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Zhang X, Zhang J, Liu Z, Bi W, Shen J, Li G. Efficient Solvent-Free Synthesis of Indolizines Using CuBr Catalyst from Pyridine, Acetophenone, and Electron-Deficient Alkenes. Molecules 2024; 29:2061. [PMID: 38731552 PMCID: PMC11085153 DOI: 10.3390/molecules29092061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/20/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024] Open
Abstract
Herein, we have developed a new approach for the synthesis of indolizine via Cu-catalyzed reaction of pyridine, acetophenone, and nitroolefin under mild conditions in high yields. This reaction involved the formation of C-N and C-C bonds and new indolizine compounds with high stereoselectivity and excellent functional group tolerance.
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Affiliation(s)
- Xueguo Zhang
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, China
| | | | | | | | | | - Guang Li
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, China
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Slavova S, Antonov L. Azaindolizine proton cranes attached to 7-hydroxyquinoline and 3-hydroxypyridine: a comparative theoretical study. Phys Chem Chem Phys 2024; 26:7177-7189. [PMID: 38349360 DOI: 10.1039/d3cp04635d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Theoretical design of several proton cranes, based on 7-hydroxyquinoline and 3-hydroxypyridine as proton-transfer frames, has been attempted using ground and excited-state density functional theory (DFT) calculations in various environments. Imidazo[1,2-a]pyridine, pyrazolo[1,5-a]pyridine and benzimidazole were considered as proton crane units. The proton crane action requires the existence of a single enol-like form in the ground state, which under excitation goes to the end keto-like one through a series of consecutive excited-state intramolecular proton transfers (ESIPT) and twisting steps with the participation of a crane unit, resulting in a long-range intramolecular proton transfer. The results suggest that 3-hydroxypyridine is not suitable for a proton-transfer frame and 8-(imidazo[1,2-a]pyridin-2-yl)quinolin-7-ol and 8-(pyrazolo[1,5-a]pyridin-2-yl)quinolin-7-ol behave as non-conjugated proton cranes, instead of tautomeric re-arrangement in the latter, which was thought to be possible.
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Affiliation(s)
- Sofia Slavova
- Institute of Electronics, Bulgarian Academy of Sciences, 1784 Sofia, Bulgaria.
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Liudmil Antonov
- Institute of Electronics, Bulgarian Academy of Sciences, 1784 Sofia, Bulgaria.
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Marandi G, Hazeri N, Maghsoodlou MT, Habibi-Khorassani SM, Torbati NA, Rostami-Charati F, Skelton BW, Makha M. Synthesis of Cyano-pyrrolo[1,2-a][1,10]phenanthroline Derivatives Using a Multicomponent Condensation. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1532] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ghasem Marandi
- Shahid Bakeri High Education Center of Miandoab; Urmia University; Urmia; Iran
| | - Nourallah Hazeri
- Department of Chemistry; The University of Sistan and Baluchestan; P. O. Box: 98135-674; Zahedan; Iran
| | - Malek T. Maghsoodlou
- Department of Chemistry; The University of Sistan and Baluchestan; P. O. Box: 98135-674; Zahedan; Iran
| | | | | | | | - Brian W. Skelton
- Chemistry School of Biomedical, Biomolecular and Chemical Science, M313; University of Western Australia; Perth; Western Australia; 6009; Australia
| | - Mohamed Makha
- Chemistry School of Biomedical, Biomolecular and Chemical Science, M313; University of Western Australia; Perth; Western Australia; 6009; Australia
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Cojocaru C, Rotaru A, Harabagiu V, Sacarescu L. Molecular structure and electronic properties of pyridylindolizine derivative containing phenyl and phenacyl groups: Comparison between semi-empirical calculations and experimental studies. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.08.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Berionni G, Branca M, Pégot B, Marrot J, Kizilian E, Goumont R. The N-Alkylation of Substituted 4-Tetrazolo[1,5-a]pyridines: Easy Access to a New Series of Electrophiles. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100595] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Aittala PJ, Cramariuc O, Hukka TI, Vasilescu M, Bandula R, Lemmetyinen H. A TDDFT Study of the Fluorescence Properties of Three Alkoxypyridylindolizine Derivatives. J Phys Chem A 2010; 114:7094-101. [DOI: 10.1021/jp9104536] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pekka J. Aittala
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101 Tampere, Finland, Department of Physics, Tampere University of Technology, P.O. Box 692, 33101 Tampere, Finland, and Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 006021 Bucharest, Romania
| | - Oana Cramariuc
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101 Tampere, Finland, Department of Physics, Tampere University of Technology, P.O. Box 692, 33101 Tampere, Finland, and Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 006021 Bucharest, Romania
| | - Terttu I. Hukka
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101 Tampere, Finland, Department of Physics, Tampere University of Technology, P.O. Box 692, 33101 Tampere, Finland, and Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 006021 Bucharest, Romania
| | - Marilena Vasilescu
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101 Tampere, Finland, Department of Physics, Tampere University of Technology, P.O. Box 692, 33101 Tampere, Finland, and Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 006021 Bucharest, Romania
| | - Rodica Bandula
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101 Tampere, Finland, Department of Physics, Tampere University of Technology, P.O. Box 692, 33101 Tampere, Finland, and Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 006021 Bucharest, Romania
| | - Helge Lemmetyinen
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101 Tampere, Finland, Department of Physics, Tampere University of Technology, P.O. Box 692, 33101 Tampere, Finland, and Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 006021 Bucharest, Romania
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