1
|
Odin IS, Chertov AY, Grigor'eva OB, Golovanov AA. Ketone Derivatives of Propargylamines as Synthetic Equivalents of Conjugated 2,4,1-Enynones in the Synthesis of Acetylenic 2-Pyrazolines and Pyrazoles. J Org Chem 2022; 87:5916-5924. [PMID: 35394780 DOI: 10.1021/acs.joc.2c00198] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An interaction of 1,5-diaryl-3-X-pent-4-yn-1-ones (where X stands for piperidin-1-yl, morpholin-4-yl, 4-methylpiperazin-1-yl) with arylhydrazines proceeds at room temperature and results in 3-aryl-5-arylethynyl-1-phenyl-4,5-dihydro-1H-pyrazoles with up to 57-73% yields. Under similar conditions, the cyclocondensation of conjugated 2,4,1-enynones with arylhydrazine proceeds only in the presence of cyclic amines. 1,5-Diaryl-3-X-pent-4-yn-1-ones are reported as synthetic equivalents of conjugated 2,4,1-enynones in reactions with arylhydrazines. On the basis of obtained data, there are highly efficient methods developed for the synthesis of 5-arylethynyl-substituted 4,5-dihydro-1H-pyrazoles, as well as for similarly structured 1H-pyrazoles prepared by oxidation in AcOH. Presented products possess quite marked fluorescent abilities. Emission maximum wavelengths are located at 453-465 and 363-400 nm, respectively; certain compounds show extremely large Stokes shifts that may reach 91,000 cm-1.
Collapse
Affiliation(s)
- Ivan S Odin
- Togliatti State University, 14 Belorusskaya Str., 445020 Togliatti, Russia
| | - Anton Yu Chertov
- Togliatti State University, 14 Belorusskaya Str., 445020 Togliatti, Russia
| | - Olga B Grigor'eva
- Togliatti State University, 14 Belorusskaya Str., 445020 Togliatti, Russia
| | | |
Collapse
|
2
|
Itakhunov RN, Odin IS, Gusev DM, Grabovskiy SA, Gordon KV, Vologzhanina AV, Sokov SA, Sosnin IM, Golovanov AA. Cyclization of arylhydrazones of cross-conjugated enynones: synthesis of luminescent styryl-1 H-pyrazoles and propenyl-1 H-pyrazoles. Org Biomol Chem 2022; 20:8693-8713. [DOI: 10.1039/d2ob01427k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
On the basis of available ethynyl vinyl ketones and arylhydrazines, the authors have developed the two-stage synthesis method for styrylpyrazoles possessing fluorescent abilities, as well as the gram-scale synthesis method for fluorescent probes.
Collapse
Affiliation(s)
- Radik N. Itakhunov
- S. P. Korshunov Research Laboratory No. 13, Department Chemical Technology and Resource Conservation, Togliatti State University, Belorusskaya Str. 14, Togliatti, 445020, Russia
| | - Ivan S. Odin
- S. P. Korshunov Research Laboratory No. 13, Department Chemical Technology and Resource Conservation, Togliatti State University, Belorusskaya Str. 14, Togliatti, 445020, Russia
| | - Dmitry M. Gusev
- S. P. Korshunov Research Laboratory No. 13, Department Chemical Technology and Resource Conservation, Togliatti State University, Belorusskaya Str. 14, Togliatti, 445020, Russia
| | - Stanislav A. Grabovskiy
- S. P. Korshunov Research Laboratory No. 13, Department Chemical Technology and Resource Conservation, Togliatti State University, Belorusskaya Str. 14, Togliatti, 445020, Russia
- Laboratory of Chemical Kinetics, Ufa Institute of Chemistry, UFRS of the Russian Academy of Science, October Av. 71, Ufa, 450054, Russia
| | - Kareem V. Gordon
- S. P. Korshunov Research Laboratory No. 13, Department Chemical Technology and Resource Conservation, Togliatti State University, Belorusskaya Str. 14, Togliatti, 445020, Russia
| | - Anna V. Vologzhanina
- Laboratory for X-Ray Diffraction Studies – X-Ray Structural Centre (XRSC), A. N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Science, 28 Vavilova Str., Moscow, 119334, Russia
| | - Sergey A. Sokov
- S. P. Korshunov Research Laboratory No. 13, Department Chemical Technology and Resource Conservation, Togliatti State University, Belorusskaya Str. 14, Togliatti, 445020, Russia
| | - Ilya M. Sosnin
- S. P. Korshunov Research Laboratory No. 13, Department Chemical Technology and Resource Conservation, Togliatti State University, Belorusskaya Str. 14, Togliatti, 445020, Russia
| | - Alexander A. Golovanov
- S. P. Korshunov Research Laboratory No. 13, Department Chemical Technology and Resource Conservation, Togliatti State University, Belorusskaya Str. 14, Togliatti, 445020, Russia
| |
Collapse
|
3
|
Golovanov AA, Odin IS, Gusev DM, Vologzhanina AV, Sosnin IM, Grabovskiy SA. Reactivity of Cross-Conjugated Enynones in Cyclocondensations with Hydrazines: Synthesis of Pyrazoles and Pyrazolines. J Org Chem 2021; 86:7229-7241. [PMID: 33955756 DOI: 10.1021/acs.joc.1c00569] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The cyclocondensation of cross-conjugated enynones, dienynones, and trienynones (easily available due to low-cost starting compounds) with arylhydrazines leads to the regioselective synthesis of pyrazole derivatives (dihetaryl-substituted ethens, buta-1,3-diens, and hexa-1,3,5-triens) or results in 4,5-dihydro-1H-pyrazoles in good yield. The reaction path is controlled by the character of the substituent in enynone: the pyrazoles are obtained from the reaction of substrates that contain five-membered heteroaromatic substituents with arylhydrazines, and the 4,5-dihydro-1H-pyrazoles are obtained from the reaction of 1,5-diphenylpent-1-en-4-yn-3-one with arylhydrazines consistently. Despite the presence of a substituent, cyclocondensation of 2-hydrazinylpyridine with all of examined cross-conjugated enynones leads to the formation of pyrazoles. The reaction does not require special conditions (temperature, catalyst, inert atmosphere). The cyclocondensation pathways are determined by the electronic effect of an electron-rich five-membered heteroaromatic ring in the substrate. The synthesis allows use of various substituents and functional groups in enynone and hydrazine. The present method features high yields and simplicity of the product purification. The obtained pyrazoles possess fluorescent properties with a quantum yield up to 31%.
Collapse
Affiliation(s)
| | - Ivan S Odin
- Togliatti State University, 14 Belorusskaya Str., 445020 Togliatti, Russia
| | - Dmitry M Gusev
- Togliatti State University, 14 Belorusskaya Str., 445020 Togliatti, Russia
| | - Anna V Vologzhanina
- A. N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Science, 28 Vavilova Str., 119991 Moscow, Russia
| | - Ilya M Sosnin
- Togliatti State University, 14 Belorusskaya Str., 445020 Togliatti, Russia
| | - Stanislav A Grabovskiy
- Ufa Institute of Chemistry, UFRS of the Russian Academy of Science, 71 October Av., 450054 Ufa, Russia
| |
Collapse
|
4
|
Pankova AS. Electrophile-Induced Reactions of Cross-Conjugated Enynones in the Synthesis of Heterocycles. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02739-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
5
|
Golovanov AA, Gusev DM, Odin IS, Zlotskii SS. Conjugated 2,4,1- and 1,4,3-enynones as polycentricelectrophiles in synthesis of heterocyclic compounds. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02462-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
6
|
Golubev P, Karpova EA, Pankova AS, Sorokina M, Kuznetsov MA. Regioselective Synthesis of 7-(Trimethylsilylethynyl)pyrazolo[1,5-a]pyrimidines via Reaction of Pyrazolamines with Enynones. J Org Chem 2016; 81:11268-11275. [PMID: 27749057 DOI: 10.1021/acs.joc.6b02217] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Condensation of enynones readily available from cheap starting material with pyrazolamines provides easy access to fluorescent 7-(trimethylsilylethynyl)pyrazolo[1,5-a]pyrimidines. The reaction is straightforward, does not require the use of any additional reagents or catalysts, and can be performed without inert atmosphere. Various substituents and functional groups in both enynone and pyrazolamine are tolerated. The presented method features full regioselectivity, high isolated yields, and simplicity of both setup and product purification. Fluorescent properties of the obtained pyrazolopyrimidines were studied.
Collapse
Affiliation(s)
- Pavel Golubev
- Institute of Chemistry, Saint Petersburg State University , Universitetsky pr. 26, 198504 Saint Petersburg, Russia
| | - Ekaterina A Karpova
- Institute of Chemistry, Saint Petersburg State University , Universitetsky pr. 26, 198504 Saint Petersburg, Russia
| | - Alena S Pankova
- Institute of Chemistry, Saint Petersburg State University , Universitetsky pr. 26, 198504 Saint Petersburg, Russia
| | - Mariia Sorokina
- Institute of Chemistry, Saint Petersburg State University , Universitetsky pr. 26, 198504 Saint Petersburg, Russia
| | - Mikhail A Kuznetsov
- Institute of Chemistry, Saint Petersburg State University , Universitetsky pr. 26, 198504 Saint Petersburg, Russia
| |
Collapse
|
7
|
Karabiyikoglu S, Zora M. Facile synthesis of alkynyl-, aryl- and ferrocenyl-substituted pyrazoles via Sonogashira and Suzuki-Miyaura approaches. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3516] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Sedef Karabiyikoglu
- Department of Chemistry; Middle East Technical University; 06800 Ankara Turkey
| | - Metin Zora
- Department of Chemistry; Middle East Technical University; 06800 Ankara Turkey
| |
Collapse
|
8
|
Golubev PR, Pankova AS, Kuznetsov MA. Regioselective Transition-Metal-Free Synthesis of 2-(Trimethylsilylmethylene)pyrrol-3-ones by Thermal Cyclization of Acetylenic Enamines. J Org Chem 2015; 80:4545-52. [DOI: 10.1021/acs.joc.5b00398] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pavel R. Golubev
- Institute of Chemistry, Saint Petersburg State University, Universitetsky
pr. 26, 198504 Saint
Petersburg, Russia
| | - Alena S. Pankova
- Institute of Chemistry, Saint Petersburg State University, Universitetsky
pr. 26, 198504 Saint
Petersburg, Russia
| | - Mikhail A. Kuznetsov
- Institute of Chemistry, Saint Petersburg State University, Universitetsky
pr. 26, 198504 Saint
Petersburg, Russia
| |
Collapse
|
9
|
Golubev PR, Pankova AS, Kuznetsov MA. Transition-Metal-Free Approach to 4-Ethynylpyrimidines via Alkenynones. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402045] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
10
|
|