1
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Bao M, Carriola DVN, Arman H, Doyle MP. HNTf 2-Catalyzed Formal [3 + 2] Cycloaddition of Vinyldiazoacetates to Indole-Substituted Diazo Compounds and Their Conversion to Carbazoles. Org Lett 2024. [PMID: 38796778 DOI: 10.1021/acs.orglett.4c01628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Triflimide catalysis of the [3 + 2]-cycloaddition of 3-indolymethanols with vinyldiazoacetates provides general access to β-tetrahydrocyclopenta[b]indol-substituted α-diazoesters. Initiated by addition of the in situ generated vinylogous iminium electrophile from 3-indolymethanol to the vinylogous position of the vinyldiazo compound and completed by intramolecular cyclization from the vinyldiazonium ion intermediate, this transformation occurs in good yields and excellent diastereoselectivity with a broad substrate scope under mild conditions. The resulting α-diazoesters undergo Rh2(OAc)4-catalyzed substrate-dependent 1,2-migration to form multisubstituted carbazoles in high yields.
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Affiliation(s)
- Ming Bao
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Diana Victoria Navarrete Carriola
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710 Reynosa, México
| | - Hadi Arman
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Michael P Doyle
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
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2
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Tokushige K, Abe T. On Demand Synthesis of C3-N1' Bisindoles by a Formal Umpolung Strategy: First Total Synthesis of (±)-Rivularin A. Chemistry 2024; 30:e202302963. [PMID: 37988219 DOI: 10.1002/chem.202302963] [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: 09/12/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 11/23/2023]
Abstract
In this work, a straightforward synthesis of C3-N1' bisindolines is achieved by a formal umpolung strategy. The protocols were tolerant of a wide variety of substituents on the indole and indoline ring. In addition, the C3-N1' bisindolines could be converted to C3-N1' indole-indolines and C3-N1'-bisindoles. Also, we have successfully synthesized (±)-rivularin A through a biomimetic late-stage tribromination as a key step.
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Affiliation(s)
- Keisuke Tokushige
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama, 7008530, Japan
| | - Takumi Abe
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama, 7008530, Japan
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3
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Kumar MP, G M, Amaladass P, Manikandan C, Dhayalan V. Recent synthetic strategies for the construction of functionalized carbazoles and their heterocyclic motifs enabled by Lewis acids. RSC Adv 2023; 13:32596-32626. [PMID: 37936643 PMCID: PMC10626344 DOI: 10.1039/d3ra06396h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 10/25/2023] [Indexed: 11/09/2023] Open
Abstract
This article demonstrates recent innovative cascade annulation methods for preparing functionalized carbazoles and their related polyaromatic heterocyclic compounds enabled by Lewis acid catalysts. Highly substituted carbazole scaffolds were synthesized via Lewis acid mediated Friedel-Crafts arylation, electrocyclization, intramolecular cyclization, cycloaddition, C-N bond-formations, aromatization and cascade domino reactions, metal-catalyzed, iodine catalyzed reactions and multi-component reactions. This review article mainly focuses on Lewis acid-mediated recent synthetic methods to access a variety of electron-rich and electron-poor functional groups substituted carbazole frameworks in one-pot reactions. Polyaromatic carbazole and their related nitrogen-based heterocyclic compounds were found in several synthetic applications in pharma industries, energy devices, and materials sciences. Moreover, the review paper briefly summarised new synthetic strategies of carbazole preparation approaches will assist academic and pharma industries in identifying innovative protocols for producing poly-functionalized carbazoles and related highly complex heterocyclic compounds and discovering active pharmaceutical drugs or carbazole-based alkaloids and natural products.
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Affiliation(s)
- Marappan Pradeep Kumar
- Department of Chemistry, National Institute of Technology Puducherry Karaikal-609609 Union Territory Puducherry India https://vasudeva49.wixsite.com/catalysislab
| | - Mahantesh G
- Department of Chemistry, National Institute of Technology Puducherry Karaikal-609609 Union Territory Puducherry India https://vasudeva49.wixsite.com/catalysislab
| | - P Amaladass
- Department of Chemistry, Madanapalle Institute of Technology & Science Madanapalle 517325 Andhra Pradesh India
| | - Chitrarasu Manikandan
- Department of Chemistry, National Institute of Technology Puducherry Karaikal-609609 Union Territory Puducherry India https://vasudeva49.wixsite.com/catalysislab
| | - Vasudevan Dhayalan
- Department of Chemistry, National Institute of Technology Puducherry Karaikal-609609 Union Territory Puducherry India https://vasudeva49.wixsite.com/catalysislab
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4
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Hazra A, Kanji T, Banerjee P. Merging Two Strained Carbocycles: Lewis Acid Catalyzed Remote Site-Selective Friedel-Crafts Alkylation of in Situ Generated β-Naphthol. J Org Chem 2023; 88:960-971. [PMID: 36578165 DOI: 10.1021/acs.joc.2c02378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Lewis acid catalyzed tandem activation of the two smallest carbocycles, 3-ethoxy cyclobutanones, and donor-acceptor cyclopropanes has been demonstrated. The diphenyl-substituted 3-ethoxy cyclobutanone rearranges itself by intramolecular cyclization for the in situ generation of 1-phenyl 2-naphthol, which further undergoes remote site-selective Friedel-Crafts alkylation with donor-acceptor cyclopropane to synthesize a series of γ-naphthyl butyric acid derivatives. Further control experiments for mechanistic investigations and synthetic applications have also been carried out.
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Affiliation(s)
- Arijit Hazra
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Tanmay Kanji
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Prabal Banerjee
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
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5
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Bao M, Lopez K, Gurung R, Arman H, Doyle MP. Stereoretentive Catalytic [3+2]-Cycloaddition/Rearrangement/Decarboxylation Reactions of Indoles with Non-Racemic Donor–Acceptor Cyclopropanes. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Ming Bao
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, Texas 78249, United States
| | - Karlos Lopez
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, Texas 78249, United States
| | - Raj Gurung
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, Texas 78249, United States
| | - Hadi Arman
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, Texas 78249, United States
| | - Michael P. Doyle
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, Texas 78249, United States
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6
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Kumar P, Kaur N, Kumar R, Banerjee P. α ,β-Unsaturated Carbonyls for One-Pot Transition-Metal-Free Access to 3,6-Dihydro-2 H-pyrans. J Org Chem 2022; 87:7167-7178. [PMID: 35579030 DOI: 10.1021/acs.joc.2c00379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient protocol has been developed for accessing mono-, di-, and trisubstituted 3,6-dihydro-2H-pyran derivatives by simply subjecting α,β-unsaturated carbonyls to the carefully optimized Corey-Chaykovsky reaction conditions. The strategy provides selectively substituted dihydropyran derivatives in good to excellent yields with a broad substrate scope under very mild reaction conditions. Easy transformation of the final 3,6-dihydro-2H-pyran to the valued 5,6-dihydro-2H-pyran-2-one and tetrahydro-2H-pyran derivatives expanded the scope of this methodology to diverse oxacycles. Further, the developed strategy also found application in a two-step route to racemic goniothalamin, which is widely studied for its cytotoxic behavior.
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Affiliation(s)
- Pankaj Kumar
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Navpreet Kaur
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Rakesh Kumar
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Prabal Banerjee
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
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7
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Saha D, Maajid Taily I, Banerjee P. Electricity Driven 1,3‐Oxohydroxylation of Donor‐Acceptor Cyclopropanes: a Mild and Straightforward Access to β‐Hydroxy Ketones. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101022] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Debarshi Saha
- Department of Chemistry Indian Institute of Technology Ropar Rupnagar Punjab 140001
| | - Irshad Maajid Taily
- Department of Chemistry Indian Institute of Technology Ropar Rupnagar Punjab 140001
| | - Prabal Banerjee
- Department of Chemistry Indian Institute of Technology Ropar Rupnagar Punjab 140001
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8
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Ghosh K, Das S. Recent advances in ring-opening of donor acceptor cyclopropanes using C-nucleophiles. Org Biomol Chem 2021; 19:965-982. [PMID: 33471020 DOI: 10.1039/d0ob02437f] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Ring-opening transformations of donor-acceptor cyclopropanes (DAC) with carbon-centered nucleophiles is a simple, straight-forward approach to 1,3-bifunctional compounds that has witnessed remarkable progress over the past several years. To date, different reactivity patterns of DACs have been successfully exploited in racemic/stereoselective syntheses of various acyclic compounds or carbocycles with an impressive structural diversity. The thriving strategies have been successfully utilized in multistep synthesis of complex target molecules. Herein, the recent advances (2015-present) in the ring-opening of DAC involving electron rich arenes and indoles, active methylene compounds, various dipolarophiles, organoborates/boronates, vinyl ethers etc. following Friedel-Crafts alkylation, annulation/formal cycloaddition reaction, organocatalytic reaction, Nazarov cyclisation etc. are presented.
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Affiliation(s)
- Koena Ghosh
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata 700 073, India.
| | - Subhomoy Das
- Department of Chemistry, Bar Ilan University, Ramat Gan 5290002, Israel
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9
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Ahlburg NL, Freese T, Kolb S, Mummel S, Schmidt A, Werz DB. Functionalization of Sydnones with Donor‐Acceptor Cyclopropanes, Cyclobutanes, and Michael Acceptors. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100070] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nils L. Ahlburg
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Tyll Freese
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Simon Kolb
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Sebastian Mummel
- Clausthal University of Technology Institute of Organic Chemistry Leibnizstraße 6 38678 Clausthal-Zellerfeld Germany
| | - Andreas Schmidt
- Clausthal University of Technology Institute of Organic Chemistry Leibnizstraße 6 38678 Clausthal-Zellerfeld Germany
| | - Daniel B. Werz
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
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10
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Varshnaya RK, Singh P, Kaur N, Banerjee P. Cascade intramolecular rearrangement/cycloaddition of nitrocyclopropane carboxylates with alkynes/alkenes: access to uncommon bi(hetero)cyclic systems. Org Chem Front 2021. [DOI: 10.1039/d0qo01535k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A straightforward approach for the one-pot synthesis of fused bi(hetero)cyclic systems via cascade intramolecular rearrangement/cycloaddition reaction of nitrocyclopropane carboxylates with substituted alkynes/alkenes has been demonstrated.
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Affiliation(s)
| | - Priyanka Singh
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
| | - Navpreet Kaur
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
| | - Prabal Banerjee
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
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11
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Chaudhari TY, Tandon V. Recent approaches to the synthesis of tetrahydrocarbazoles. Org Biomol Chem 2021; 19:1926-1939. [DOI: 10.1039/d0ob02274h] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The tetrahydrocarbazole (THC) motif is ubiquitous in natural products and biologically active compounds.
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Affiliation(s)
| | - Vibha Tandon
- Special Centre for Molecular Medicine
- Jawaharlal Nehru University
- New Delhi 110067
- India
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12
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Banerjee A, Kundu S, Bhattacharyya A, Sahu S, Maji MS. Benzannulation strategies for the synthesis of carbazoles, indolocarbazoles, benzocarbazoles, and carbolines. Org Chem Front 2021. [DOI: 10.1039/d1qo00092f] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review presents a critical and authoritative analysis of several exciting benzannulation approaches developed in the past decade for the construction of carbazoles, indolocarbazoles, benzocarbazoles, and carbolines.
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Affiliation(s)
- Ankush Banerjee
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Samrat Kundu
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Arya Bhattacharyya
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Samrat Sahu
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Modhu Sudan Maji
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
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13
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Azizollahi H, García-López JA. Recent Advances on Synthetic Methodology Merging C-H Functionalization and C-C Cleavage. Molecules 2020; 25:E5900. [PMID: 33322116 PMCID: PMC7764206 DOI: 10.3390/molecules25245900] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 02/08/2023] Open
Abstract
The functionalization of C-H bonds has become a major thread of research in organic synthesis that can be assessed from different angles, for instance depending on the type of catalyst employed or the overall transformation that is carried out. This review compiles recent progress in synthetic methodology that merges the functionalization of C-H bonds along with the cleavage of C-C bonds, either in intra- or intermolecular fashion. The manuscript is organized in two main sections according to the type of substrate in which the cleavage of the C-C bond takes place, basically attending to the scission of strained or unstrained C-C bonds. Furthermore, the related research works have been grouped on the basis of the mechanistic aspects of the different transformations that are carried out, i.e.,: (a) classic transition metal catalysis where organometallic intermediates are involved; (b) processes occurring via radical intermediates generated through the use of radical initiators or photochemically; and (c) reactions that are catalyzed or mediated by suitable Lewis or Brønsted acid or bases, where molecular rearrangements take place. Thus, throughout the review a wide range of synthetic approaches show that the combination of C-H and C-C cleavage in single synthetic operations can serve as a platform to achieve complex molecular skeletons in a straightforward manner, among them interesting carbo- and heterocyclic scaffolds.
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Affiliation(s)
- Hamid Azizollahi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 91775-1436, Iran
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14
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Ahlburg NL, Jones PG, Werz DB. cis-Selective, Enantiospecific Addition of Donor-Acceptor Cyclopropanes to Activated Alkenes: An Iodination/Michael-Cyclization Cascade. Org Lett 2020; 22:6404-6408. [PMID: 32806195 DOI: 10.1021/acs.orglett.0c02210] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
We present a versatile method for the enantiospecific, cis-diastereoselective intermolecular and intramolecular cycloaddition of donor-acceptor cyclopropanes to electron-poor alkenes with cyclic acceptor groups to afford highly substituted spirocyclopentanes in good to excellent yields. The reaction can be applied to biologically interesting scaffolds, including barbiturates and isoxazolones. Mechanistic investigations were undertaken to explain the unusual diastereoselectivity and enantiospecificity; these suggest an iodination/Michael-cyclization cascade.
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15
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Kumar P, Kumar R, Banerjee P. Accessing Dihydro-1,2-oxazine via Cloke–Wilson-Type Annulation of Cyclopropyl Carbonyls: Application toward the Diastereoselective Synthesis of Pyrrolo[1,2-b][1,2]oxazine. J Org Chem 2020; 85:6535-6550. [DOI: 10.1021/acs.joc.0c00531] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Pankaj Kumar
- Department of Chemistry, Indian Institute of Technology Ropar, Nangal Road, Rupnagar, Punjab 140001, India
| | - Rakesh Kumar
- Department of Chemistry, Indian Institute of Technology Ropar, Nangal Road, Rupnagar, Punjab 140001, India
| | - Prabal Banerjee
- Department of Chemistry, Indian Institute of Technology Ropar, Nangal Road, Rupnagar, Punjab 140001, India
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16
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Lücht A, Kreft A, Jones PG, Werz DB. Ketenedithioacetals as Surrogates for the Formal Insertion of Ketenes into Donor–Acceptor Cyclopropanes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000233] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Alexander Lücht
- Institute of Organic Chemistry Technische Universität Braunschweig Hagenring 30 38106 Braunschweig Germany
| | - Alexander Kreft
- Institute of Organic Chemistry Technische Universität Braunschweig Hagenring 30 38106 Braunschweig Germany
| | - Peter G. Jones
- Institute of Inorganic and Analytical Chemistry Technische Universität Braunschweig Hagenring 30 38106 Braunschweig Germany
| | - Daniel B. Werz
- Institute of Organic Chemistry Technische Universität Braunschweig Hagenring 30 38106 Braunschweig Germany
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17
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Singh P, Varshnaya RK, Dey R, Banerjee P. Donor–Acceptor Cyclopropanes as an Expedient Building Block Towards the Construction of Nitrogen‐Containing Molecules: An Update. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901332] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Priyanka Singh
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar, Punjab 140001 India
| | - Rohit Kumar Varshnaya
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar, Punjab 140001 India
| | - Raghunath Dey
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar, Punjab 140001 India
| | - Prabal Banerjee
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar, Punjab 140001 India
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18
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Petrini M. New Perspectives in the Indole Ring Functionalization using 2‐Indolylmethanols. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901245] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Marino Petrini
- School of Science and TechnologyChemistry Division, Università di Camerino via S. Agostino 1 62032 Camerino Italy
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19
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Wu Y, Li M, Jin L, Zhao X. Mechanism of Phosphine-Catalyzed Novel Rearrangement of Vinylcyclopropylketone to Cycloheptenone: A DFT Study. ACS OMEGA 2020; 5:2957-2966. [PMID: 32095718 PMCID: PMC7034002 DOI: 10.1021/acsomega.9b03902] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 01/27/2020] [Indexed: 06/10/2023]
Abstract
The title reaction is theoretically investigated in detail using density functional theory. Three possible routes starting from keto- or enol-type vinylcyclopropylketone are considered in this work. Results indicate that phosphine catalyst would first attack at the three-membered ring (C3 position) rather than the terminal of alkene (C1 position) in vinylcyclopropylketone. It is found that the two-stage mechanism would be responsible for the title reaction. The first stage is the SN2-type ring-opening of the keto-type vinylcyclopropylketone with phosphine catalyst. After the proton-transfer tautomerisms in the zwitterionic intermediates, the second stage is associated with the 7-endo-trig SN2'-type ring closure of keto- or enol-type zwitterions to furnish seven-membered cyclic products and recover the catalyst. Moreover, it turns out that 7-endo-trig SN2'-type ring closure would be highly asynchronous and could be well described as an addition/elimination process where the ring closure already finishes before the cleavage of the C-P bond. Computational results provide a deep insight into experimental observations.
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Affiliation(s)
- Yong Wu
- Department
of Chemistry and Institute for Chemical Physics, School of Science, Xi’an Jiaotong University, Xi’an 710049, China
| | - Mingzhen Li
- Department
of Chemistry and Institute for Chemical Physics, School of Science, Xi’an Jiaotong University, Xi’an 710049, China
| | - Lu Jin
- College
of Chemical Engineering, Xinjiang Agricultural
University, Urumchi 830025, China
| | - Xiang Zhao
- Department
of Chemistry and Institute for Chemical Physics, School of Science, Xi’an Jiaotong University, Xi’an 710049, China
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20
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Chang F, Shen B, Wang S, Lin L, Feng X. Lewis acid catalysed asymmetric cascade reaction of cyclopropyl ketones: concise synthesis of pyrrolobenzothiazoles. Chem Commun (Camb) 2020; 56:13429-13432. [DOI: 10.1039/d0cc05667g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A concise method to synthesize pyrrolobenzothiazoles via a cascade reaction of cyclopropyl ketones was developed by using a chiral N,N′-dioxide-scandium(iii) complex catalyst.
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Affiliation(s)
- Fenzhen Chang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Bin Shen
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Sijing Wang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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21
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Taily IM, Saha D, Banerjee P. [3+3] Annulation via Ring Opening/Cyclization of Donor-Acceptor Cyclopropanes with (Un)symmetrical Ureas: A Quick Access to Highly Functionalized Tetrahydropyrimidinones. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901400] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Irshad Maajid Taily
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road 140001 Rupnagar Punjab India
| | - Debarshi Saha
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road 140001 Rupnagar Punjab India
| | - Prabal Banerjee
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road 140001 Rupnagar Punjab India
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22
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Augustin AU, Jones PG, Werz DB. Ring-Opening 1,3-Aminochalcogenation of Donor-Acceptor Cyclopropanes: A Three-Component Approach. Chemistry 2019; 25:11620-11624. [PMID: 31282001 PMCID: PMC6771889 DOI: 10.1002/chem.201902160] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/28/2019] [Indexed: 12/21/2022]
Abstract
A 1,3-aminothiolation was realized by reacting 2-substituted cyclopropane 1,1-dicarboxylates with sulfonamides and N-(arylthio)succinimides. Under Sn(OTf)2 catalysis the transformation proceeded smoothly to the corresponding ring-opened products bearing the sulfonamide in the 1-position next to the donor and the arylthio residue in the 3-position next to the acceptor. The procedure was extended to the corresponding selenium analogues by employing N-(phenylseleno)succinimides as an electrophilic selenium source.
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Affiliation(s)
- André U. Augustin
- Institute of Organic ChemistryTechnische Universität BraunschweigHagenring 3038106BraunschweigGermany
| | - Peter G. Jones
- Institute of Inorganic and Analytical ChemistryTechnische Universität BraunschweigHagenring 3038106BraunschweigGermany
| | - Daniel B. Werz
- Institute of Organic ChemistryTechnische Universität BraunschweigHagenring 3038106BraunschweigGermany
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23
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Dhote PS, Ramana CV. One-Pot Au[III]-/Lewis Acid Catalyzed Cycloisomerization of Nitroalkynes and [3 + 3]Cycloaddition with Donor–Acceptor Cyclopropanes. Org Lett 2019; 21:6221-6224. [DOI: 10.1021/acs.orglett.9b02035] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pawan S. Dhote
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110002, India
| | - Chepuri V. Ramana
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110002, India
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24
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Okabe A, Harada S, Takeda T, Nishida A. One-Pot Synthesis of Cycloocta[b
]indole Through Formal [5+3] Cycloaddition Using Donor-Acceptor Cyclopropanes. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900610] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Akito Okabe
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1 Inohana, Chuo-ku 260-8675 Chiba Japan
| | - Shinji Harada
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1 Inohana, Chuo-ku 260-8675 Chiba Japan
- Molecular Chirality Research Center; Chiba University; 1-33 Yayoi-cho, Inage-ku 263-8522 Chiba Japan
| | - Takuya Takeda
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1 Inohana, Chuo-ku 260-8675 Chiba Japan
| | - Atsushi Nishida
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1 Inohana, Chuo-ku 260-8675 Chiba Japan
- Molecular Chirality Research Center; Chiba University; 1-33 Yayoi-cho, Inage-ku 263-8522 Chiba Japan
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25
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Nambu H, Onuki Y, Ono N, Tsuge K, Yakura T. Ring-opening cyclization of spirocyclopropanes with stabilized sulfonium ylides for the construction of a chromane skeleton. Chem Commun (Camb) 2019; 55:6539-6542. [PMID: 31106310 DOI: 10.1039/c9cc03023a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Regioselective ring-opening cyclization of cyclohexane-1,3-dione-2-spirocyclopropanes with stabilized sulfonium ylides provided 2,3-trans-disubstituted 2,3,4,6,7,8-hexahydro-5H-1-benzopyran-5-ones in high yields without the formation of any isomers. The obtained product was readily converted into highly substituted chromane.
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Affiliation(s)
- Hisanori Nambu
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama 930-0194, Japan.
| | - Yuta Onuki
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama 930-0194, Japan.
| | - Naoki Ono
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama 930-0194, Japan.
| | - Kiyoshi Tsuge
- Graduate School of Science and Engineering, University of Toyama, Gofuku, Toyama 930-8555, Japan
| | - Takayuki Yakura
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama 930-0194, Japan.
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26
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Zotova MA, Novikov RA, Volodin AD, Korlyukov AA, Tkachev YV, Korolev VA, Tomilov YV. Four-Membered Cycle Formation Challenge: GaCl3
-Promoted Formal [2+2]-Cycloaddition of Donor-Acceptor Cyclopropanes to Bicyclobutylidene. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900329] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Maria A. Zotova
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky prosp. 119991 Moscow Russian Federation
| | - Roman A. Novikov
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky prosp. 119991 Moscow Russian Federation
- Engelhardt Institute of Molecular Biology; Russian Academy of Sciences; 32 Vavilov st. 119991 Moscow Russian Federation
| | - Alexander D. Volodin
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilov Str., 28 119991 Moscow Russia
| | - Alexander A. Korlyukov
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilov Str., 28 119991 Moscow Russia
- Pirogov Russian National Research Medical University; Ostrovitianov str. 1 117997 Moscow Russia
| | - Yaroslav V. Tkachev
- Engelhardt Institute of Molecular Biology; Russian Academy of Sciences; 32 Vavilov st. 119991 Moscow Russian Federation
| | - Victor A. Korolev
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky prosp. 119991 Moscow Russian Federation
| | - Yury V. Tomilov
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky prosp. 119991 Moscow Russian Federation
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27
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Denisov DA, Borisov DD, Korolev VA, Novikov RA, Tomilov YV. Three-Component GaHal3-Promoted Reactions of Substituted Methylidenemalonates and Donor–Acceptor Cyclopropanes with Propargyl Halides: Cascade Diastereoselective Construction of Five-Membered Lactones. J Org Chem 2019; 84:6174-6182. [DOI: 10.1021/acs.joc.9b00354] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Dmitry A. Denisov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Denis D. Borisov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Victor A. Korolev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Roman A. Novikov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Yury V. Tomilov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
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28
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Aggarwal T, Sushmita S, Verma AK. Recent advances in the synthesis of carbazoles from indoles. Org Biomol Chem 2019; 17:8330-8342. [DOI: 10.1039/c9ob01381d] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Synthesis of carbazoles using indoles as precursors through CH activation/annulation.
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Affiliation(s)
- Trapti Aggarwal
- Synthetic Organic Chemistry Laboratory
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Sushmita Sushmita
- Synthetic Organic Chemistry Laboratory
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Akhilesh K. Verma
- Synthetic Organic Chemistry Laboratory
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
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29
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Verma K, Taily IM, Banerjee P. Exploitation of donor–acceptor cyclopropanes and N-sulfonyl 1-azadienes towards the synthesis of spiro-cyclopentane benzofuran derivatives. Org Biomol Chem 2019; 17:8149-8152. [DOI: 10.1039/c9ob01369e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An efficient method for the synthesis of spiro-cyclopentane benzofuran derivatives via a MgI2-catalyzed formal [3 + 2] cycloaddition reaction between donor–acceptor cyclopropanes and N-sulfonyl 1-azadienes in good yield has been developed.
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Affiliation(s)
- Kamal Verma
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
| | | | - Prabal Banerjee
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
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