | - Anna L. Samsonenko
- Laboratory of New Organic Materials, Omsk State Technical University
- Faculty of Chemistry, Silesian University of Technology
| | - Anastasia S. Kostyuchenko
- Laboratory of New Organic Materials, Omsk State Technical University
- Department of Organic Chemistry, Omsk F. M. Dostoevsky State University
| | - Tatyana Yu. Zheleznova
- Laboratory of New Organic Materials, Omsk State Technical University
- Department of Organic Chemistry, Omsk F. M. Dostoevsky State University
| | - Vladislav Yu. Shuvalov
- Laboratory of New Organic Materials, Omsk State Technical University
- Department of Organic Chemistry, Omsk F. M. Dostoevsky State University
| | - Igor S. Vlasov
- Department of Organic Chemistry, Omsk F. M. Dostoevsky State University
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Zhao X, Li Q, Xu J, Wang D, Zhang-Negrerie D, Du Y. Cascade Synthesis of Benzothieno[3,2-b]indoles under Oxidative Conditions Mediated by CuBr and tert-Butyl Hydroperoxide. Org Lett 2018; 20:5933-5937. [DOI: 10.1021/acs.orglett.8b02614] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xiaoyuan Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Qiao Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Jun Xu
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Donghua Wang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Daisy Zhang-Negrerie
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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Tsuchimoto T, Matsubayashi H, Kaneko M, Nagase Y, Miyamura T, Shirakawa E. Indium-Catalyzed Annulation of 2-Aryl- and 2-Heteroarylindoles with Propargyl Ethers: Concise Synthesis and Photophysical Properties of Diverse Aryl- and Heteroaryl-Annulated[a]carbazoles. J Am Chem Soc 2008; 130:15823-35. [DOI: 10.1021/ja803954e] [Citation(s) in RCA: 176] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Teruhisa Tsuchimoto
- Department of Applied Chemistry, School of Science and Technology, Meiji University, Higashimita, Tama, Kawasaki 214-8571, Japan, Graduate School of Materials Science, Japan Advanced Institute of Science and Technology, Asahidai, Nomi, Ishikawa 923-1292, Japan, and Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Hiromichi Matsubayashi
- Department of Applied Chemistry, School of Science and Technology, Meiji University, Higashimita, Tama, Kawasaki 214-8571, Japan, Graduate School of Materials Science, Japan Advanced Institute of Science and Technology, Asahidai, Nomi, Ishikawa 923-1292, Japan, and Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Masayoshi Kaneko
- Department of Applied Chemistry, School of Science and Technology, Meiji University, Higashimita, Tama, Kawasaki 214-8571, Japan, Graduate School of Materials Science, Japan Advanced Institute of Science and Technology, Asahidai, Nomi, Ishikawa 923-1292, Japan, and Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Yuta Nagase
- Department of Applied Chemistry, School of Science and Technology, Meiji University, Higashimita, Tama, Kawasaki 214-8571, Japan, Graduate School of Materials Science, Japan Advanced Institute of Science and Technology, Asahidai, Nomi, Ishikawa 923-1292, Japan, and Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Takuhiro Miyamura
- Department of Applied Chemistry, School of Science and Technology, Meiji University, Higashimita, Tama, Kawasaki 214-8571, Japan, Graduate School of Materials Science, Japan Advanced Institute of Science and Technology, Asahidai, Nomi, Ishikawa 923-1292, Japan, and Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Eiji Shirakawa
- Department of Applied Chemistry, School of Science and Technology, Meiji University, Higashimita, Tama, Kawasaki 214-8571, Japan, Graduate School of Materials Science, Japan Advanced Institute of Science and Technology, Asahidai, Nomi, Ishikawa 923-1292, Japan, and Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
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Argus MF, Arcos JC, Pastor KM, Wu BC, Venkatesan N. Dimethylnitrosamine-demethylase: absence of increased enzyme catabolism and multiplicity of effector sites in repression. Hemoprotein involvement. Chem Biol Interact 1976; 13:127-40. [PMID: 1260949 DOI: 10.1016/0009-2797(76)90002-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Evidence is presented that the previously observed decrease of the Vmax of hepatic microsomal demethylation of dimethylnitrosamine (DMN), following pretreatment of rats with 3-methylcholanthrene (MC), is not due to increase in the rate of breakdown but to decrease of de novo synthesis. Determinations of Vmax at time intervals in the transition from the high steady-state level induced by a carbohydrate-devoid casein diet, down to the low steady-state level of carbohydrate-containing basal diet, yielded two consecutive slopes; descent from the basal diet level to the lower steady-state level following pretreatment with MC yielded one slope. Plotting these slopes against the initial Vmax values gave a typical exponential curve (or straight line if the logs of slopes are used) indicating that the rate of enzyme decay in the MC-treated animals is not greater than that expected from normal enzyme catabolism. A multiplicity of effector sites appears to be involved in the repressor action of different structural types; for example, repression by MC (46.6%) and by phenobarbital (23.9%) in combination are approximately additive (62.0%), rather than competitive, indicating that the two agents act at different sites. A P-450 type cytochrome is involved in the demethylation of DMN. DMN-demethylase is inhibited by carbon monoxide, but the susceptibility to CO is far greater than that observed previously with 3,4-benzopyrene hydroxylation; inhibition of DMN-demethylase as a function of CO concentration follows typical enzyme kinetics. However, while both phenobarbital and MC powerfully repress the DMN-demethylase, we have confirmed that they are strong inducers of the synthesis of P-450 and P-448, respectively, as estimated from the difference spectra.
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