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Agafonova AV, Funt LD, Novikov MS, Khlebnikov AF. An isoxazole strategy for the synthesis of alkyl 5-amino-4-cyano-1 H-pyrrole-2-carboxylates - versatile building blocks for assembling pyrrolo-fused heterocycles. Org Biomol Chem 2021; 19:1976-1984. [PMID: 33566047 DOI: 10.1039/d1ob00053e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A full atom-economical domino method has been developed for the preparation of alkyl 5-amino-4-cyano-1H-pyrrole-2-carboxylates by transannulation of 5-alkoxyisoxazoles with malononitrile under Fe(ii) catalysis. Alkyl 5-amino-4-cyano-1H-pyrrole-2-carboxylates are excellent building blocks for various annulation reactions, leading to new derivatives of 1H-pyrrolo[1,2-a]imidazole and pyrrolo[2,3-d]pyrimidine. The DFT calculations of mechanistic details of alkyl 5-amino-4-cyano-1H-pyrrole-2-carboxylate formation are presented.
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Affiliation(s)
- Anastasiya V Agafonova
- St Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St Petersburg, 199034, Russia.
| | - Liya D Funt
- St Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St Petersburg, 199034, Russia.
| | - Mikhail S Novikov
- St Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St Petersburg, 199034, Russia.
| | - Alexander F Khlebnikov
- St Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St Petersburg, 199034, Russia.
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2
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Kanwal S, Ann NU, Fatima S, Emwas AH, Alazmi M, Gao X, Ibrar M, Zaib Saleem RS, Chotana GA. Facile Synthesis of NH-Free 5-(Hetero)Aryl-Pyrrole-2-Carboxylates by Catalytic C-H Borylation and Suzuki Coupling. Molecules 2020; 25:molecules25092106. [PMID: 32365945 PMCID: PMC7248765 DOI: 10.3390/molecules25092106] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 04/26/2020] [Accepted: 04/29/2020] [Indexed: 11/25/2022] Open
Abstract
A convenient two-step preparation of NH-free 5-aryl-pyrrole-2-carboxylates is described. The synthetic route consists of catalytic borylation of commercially available pyrrole-2-carboxylate ester followed by Suzuki coupling without going through pyrrole N–H protection and deprotection steps. The resulting 5-aryl substituted pyrrole-2-carboxylates were synthesized in good- to excellent yields. This synthetic route can tolerate a variety of functional groups including those with acidic protons on the aryl bromide coupling partner. This methodology is also applicable for cross-coupling with heteroaryl bromides to yield pyrrole-thiophene, pyrrole-pyridine, and 2,3’-bi-pyrrole based bi-heteroaryls.
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Affiliation(s)
- Saba Kanwal
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science & Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan; (S.K.); (N.-u.-A.); (S.F.); (M.I.); (R.S.Z.S.)
| | - Noor-ul- Ann
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science & Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan; (S.K.); (N.-u.-A.); (S.F.); (M.I.); (R.S.Z.S.)
| | - Saman Fatima
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science & Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan; (S.K.); (N.-u.-A.); (S.F.); (M.I.); (R.S.Z.S.)
| | - Abdul-Hamid Emwas
- Core Labs, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia;
| | - Meshari Alazmi
- Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division, Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (M.A.); (X.G.)
- College of Computer Science and Engineering, University of Ha’il, P.O. Box 2440, Ha’il 81481, Saudi Arabia
| | - Xin Gao
- Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division, Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (M.A.); (X.G.)
| | - Maha Ibrar
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science & Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan; (S.K.); (N.-u.-A.); (S.F.); (M.I.); (R.S.Z.S.)
| | - Rahman Shah Zaib Saleem
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science & Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan; (S.K.); (N.-u.-A.); (S.F.); (M.I.); (R.S.Z.S.)
| | - Ghayoor Abbas Chotana
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science & Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan; (S.K.); (N.-u.-A.); (S.F.); (M.I.); (R.S.Z.S.)
- Correspondence: ; Tel.: +92-42-3560-8281
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Galenko EE, Linnik SA, Khoroshilova OV, Novikov MS, Khlebnikov AF. Isoxazole Strategy for the Synthesis of α-Aminopyrrole Derivatives. J Org Chem 2019; 84:11275-11285. [DOI: 10.1021/acs.joc.9b01634] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ekaterina E. Galenko
- Saint Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Stanislav A. Linnik
- Saint Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Olesya V. Khoroshilova
- Saint Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Mikhail S. Novikov
- Saint Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Alexander F. Khlebnikov
- Saint Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
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Khlebnikov AF, Novikov MS, Rostovskii NV. Advances in 2H-azirine chemistry: A seven-year update. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.03.040] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mikhailov KI, Galenko EE, Galenko AV, Novikov MS, Ivanov AY, Starova GL, Khlebnikov AF. Fe(II)-Catalyzed Isomerization of 5-Chloroisoxazoles to 2H-Azirine-2-carbonyl Chlorides as a Key Stage in the Synthesis of Pyrazole–Nitrogen Heterocycle Dyads. J Org Chem 2018; 83:3177-3187. [DOI: 10.1021/acs.joc.8b00069] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kirill I. Mikhailov
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Ekaterina E. Galenko
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Alexey V. Galenko
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Mikhail S. Novikov
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Alexander Yu. Ivanov
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Galina L. Starova
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Alexander F. Khlebnikov
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
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Ruvinskaya JO, Rostovskii NV, Filippov IP, Khlebnikov AF, Novikov MS. A novel approach to 5H-pyrazino[2,3-b]indolesviaannulation of 3-diazoindolin-2-imines with 2H-azirines or 5-alkoxyisoxazoles under Rh(ii) catalysis. Org Biomol Chem 2018; 16:38-42. [DOI: 10.1039/c7ob02637d] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The first example of rhodium carbenoid-mediated intermolecular annulation of cyclic diazo compounds with azirines and alkoxyisoxazoles is presented.
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Affiliation(s)
| | | | - Ilya P. Filippov
- St. Petersburg State University
- Institute of Chemistry
- St. Petersburg
- Russia
| | | | - Mikhail S. Novikov
- St. Petersburg State University
- Institute of Chemistry
- St. Petersburg
- Russia
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