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Obydennik AY, Titov AA, Listratova AV, Borisova TN, Sokolova IL, Rybakov VB, Van der Eycken EV, Voskressensky LG, Varlamov AV. Divergent and Nucleophile-Assisted Rearrangement in the Construction of Pyrrolo[2,1-b][3]benzazepine and Pyrido[2,1-a]isoquinoline Scaffolds. Chemistry 2024; 30:e202302919. [PMID: 37864779 DOI: 10.1002/chem.202302919] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/12/2023] [Accepted: 10/20/2023] [Indexed: 10/23/2023]
Abstract
Under microwave (MW) irradiation at 150 °C in toluene and in the presence of nucleophiles (DMAP, triphenylphosphine and tetrahydrothiophene) 1-substituted 1-ethynyl-2-vinyldi- and tetrahydroisoquinolines undergo [3,3]-sigmatropic rearrangement providing pyrrolo[2,1-b][3]benzazepines in good yields. The replacement of toluene with acetonitrile directs the rearrangement towards the formation of 7,11b-dihydro-6H-pyrido[2,1-a]isoquinolines.
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Affiliation(s)
- Arina Y Obydennik
- Organic Chemistry Department, Science Faculty, Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
| | - Alexander A Titov
- Organic Chemistry Department, Science Faculty, Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
| | - Anna V Listratova
- Organic Chemistry Department, Science Faculty, Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
| | - Tatiana N Borisova
- Organic Chemistry Department, Science Faculty, Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
| | - Irina L Sokolova
- Organic Chemistry Department, Science Faculty, Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
| | - Victor B Rybakov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, Moscow, 119991, Russian Federation
| | - Erik V Van der Eycken
- Organic Chemistry Department, Science Faculty, Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, Leuven, 3001, Belgium
| | - Leonid G Voskressensky
- Organic Chemistry Department, Science Faculty, Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
| | - Alexey V Varlamov
- Organic Chemistry Department, Science Faculty, Рeoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation
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2
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Badmus F, Thombal RS, Philkhana SC, Malone JA, Bailey CE, Armendariz-Gonzalez E, Mureka EW, Locicero CM, Fronczek FR, Kartika R. Directing the Stereoselectivity of the Claisen Rearrangement to Form Cyclic Ketones with Full Substitution at the α-Positions. Org Lett 2023; 25:7622-7627. [PMID: 37830497 PMCID: PMC10616857 DOI: 10.1021/acs.orglett.3c02752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Indexed: 10/14/2023]
Abstract
We report an enantioselective synthesis of cyclic ketones with full substitutions at the α-positions in a highly diastereoselective manner. Our method is achieved by subjecting substrate motifs in 2-allyloxyenones to chiral organomagnesium reagents, which trigger the Claisen rearrangement upon direct 1,2-carbonyl addition. The observed diastereoselectivity of the allyl migration is proposed to originate from the intramolecular chelation of the magnesium alkoxide to the allyloxy moiety.
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Affiliation(s)
- Fatimat
O. Badmus
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton
Rouge, Louisiana 70803, United States
| | | | | | - Joshua A. Malone
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton
Rouge, Louisiana 70803, United States
| | - Christian E. Bailey
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton
Rouge, Louisiana 70803, United States
| | | | - Edward W. Mureka
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton
Rouge, Louisiana 70803, United States
| | - Cale M. Locicero
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton
Rouge, Louisiana 70803, United States
| | - Frank R. Fronczek
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton
Rouge, Louisiana 70803, United States
| | - Rendy Kartika
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton
Rouge, Louisiana 70803, United States
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3
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Eronen A, Nieger M, Kajander TA, Repo T. Stereospecific Synthesis of Cyclohexenone Acids by [3,3]-Sigmatropic Rearrangement Route. J Org Chem 2023; 88:12914-12923. [PMID: 37656942 PMCID: PMC10507681 DOI: 10.1021/acs.joc.3c00757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Indexed: 09/03/2023]
Abstract
Herein we report a modular synthetic method for the preparation of diaryl-substituted cyclohexenone acids starting from phenyl pyruvate and suitable enones. When the reaction is carried out in alkaline tert-butanol or toluene solutions in microwave-assisted conditions mainly anti configuration products are obtained with up to 86% isolated yield. However, when the reaction is carried out in alkaline water, a mixture of products with anti and syn conformations is obtained with up to 98% overall isolated yield. Mechanistically the product with anti conformation forms by a hemiketal-oxy-Cope type [3,3]-sigmatropic rearrangement-intramolecular aldol condensation route and syn product by an intermolecular aldol condensation-electrocyclization (disrotatory type) route.
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Affiliation(s)
- Aleksi Eronen
- Department
of Chemistry, University of Helsinki, PO Box 55 (A. I. Virtasen aukio
1), 00014, Helsinki, Finland
| | - Martin Nieger
- Department
of Chemistry, University of Helsinki, PO Box 55 (A. I. Virtasen aukio
1), 00014, Helsinki, Finland
| | - Tommi A. Kajander
- Institute
of Biotechnology, University of Helsinki, PO Box 65 (Viikinkaari 1), 00014, Helsinki, Finland
| | - Timo Repo
- Department
of Chemistry, University of Helsinki, PO Box 55 (A. I. Virtasen aukio
1), 00014, Helsinki, Finland
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4
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Volkov PA, Khrapova KO, Bidusenko IA, Telezhkin AA, Schmidt EY, Albanov AI, Trofimov BA. Chemoselective cross-coupling of terminal propargylamines with (het)aroyl chlorides: synthesis of β-aminoacetylenic ketones bearing aromatic and heteroaromatic substituents. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3558-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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5
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Yamashkin SA, Stepanenko IS. Synthesis and antimicrobial activity of N-(indol-5-yl)trifluoroacetamides and indol-5-ylaminium trifluoroacetates substituted in the pyrrole ring. Russ Chem Bull 2022; 71:1043-1049. [PMID: 35615061 PMCID: PMC9123606 DOI: 10.1007/s11172-022-3506-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 01/10/2022] [Accepted: 02/09/2022] [Indexed: 10/24/2022]
Abstract
Based on a series of 1H-indol-5-ylamines substituted in the pyrrole ring, the corresponding N-(indol-5-yl)trifluoroacetamides and indol-5-ylaminium trifluoroacetates were prepared. An in silico study showed a wide range of their biological activity, including antimicrobial, antiviral, antiprotozoal, anthelmintic, and antifungal effects. The results of in silico and in vitro screening for antimicrobial activity correlate with each other. All compounds are capable of inhibiting the growth of the tested microorganism strains. The dependence of minimum inhibitory concentrations on the nature of the substituents at the benzene and pyrrole rings of the indole system was revealed.
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Affiliation(s)
- S. A. Yamashkin
- Evseviev Mordovian State Pedagogical University, 11a ul. Studencheskaya, 430007 Saranks, Russian Federation
| | - I. S. Stepanenko
- National Research Mordovia State University, 68 ul. Bolshevitskaya, 430005 Saransk, Russian Federation
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6
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Solvent-free and transition metal catalyst-free synthesis of indolo[1,2-f]phenanthridine from 6-chlorophenanthridine. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3436-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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7
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Tayama E, Shimizu G, Nakao R. Base-induced Sommelet–Hauser rearrangement of N-(pyridinylmethyl) tetraalkylammonium salts. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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