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An Efficient One-Pot Synthesis of 5-Sulfanyl-1-[2-(vinyloxy)ethyl]-1H-pyrrol-2-amines as Precursors of 1-Vinylpyrroles. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1820-6160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractSequential processing of monolithiated tertiary propargylamines with 2-(vinyloxy)ethyl isothiocyanate and t-BuOK–DMSO results in the introduction of a highly reactive 2-(vinyloxy)ethyl group at the position 1 of the pyrrole ring thus formed. In this way, a series of new 5-sulfanyl-1-[2-(vinyloxy)ethyl]-1H-pyrrol-2-amines were obtained in a yield of up to 92%. The latter in the presence of t-BuOK–DMSO system (110–120 °C, 10–15 min) eliminates vinyl alcohol to give rare-functionalized 1-vinylpyrroles, namely 5-sulfanyl-1-vinyl-1H-pyrrol-2-amines, inaccessible by the known methods.
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Klyba LV, Nedolya NA, Sanzheeva ER, Tarasova OA. Mass Spectra of New Heterocycles: XXIII. Electron Impact and Chemical Ionization Study of 5-[(Cyanomethyl)sulfanyl]- and 5-[(1,3-Dioxolan-2-ylmethyl)sulfanyl]-1H-pyrrol-2-amines. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1070428021120022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Klyba LV, Nedolya NA, Sanzheeva ER, Tarasova OA. Mass Spectra of New Heterocycles: XXII. Electron Impact and Chemical Ionization of 1-Alkyl(cycloalkyl, alkoxyalkyl)-5-[(alkyl, allyl, benzyl)sulfanyl]-1H-pyrrol-2-amines. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428021030040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Nedolya NA, Tarasova OA, Albanov AI, Trofimov BA. Synthesis and Unexpected Transformation of 5-[(1,3-Dioxolan-2-ylmethyl)sulfanyl]-1H-pyrrol-2-amine into 5-{[2-(2-Hydroxyethoxy)ethenyl]sulfanyl}-1H-pyrrol-2-amine in the Presence of a Superbase. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428021030246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Synthesis of pyrrole-ferrocene ensembles and their rearrangement into 2-(ferrocenylmethyl)-1,2-dihydro-3H-pyrrol-3-ones. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2020.121651] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kolyvanov NA, Oparina LA, Tarasova OA, Albanov AI, Gusarova NK, Trofimov BA. Pd-catalyzed rearrangement of ferrocenylalkyl vinyl ethers to the related aldehydes and ketones. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152110] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Tarasova OA, Nedolya NA, Albanov AI, Trofimov BA. 2‐Amino‐5‐(cyanomethylsulfanyl)‐1
H
‐pyrroles from Propargylamines, Isothiocyanates, and Bromoacetonitrile by One‐Pot Synthetic Protocol. ChemistrySelect 2020. [DOI: 10.1002/slct.202000577] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Olga A. Tarasova
- An Unsaturated Heteroatom Compounds Laboratory A. E. Favorsky Irkutsk Institute of Chemistry, Siberian BranchRussian Academy of Sciences 1 Favorsky Str. 664033 Irkutsk Russian Federation
| | - Nina A. Nedolya
- An Unsaturated Heteroatom Compounds Laboratory A. E. Favorsky Irkutsk Institute of Chemistry, Siberian BranchRussian Academy of Sciences 1 Favorsky Str. 664033 Irkutsk Russian Federation
| | - Alexander I. Albanov
- An Unsaturated Heteroatom Compounds Laboratory A. E. Favorsky Irkutsk Institute of Chemistry, Siberian BranchRussian Academy of Sciences 1 Favorsky Str. 664033 Irkutsk Russian Federation
| | - Boris A. Trofimov
- An Unsaturated Heteroatom Compounds Laboratory A. E. Favorsky Irkutsk Institute of Chemistry, Siberian BranchRussian Academy of Sciences 1 Favorsky Str. 664033 Irkutsk Russian Federation
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Klyba LV, Nedolya NA, Sanzheeva ER, Tarasova OA, Shagun VA. Mass Spectra of New Heterocycles: XX. Electron Impact and Chemical Ionization Mass Spectra of 5-(Prop-2-yn-1-ylsulfanyl)-1H-pyrrol-2-amines. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428019120078] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Nedolya NA, Tarasova OA, Albanov AI, Trofimov BA. A New Facet of Azatriene Reactivity: A Short Cut to 5-Amino-3-methyl-4-(1H-pyrrol-1-yl)thiophene-2-carboxylates and 5-Amino-3-methyl-4-(1H-pyrrol-1-yl)thiophene-2-carbonitriles. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800268] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nina A. Nedolya
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch; Russian Academy of Sciences; 1 Favorsky Str. 664033 Irkutsk Russian Federation
| | - Olga A. Tarasova
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch; Russian Academy of Sciences; 1 Favorsky Str. 664033 Irkutsk Russian Federation
| | - Alexander I. Albanov
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch; Russian Academy of Sciences; 1 Favorsky Str. 664033 Irkutsk Russian Federation
| | - Boris A. Trofimov
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch; Russian Academy of Sciences; 1 Favorsky Str. 664033 Irkutsk Russian Federation
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Abstract
Inter- or intramolecular hydroamination reactions are a paradigmatic example of modern sustainable organic chemistry, as they are a catalytic, 100% atom-economical, and waste-free process of fundamental simplicity in which an amine is added to an alkyne substrate. Many enamines are found in many natural and synthetic compounds possessing interesting physiological and biological activities. The development of synthetic protocols for such molecules and their transformation is a persistent research topic in pharmaceutical and organic chemistry. Hydroamination is conspicuously superior to the other accessible methods, such as the imination of ketones or the aminomercuration/demercuration of alkynes, that involve the stoichiometric use of toxic reagents. Additionally, the hydroamination of alkyne substrates has been successfully employed as a key step in synthesizing target molecules through total syntheses containing substituted indoles, pyrroles, imidazoles, and other heterocycles as core moieties. Many research groups have explored inter- or intramolecular hydroamination of alkynes for the synthesis of diversely substituted nitrogen heterocycles using expensive metal catalysts. However, in contrast to metal-catalyzed hydroamination, the base-mediated hydroamination of alkynes has not been extensively studied. Various inorganic (such as hydroxides, phosphates, and carbonates) and organic bases have been proven to be valuable reagents for achieving the hydroamination process. This method represents an attractive strategy for the construction of a broad range of nitrogen-containing compounds that prevents the formation of byproducts in the creation of a C-N linkage. The presence of a base is thought to facilitate the attack of nitrogen nucleophiles, such as indoles, pyrroles, and imidazoles, on unsaturated carbon substrates through the activation of the triple bond and thus transforming the electron-rich alkyne into an electrophile. In the past few years, we have been involved in the development of methods for the nucleophilic addition of N-heterocycles onto terminal and internal alkynes using alkali base catalysts to achieve new carbon-nitrogen bond-forming reactions. During our study, we discovered the regioselective preferential nucleophilic addition of N-heterocycles onto the haloarylalkyne over N-arylation of the aryl halide. In this Account, we summarize our latest achievements in regio-, stereo-, and chemoselective hydroamination chemistry of N-nucleophiles with alkynes using a superbasic medium to produce a broad range of highly functionalized vinyl and styryl enamines, which are valuable and versatile synthetic intermediates for the synthesis of bioactive compounds. Interestingly, the stereoselectivity of the addition products (kinetically stable Z and thermodynamically stable E isomers) was found to be dependent upon time. It is worthwhile to note that hydroaminated products formed by the addition reaction can further be utilized for the synthesis of indolo-/pyrrolo[2,1-a]isoquinolines, naphthyridines, and bisindolo/pyrrolo[2,1-a]isoquinolinesvia tandem cyclization. This chemistry is expected to find application in organic synthesis for constructing a diverse variety of fused π-conjugated compounds, enaminones, and C-C coupled products.
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Affiliation(s)
- Monika Patel
- Department of Chemistry, University of Delhi, Delhi-110007, India
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Klyba LV, Tarasova OA, Nedolya NA. Mass spectra of new heterocycles: XV. Fragmentation of 1-substituted 3-alkoxy-2-(propargylsulfanyl)- and 3-alkoxy-2-(allenylsulfanyl)-1H-pyrroles under electron impact. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2017. [DOI: 10.1134/s1070428016120101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Nedolya NA, Tarasova OA, Albanov AI, Trofimov BA. New aromatization pathway of 2,3-dihydropyridines by the action of superbase: Concurrent synthesis of 2-(methylsulfanyl)-6-[(vinyloxy)methyl]pyridine and 3-methoxy-6-methyl-2-(methylsulfanyl)pyridine. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2017. [DOI: 10.1134/s1070428017010262] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Trofimov BA, Nedolya NA, Tarasova OA, Sobenina LN, Petrova OV, Sagitova EF, Albanov AI. A short-cut to 2,7-dihydrothiopyrano[2,3-b]pyrrole. J Sulphur Chem 2015. [DOI: 10.1080/17415993.2015.1077842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Shabalin DA, Dvorko MY, Schmidt EY, Ushakov IA, Protsuk NI, Kobychev VB, Soshnikov DY, Trofimov AB, Vitkovskaya NM, Mikhaleva AI, Trofimov BA. 3H-Pyrroles from ketoximes and acetylene: synthesis, stability and quantum-chemical insight. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.03.111] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Gladow D, Reissig HU. Perfluoroalkyl-Substituted Thiophenes and Pyrroles from Donor–Acceptor Cyclopropanes and Heterocumulenes: Synthesis and Exploration of their Reactivity. J Org Chem 2014; 79:4492-502. [DOI: 10.1021/jo500534t] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Daniel Gladow
- Institut für Chemie
und Biochemie, Freie Universität Berlin, Takustrasse 3, D-14195 Berlin, Germany
| | - Hans-Ulrich Reissig
- Institut für Chemie
und Biochemie, Freie Universität Berlin, Takustrasse 3, D-14195 Berlin, Germany
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Klyba LV, Nedolya NA, Tarasova OA, Sanzheeva ER. Mass spectra of new heterocycles: XII. Main fragmentation pathways of the molecular ions of 5-methylsulfanyl-1-vinyl-1H-pyrrol-2-amines under electron impact and chemical ionization. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2014. [DOI: 10.1134/s1070428014010072] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Afonin AV, Pavlov DV, Albanov AI, Tarasova OA, Nedolya NA. Experimental and theoretical study of the intramolecular C-H···N and C-H···S hydrogen bonding effects in the 1H and 13C NMR spectra of the 2-(alkylsulfanyl)-5-amino-1-vinylpyrroles: a particular state of amine nitrogen. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2013; 51:414-423. [PMID: 23695830 DOI: 10.1002/mrc.3967] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 04/21/2013] [Accepted: 04/22/2013] [Indexed: 06/02/2023]
Abstract
In the (1)H NMR spectra of the 1-vinylpyrroles with amino- and alkylsulfanyl groups in 5 and 2 positions, an extraordinarily large difference between resonance positions of the HA and HB terminal methylene protons of the vinyl group is discovered. Also, the one-bond (1)J(C(β),H(B)) coupling constant is surprisingly greater than the (1)J(C(β),H(A)) coupling constant in pyrroles under investigation, while in all known cases, there was a reverse relationship between these coupling constants. These spectral anomalies are substantiated by quantum chemical calculations. The calculations show that the amine nitrogen lone pair is removed from the conjugation with the π-system of the pyrrole ring so that it is directed toward the HB hydrogen. These factors are favorable to the emergence of the intramolecular C-HB •••N hydrogen bonding in the s-cis(N) conformation. On the other hand, the spatial proximity of the sulfur to the HB hydrogen provides an opportunity of the intramolecular C-HB •••S hydrogen bonding in the s-cis(S) conformation. Presence of the hydrogen bond critical points as well as ring critical point for corresponding chelate ring revealed by a quantum theory of atoms in molecules (QTAIM) approach confirms the existence of the weak intramolecular C-H•••N and C-H•••S hydrogen bonding. Therefore, an unusual high-frequency shift of the HB signal and the increase in the (1)J(C(β),H(B)) coupling constant can be explained by the effects of hydrogen bonding.
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Affiliation(s)
- Andrei V Afonin
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, Favorsky St 1, 664033, Irkutsk, Russia
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Allenes in Catalytic Asymmetric Synthesis and Natural Product Syntheses. Angew Chem Int Ed Engl 2012; 51:3074-112. [DOI: 10.1002/anie.201101460] [Citation(s) in RCA: 758] [Impact Index Per Article: 63.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Indexed: 02/06/2023]
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Yu S, Ma S. Allene in katalytischer asymmetrischer Synthese und Naturstoffsynthese. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201101460] [Citation(s) in RCA: 254] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Nedolya NA, Tarasova OA, Volostnykh OG, Albanov AI, Trofimov BA. Simultaneous synthesis of 4,5-dihydro-3H-azepines and 3H-azepines, bearing alkoxy and alkylsulfanyl substituents, through metallation of 2-aza-1,3,5-trienes by t-BuOK. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.07.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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