1
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Zhang Y, Tian L, Wang Y, Mo L, Liu Q, Ren Y, Teng F, Yin M, Liu P, He Y. Regio- and Diastereoselective Hydrophosphination and Hydroamidation of gem-Difluorocyclopropenes. J Org Chem 2024; 89:5442-5457. [PMID: 38567881 DOI: 10.1021/acs.joc.3c02890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
In this study, concise, efficient, and modular hydrophosphinylation and hydroamidation of gem-difluorocyclopropenes were disclosed in a mild and transition-metal-free pattern. Through this approach, phosphorus, and nitrogen-containing gem-difluorocyclopropanes were produced in moderate to good yields with excellent regio- and diastereoselectivity. Readily available gem-difluorocyclopropenes and nucleophilic reagents, along with inexpensive inorganic bases, were employed. Multiple synthetic applications, including gram-scale and derivatization reactions and modification of bioactive molecules, were subsequently elaborated.
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Affiliation(s)
- Yuanshuo Zhang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China
| | - Limei Tian
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China
| | - Yali Wang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China
| | - Lisha Mo
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China
| | - Qianwen Liu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China
| | - Yifan Ren
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China
| | - Fan Teng
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Minhai Yin
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China
| | - Peng Liu
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Yimiao He
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China
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2
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Liu A, Zhang X, Zhao F, Ni C, Hu J. Controllable Fluorocarbon Chain Elongation: TMSCF 2Br-Enabled Trifluorovinylation and Pentafluorocyclopropylation of Aldehydes. J Am Chem Soc 2024; 146:1806-1812. [PMID: 38193677 DOI: 10.1021/jacs.3c12919] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Controllable fluorocarbon chain elongation (CFCE) is a promising yet underdeveloped strategy for the well-defined synthesis of structurally novel polyfluorinated compounds. Herein, the direct and efficient trifluorovinylation and pentafluorocyclopropylation of aldehydes are described by using TMSCF2Br (TMS = trimethylsilyl) as the sole fluorocarbon source, accomplishing the goals of CFCE from C1 to C2 and from C1 to C3, respectively. The key to the success of these CFCE processes lies in the unique and diversified chemical reactivity of TMSCF2Br, which can serve as two different precursors, namely, a TMSCF2 radical precursor and a difluorocarbene precursor. Various functional groups are amenable to this new synthetic protocol, providing streamlined access to a broad range of alcohols containing trifluorovinyl or pentafluorocyclopropyl moieties from abundantly available aldehydes. The potential utility of these methods is further demonstrated by the gram-scale synthesis, derivatization, and measurement of log P values of the products.
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Affiliation(s)
- An Liu
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Xianghong Zhang
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Feng Zhao
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Chuanfa Ni
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Jinbo Hu
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
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3
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Sperga A, Veliks J. Recent Advances in Monofluorinated Carbenes, Carbenoids, Ylides, and Related Species. Chemistry 2023:e202301851. [PMID: 37902650 DOI: 10.1002/chem.202301851] [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: 06/15/2023] [Indexed: 10/31/2023]
Abstract
The synthesis of monofluorinated compounds is of great interest because of the vast applications of organofluorine compounds. Recently, the introduction of monofluorocarbene synthons has emerged as an important strategy for the synthesis of fluorine-containing products. In contrast to direct fluorination, in which C-F bonds are formed, the use of monofluorinated carbenes and related reactive species involves C-C or C-X bond formation while delivering valuable fluorine atoms into the target structure. Owing to increased knowledge on carbon-carbon and carbon-heteroatom bond formations, monofluorinated carbenes have enormous potential for the synthesis of organofluorine compounds, which, in our opinion, has not yet been fully exploited. This review summarizes the recent advances in the synthetic applications of monofluorinated carbenes, carbenoids, ylides, and related species.
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Affiliation(s)
- Arturs Sperga
- Latvian Institute of OrganicSynthesis, Aizkrauklesiela 21, 1006, Riga, Latvia
| | - Janis Veliks
- Latvian Institute of OrganicSynthesis, Aizkrauklesiela 21, 1006, Riga, Latvia
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4
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Šlachtová V, Casaretto N, Brulíková L, Six Y. Bicyclic N-dihalocyclopropylamide derivatives as precursors of nitrogen-containing fused polycyclic systems. Org Biomol Chem 2023; 21:6325-6341. [PMID: 37337777 DOI: 10.1039/d3ob00643c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
Examples of carbon-carbon bond-forming cyclisation reactions, involving allyl cations generated by the thermal ring-opening of halocyclopropanes, have been scarcely reported. In this contribution, we are describing the results of a study conducted with N-dihalocyclopropylamide substrates, designed as precursors of cyclic iminium intermediates that were aimed at participating in intramolecular reactions with electron-rich aromatic groups. Competitive side-reactions were identified, and access to the desired polycyclic products was carefully evaluated. The results were found to be strongly dependent on the substitution pattern of the nucleophilic aromatic moieties, as well as on the sizes of the rings of the target products. In spite of the rather moderate yields generally obtained, this approach represents a particularly short and inexpensive route to various interesting nitrogen-containing polycyclic systems, namely benzoindolizidine, benzoquinolizidine, piperidinobenzoazepane and azepanoisoquinoline compounds.
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Affiliation(s)
- Veronika Šlachtová
- Department of Organic Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 12, 771 46, Olomouc, Czech Republic
| | - Nicolas Casaretto
- Laboratoire de Chimie Moléculaire (LCM), UMR 9168 CNRS/École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau Cedex, France
| | - Lucie Brulíková
- Department of Organic Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 12, 771 46, Olomouc, Czech Republic
| | - Yvan Six
- Laboratoire de Synthèse Organique (LSO), UMR 7652 CNRS/ENSTA/École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau Cedex, France.
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5
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Khade VV, Bhowmick A, Thube AS, Bhat RG. Direct Access to Strained Fused Dihalo-Aziridino Quinoxalinones via C3-Alkylation Followed by Tandem Cyclization. J Org Chem 2023. [PMID: 37262098 DOI: 10.1021/acs.joc.3c00033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Quinoxalinones are a privileged class of compounds, and their structural framework is found in many bioactive compounds, natural compounds, and pharmaceuticals. Quinoxalinone is a promising scaffold for different types of functionalization, and the slight modification of the quinoxalinone skeleton is known to offer a wide range of compounds for drug discovery. Owing to the importance of the quinoxalinone scaffold, we have developed a base-mediated protocol for the C3-alkylation of quinoxalinone followed by tandem cyclization to access novel types of strenuous and fused dihalo-aziridino-quinoxalinone heterocycles via the construction of C-C and C-N bonds. The protocol proved to be simple and practical to access desired fused quinoxalinone heterocycles in excellent yields (up to 98% yield). As an application, the highly functionalized fused dihalo-aziridino-quinoxalinone molecule has been further utilized for mono-dehalogenation under visible light irradiation and selective amide reduction. Moreover, the protocol has also been demonstrated on a gram scale.
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Affiliation(s)
- Vikas V Khade
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Pune, Maharashtra 411008, India
| | - Anindita Bhowmick
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Pune, Maharashtra 411008, India
| | - Archana S Thube
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Pune, Maharashtra 411008, India
| | - Ramakrishna G Bhat
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Pune, Maharashtra 411008, India
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6
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Wang X, Patureau FW. Pd-catalyzed access to mono- and di-fluoroallylic amines from primary anilines. Chem Commun (Camb) 2023; 59:486-489. [PMID: 36530134 PMCID: PMC9814328 DOI: 10.1039/d2cc05844h] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The Pd-catalyzed highly selective synthesis of mono- and di-2-fluoroallylic amines from gem-difluorocyclopropanes and ubiquitous unprotected primary anilines is herein described. Initial kinetic investigations suggest a first order in the gem-difluorocyclopropane substrate, as well as a circa zeroth order in the aniline coupling partner. The newly produced fluoroallylic motifs should find important applications in synthetic as well as medicinal chemistry and stimulate the further development of coupling methods based on strained cyclic building blocks.
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Affiliation(s)
- Xingben Wang
- Institute of Organic Chemistry, RWTH Aachen UniversityLandoltweg 1Aachen 52074Germanyhttps://www.patureau-oc-rwth-aachen.de
| | - Frederic W. Patureau
- Institute of Organic Chemistry, RWTH Aachen UniversityLandoltweg 1Aachen 52074Germanyhttps://www.patureau-oc-rwth-aachen.de
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7
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Kumar D, Ganesh M, Namboothiri INN. Metal-mediated reactions of bromoform with electron-rich and electron-deficient carbon-carbon and carbon-hetero atom multiple bonds. J CHEM SCI 2022. [DOI: 10.1007/s12039-022-02075-9] [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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8
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Borisova YG, Dzhumaev SS, Khusnutdinova NS, Mryasova LM, Raskildina GZ, Zlotskii SS. Synthesis and Herbicidal Activity of Some Substituted 1,3-Dioxacycloalkanes and gem-Dichlorocyclopropanes. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222010017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Mąkosza M, Fedoryński M. Dichlorocarbene and analogs: discovery, properties and reactions. Russ Chem Bull 2022. [DOI: 10.1007/s11172-021-3317-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Baker RJ, Ching J, Hou TR, Franzoni I, Lautens M. Dearomative Cyclopropanation of Naphthols via Cyclopropene Ring‐Opening. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rachel J. Baker
- Davenport Laboratories Department of Chemistry University of Toronto 80 St. George St. Toronto Ontario M5S 3H6 Canada
| | - Justin Ching
- Davenport Laboratories Department of Chemistry University of Toronto 80 St. George St. Toronto Ontario M5S 3H6 Canada
| | - Teh Ren Hou
- Davenport Laboratories Department of Chemistry University of Toronto 80 St. George St. Toronto Ontario M5S 3H6 Canada
| | - Ivan Franzoni
- NuChem Sciences Inc. 350 rue Cohen, Suite 201 Saint-Laurent Quebec H4R 2N6 Canada
| | - Mark Lautens
- Davenport Laboratories Department of Chemistry University of Toronto 80 St. George St. Toronto Ontario M5S 3H6 Canada
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11
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Baker RJ, Ching J, Hou TR, Franzoni I, Lautens M. Dearomative Cyclopropanation of Naphthols via Cyclopropene Ring-Opening. Angew Chem Int Ed Engl 2021; 61:e202116171. [PMID: 34939302 DOI: 10.1002/anie.202116171] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Indexed: 11/07/2022]
Abstract
The dearomatization of 2-naphthols represents a simple method for the construction of complex 3D structures from simple planar starting materials. We describe a cyclopropanation of 2-naphthols that proceeds via cyclopropene ring-opening using rhodium and acid catalysis under mild conditions. The vinyl cyclopropane molecules were formed with high chemoselectivity and scalability, which could be further functionalized at different sites. Both computational and experimental evidence were used to elucidate the reaction mechanism.
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Affiliation(s)
| | | | | | | | - Mark Lautens
- University of Toronto, Dept. of Chemistry, 80 St. George Street, M5S 3H6, Toronto, CANADA
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12
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Lepage RJ, Moore PW, Hewitt RJ, Teesdale-Spittle PH, Krenske EH, Harvey JE. Mechanistic Studies on the Base-Promoted Ring Opening of Glycal-Derived gem-Dibromocyclopropanes. J Org Chem 2021; 87:301-315. [PMID: 34932347 DOI: 10.1021/acs.joc.1c02366] [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
In the presence of a nucleophilic base, ring-fused gem-dibromocyclopropanes derived from d-glycals undergo ring opening to give 2-deoxy-2-(E-bromomethylene)glycosides. Such cleavage of an exocyclic cyclopropane bond contrasts with the more usual silver-promoted ring-expansion reactions in which endocyclic bond cleavage occurs. Experimental and theoretical studies are reported which provide insights into the reaction mechanism and the origin of its kinetic selectivity for E-configured bromoalkene products. Density functional theory computations (M06-2X) predict that the reaction commences with alkoxide-induced HBr elimination from the dibromocyclopropane to form a bromocyclopropene. Ring opening then gives a configurationally stable zwitterionic (oxocarbenium cation/vinyl carbanion) intermediate, which undergoes nucleophilic addition and protonation to give the bromoalkene. There are two competing sources of the proton in the final step: One is the alcohol (co)solvent, and the other is the molecule of alcohol produced during the initial deprotonation step. The roles of the formed alcohol molecule and the bulk (co)solvent are demonstrated by isotope-labeling studies performed with deuterated solvents. The acid-promoted isomerization of the E-bromoalkene product into the corresponding Z-bromoalkene is also described. The mechanistic knowledge gained in this investigation sheds light on the unusual chemistry of this system and facilitates its future application in new settings.
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Affiliation(s)
- Romain J Lepage
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Peter W Moore
- School of Chemical and Physical Sciences, Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
| | - Russell J Hewitt
- School of Chemical and Physical Sciences, Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
| | - Paul H Teesdale-Spittle
- School of Biological Sciences, Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
| | - Elizabeth H Krenske
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Joanne E Harvey
- School of Chemical and Physical Sciences, Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
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13
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Hetero-Type Benzannulation Leading to Substituted Benzothio-Phenes. Molecules 2021; 26:molecules26227008. [PMID: 34834100 PMCID: PMC8620883 DOI: 10.3390/molecules26227008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/16/2021] [Accepted: 11/16/2021] [Indexed: 12/02/2022] Open
Abstract
TiCl4 (or SnCl4)-promoted hetero-type benzannulation reactions using various (2,2-dichlorocyclopropyl)(thiophen-2-yl)methanols proceeded smoothly to produce uniquely substituted 4-chlorobenzothiophenes (five examples). The present approach involves the first distinctive thiophene formation from thiophene cores, in contrast to traditional methods of thiophene formation from benzene cores. The stereocongested (less reactive) Cl position in the obtained 4-chlorobenzothiophenes functioned successfully as the partners of three cross-coupling reactions: (i) a Suzuki–Miyaura cross-couplings using Pd(OAc)2/SPhos/K3PO4 catalysis (seven examples; 63–91%), (ii) a hydroxylation using KOH/Pd(dba)2/tBu-XPhos catalysis (85%), and (iii) a borylation using a B2(pin)2/Pd(dba)2/XPhos/NaOAc catalysis-provided 4-(pin)B-benzothiophene (58%).
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14
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Moriguchi K, Sasaki R, Morita JI, Kamakura Y, Tanaka D, Tanabe Y. Ipso -Type Regiocontrolled Benzannulation for the Synthesis of Uniquely Substituted α-Arylnaphthalenes: Application to the First Total Synthesis of Chaihunaphthone. ACS OMEGA 2021; 6:18135-18156. [PMID: 34308046 PMCID: PMC8296562 DOI: 10.1021/acsomega.1c02000] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 06/18/2021] [Indexed: 06/13/2023]
Abstract
A distinctive method for synthesizing a variety of multisubstituted α-arylnaphthalenes utilizing novel regiocontrolled ipso-type [4 + 2] benzannulation is presented. Ortho- and para-substituted 1-Ar1-1-Ar2-2,2-dichlorocyclopropylmethanols (AACM) were transformed to the corresponding ipso-type α-arylnaphthalenes. (i) The reaction of ortho-AACM using TiCl4 or SnCl4 (1.0 equiv) proceeded smoothly to afford ipso-type α-arylnaphthalenes (seven examples; 49-69% yield) exclusively, without producing conventional benzannulation isomers. (ii) Para-AACM also underwent the reaction successfully to afford the desired ipso-type α-arylnaphthalenes (14 examples; 39-98% yield) without producing conventional benzannulation isomers. (iii) In contrast, meta-AACM underwent the previously reported conventional benzannulation. (iv) The present method exhibited sufficient substrate generality for application to ortho- and para-substituted AACM substrates bearing Me-, Cl-, and MeO- groups. (v) The six key structures were unambiguously confirmed by X-ray structure analyses. (vi) A plausible reaction mechanism for the present ipso-type reaction is proposed and supported by three careful cross-over and comparable experiments. To demonstrate the utility of the present reaction, we achieved the first total synthesis of chaihunaphthone, a uniquely (highly congested) substituted and less accessible natural lignan lactone with three contiguous trimethoxy substituents (total eight steps, overall 6.4% yield).
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Affiliation(s)
- Kento Moriguchi
- Department of Chemistry,
School of Science and Technology, Kwansei
Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Ryosuke Sasaki
- Department of Chemistry,
School of Science and Technology, Kwansei
Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Jun-ichi Morita
- Department of Chemistry,
School of Science and Technology, Kwansei
Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Yoshinobu Kamakura
- Department of Chemistry,
School of Science and Technology, Kwansei
Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Daisuke Tanaka
- Department of Chemistry,
School of Science and Technology, Kwansei
Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Yoo Tanabe
- Department of Chemistry,
School of Science and Technology, Kwansei
Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
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15
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Lee JW, Jang YS, Park JM, Park CP. Synthesis of
gem
‐Dichlorocyclopropanes Using Liquid–Liquid Slug Flow. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jong Won Lee
- Graduate School of Analytical Science and Technology (GRAST) Chungnam National University Daejeon 34134 Republic of Korea
| | - Yea Seul Jang
- Graduate School of Analytical Science and Technology (GRAST) Chungnam National University Daejeon 34134 Republic of Korea
| | - Jong Min Park
- Graduate School of Analytical Science and Technology (GRAST) Chungnam National University Daejeon 34134 Republic of Korea
| | - Chan Pil Park
- Graduate School of Analytical Science and Technology (GRAST) Chungnam National University Daejeon 34134 Republic of Korea
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16
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Schuppe AW, Liu Y, Newhouse TR. An invocation for computational evaluation of isomerization transforms: cationic skeletal reorganizations as a case study. Nat Prod Rep 2021; 38:510-527. [PMID: 32931541 PMCID: PMC7956923 DOI: 10.1039/d0np00005a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Covering: 2010 to 2020This review article describes how cationic rearrangement reactions have been used in natural product total synthesis over the last decade as a case study for the many productive ways by which isomerization reactions are enabling for synthesis. This review argues that isomerization reactions in particular are well suited for computational evaluation, as relatively simple calculations can provide significant insight.
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Affiliation(s)
- Alexander W Schuppe
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06511-8107, USA.
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17
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Hosseini SJ, Emamian S, Hassani H, Hamzehzadeh ND. Stereoselective Cyclopropanation of
Arylmethylidenemalononitriles by 2,6-Dimethylquinoline: A Molecular Electron Density
Theory Study. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428020120209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Chen D, Fan Z, Huang L, Gao K, Xiao P, Ni C, Hu J. TMSCFX 2 (X = Cl, Br) as halofluorocarbene sources for the synthesis of halofluorocyclopropanes. Chem Commun (Camb) 2021; 57:319-322. [PMID: 33326515 DOI: 10.1039/d0cc06004f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
TMSCFX2 (X = Cl, Br; TMS = trimethylsilyl) have been developed as halofluorocarbene (CFX, X = Cl, Br) precursors for [2+1] cyclopropanation with alkenes. Structurally diverse halofluorocyclopropanes were obtained in good to excellent yields. It was found that the reactivity order of the three halofluorocarbene reagents (TMSCF2Br, TMSCFCl2, and TMSCFBr2) in halofluorocyclopropanation with 1,1-diphenylethylene can be very different under different reaction conditions.
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Affiliation(s)
- Dingben Chen
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China.
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19
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Yokoshima S, Ueda K. Synthetic Studies on Densanins: Stereoselective Construction of a Pyrrolidine Ring Containing a Quaternary Carbon. HETEROCYCLES 2021. [DOI: 10.3987/com-20-s(k)4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Behnke NE, Siitonen JH, Chamness SA, Kürti L. Synthesis of Highly Substituted Cyclopropanes via the Quasi-Favorskii Rearrangement of α,α-Dichlorocyclobutanols. Org Lett 2020; 22:5715-5720. [PMID: 32330043 DOI: 10.1021/acs.orglett.0c01229] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A method for the synthesis of highly substituted cyclopropanes via a quasi-Favorskii rearrangement is described. The method includes the combination two chemical transformations starting from α,α-dichlorocyclobutanones prepared via the [2 + 2] Staudinger ketene cycloaddition between either terminal- or cis-olefins and dichloroketene. First, α,α-dichlorocyclobutanones are reacted with organocerium reagents to afford the corresponding tertiary alcohols in good to excellent yields through a nucleophilic addition reaction that provided exclusively anti-products. Second, upon irreversible deprotonation, the tertiary α,α-dichlorocyclobutanols underwent a ring-contraction reaction (i.e., quasi-Favorskii rearrangement) to form structurally diverse cyclopropanes in moderate to good yields. The syn-stereoselectivity during the quasi-Favorskii rearrangement was evaluated using DFT analysis.
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Affiliation(s)
- Nicole Erin Behnke
- Department of Chemistry, Rice University, BioScience Research Collaborative, 6500 Main Street, Rm 380, Houston, Texas 77030, United States
| | - Juha H Siitonen
- Department of Chemistry, Rice University, BioScience Research Collaborative, 6500 Main Street, Rm 380, Houston, Texas 77030, United States
| | - Stephen A Chamness
- Department of Chemistry, Rice University, BioScience Research Collaborative, 6500 Main Street, Rm 380, Houston, Texas 77030, United States
| | - László Kürti
- Department of Chemistry, Rice University, BioScience Research Collaborative, 6500 Main Street, Rm 380, Houston, Texas 77030, United States
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21
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Satam N, Nemu S, Gururaja GN, Namboothiri INN. Substrate-oriented selectivity in the Mg-mediated conjugate addition of bromoform to electron-deficient alkenes. Org Biomol Chem 2020; 18:5697-5707. [PMID: 32663237 DOI: 10.1039/d0ob00599a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The Mg-mediated conjugate addition of bromoform to a variety of electron-deficient alkenes has been investigated. In the case of nitrodienes and dibenzylideneacetones, tribromomethylated products were isolated, whereas spiro-cyclopropanated products were obtained with cyclic dibenzylideneketones and 3-olefinic oxindoles. The spiro-cyclopropyl ketones derived from cyclic dibenzylideneketones were successfully transformed into fused furans via the Cloke-Wilson rearrangement.
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Affiliation(s)
- Nishikant Satam
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India.
| | - Saumyadip Nemu
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India.
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22
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Kurimoto M, Nakajima D, Nishiyama Y, Yokoshima S. Semipinacol Rearrangement Induced by Cleavage of Dibromocyclopropane. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Michitaka Kurimoto
- Graduate School of Pharmaceutical Sciences Nagoya University Furo‐cho, Chikusa‐ku 464‐8601 Nagoya Japan
| | - Daisuke Nakajima
- Graduate School of Pharmaceutical Sciences Nagoya University Furo‐cho, Chikusa‐ku 464‐8601 Nagoya Japan
| | - Yoshitake Nishiyama
- Graduate School of Pharmaceutical Sciences Nagoya University Furo‐cho, Chikusa‐ku 464‐8601 Nagoya Japan
| | - Satoshi Yokoshima
- Graduate School of Pharmaceutical Sciences Nagoya University Furo‐cho, Chikusa‐ku 464‐8601 Nagoya Japan
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23
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Dočekal V, Petrželová S, Císařová I, Veselý J. Enantioselective Cyclopropanation of 4‐Nitroisoxazole Derivatives. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000231] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Vojtěch Dočekal
- Department of Organic Chemistry, Faculty of ScienceCharles University Hlavova 2030/8 128 43 Prague 2 Czech Republic
| | - Simona Petrželová
- Department of Teaching and Didactics of Chemistry, Faculty of ScienceCharles University Hlavova 2030/8 128 43 Prague 2 Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of ScienceCharles University Hlavova 2030/8 128 43 Prague 2 Czech Republic
| | - Jan Veselý
- Department of Organic Chemistry, Faculty of ScienceCharles University Hlavova 2030/8 128 43 Prague 2 Czech Republic
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24
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Craig D, Spreadbury SRJ, White AJP. Synthesis and hetero-Diels–Alder reactions of enantiomerically pure dihydro-1H-azepines. Chem Commun (Camb) 2020; 56:9803-9806. [DOI: 10.1039/d0cc04413j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thermolysis of enantiomerically pure 3-substituted 7,7-dihalo-2-azabicyclo[4.1.0]heptanes in the presence of K2CO3gives in good yields 2-alkyl-6-halo-1-tosyl-2,3-dihydro-1H-azepines.
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Affiliation(s)
- Donald Craig
- Department of Chemistry
- Imperial College London
- Molecular Sciences Research Hub
- Wood Lane
- UK
| | | | - Andrew J. P. White
- Chemical Crystallography Laboratory
- Imperial College London
- Molecular Sciences Research Hub
- Wood Lane
- UK
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25
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Li J, Gao K, Bian M, Ding H. Recent advances in the total synthesis of cyclobutane-containing natural products. Org Chem Front 2020. [DOI: 10.1039/c9qo01178a] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Recent developments of strategies on the construction of cyclobutanes and their application in complex natural product synthesis are discussed.
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Affiliation(s)
- Jinshan Li
- Institute of Medicinal Natural Products
- School of Advanced Study
- Taizhou University
- Taizhou 318000
- P. R. China
| | - Kai Gao
- Institute of Medicinal Natural Products
- School of Advanced Study
- Taizhou University
- Taizhou 318000
- P. R. China
| | - Ming Bian
- School of Chemistry and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- P.R. China
| | - Hanfeng Ding
- Institute of Medicinal Natural Products
- School of Advanced Study
- Taizhou University
- Taizhou 318000
- P. R. China
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26
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Batista GMF, De Castro PP, Carpanez AG, Horta BAC, Amarante GW. gem-Dichlorocyclopropanation of Dicarbonyl Derivatives. Chemistry 2019; 25:16555-16563. [PMID: 31647594 DOI: 10.1002/chem.201904149] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/23/2019] [Accepted: 10/24/2019] [Indexed: 01/24/2023]
Abstract
A novel methodology for the 1,1-dichlorocyclopropanation of dicarbonyl conjugated olefins was described. The developed protocol is simple and uses readily accessible starting materials, allowing the isolation of the desired adducts in moderate to excellent yields (up to 99 %). Furthermore, the reaction tolerated scale up to the gram scale; thus highlighting the synthetic potential of this transformation. Control experiments and DFT studies revealed that the reaction proceeded through a Michael-initiated ring-closure process, in which reaction temperature played a crucial role. Finally, these gem-dichlorocyclopropanes were also employed in the preparation of a trisubstituted naphthyl derivative and a diastereoselective reduction was also demonstrated.
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Affiliation(s)
- Gabriel M F Batista
- Chemistry Department, Federal University of Juiz de Fora, Campus Martelos, Juiz de Fora, Minas Gerais, 36036-900, Brazil
| | - Pedro P De Castro
- Chemistry Department, Federal University of Juiz de Fora, Campus Martelos, Juiz de Fora, Minas Gerais, 36036-900, Brazil
| | - Arthur G Carpanez
- Chemistry Department, Federal University of Juiz de Fora, Campus Martelos, Juiz de Fora, Minas Gerais, 36036-900, Brazil
| | - Bruno A C Horta
- Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-909, Brazil
| | - Giovanni W Amarante
- Chemistry Department, Federal University of Juiz de Fora, Campus Martelos, Juiz de Fora, Minas Gerais, 36036-900, Brazil
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27
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Patel K, Mishra UK, Mukhopadhyay D, Ramasastry SSV. Beyond the Corey-Chaykovsky Reaction: Synthesis of Unusual Cyclopropanoids via Desymmetrization and Thereof. Chem Asian J 2019; 14:4568-4571. [PMID: 31513351 DOI: 10.1002/asia.201901108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 09/11/2019] [Indexed: 01/11/2023]
Abstract
Desymmetrization-based protocols for the synthesis of highly functionalized indeno-spirocyclopropanes and cyclopropa-fused indanes have been established through unexpected reactions triggered by the Corey-Chaykovsky reagent. These structures were further elaborated in one step to privileged scaffolds such as fluorenones, indenones, and naphthaphenones. For instance, an acid-catalyzed transformation of indeno-spirocyclopropanes provided fluorenones via a homo-Nazarov-type cyclization, and naphthaphenones were obtained via an acid-catalyzed cyclopropane ring-opening/retro-Michael sequence.
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Affiliation(s)
- Kaushalendra Patel
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, S. A. S. Nagar, Manauli PO, Punjab, 140306, India
| | - Uttam K Mishra
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, S. A. S. Nagar, Manauli PO, Punjab, 140306, India
| | - Dipto Mukhopadhyay
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, S. A. S. Nagar, Manauli PO, Punjab, 140306, India
| | - S S V Ramasastry
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, S. A. S. Nagar, Manauli PO, Punjab, 140306, India
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28
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Yu S, Noble A, Bedford RB, Aggarwal VK. Methylenespiro[2.3]hexanes via Nickel-Catalyzed Cyclopropanations with [1.1.1]Propellane. J Am Chem Soc 2019; 141:20325-20334. [DOI: 10.1021/jacs.9b10689] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Songjie Yu
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Adam Noble
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Robin B. Bedford
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Varinder K. Aggarwal
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
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29
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Tanaka K, Manabe H, Irie R, Oikawa M. An Empirical Model for Stereochemical Control in the Cyclization of Cyclopropanetricarboxylic Acid Esters. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20190096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Kento Tanaka
- Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama, Kanagawa 236-0027, Japan
| | - Hitomi Manabe
- Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama, Kanagawa 236-0027, Japan
| | - Raku Irie
- Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama, Kanagawa 236-0027, Japan
| | - Masato Oikawa
- Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama, Kanagawa 236-0027, Japan
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30
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Raskil’dina GZ, Borisova YG, Davletshin AR, Zlotskii SS. Catalytic Isomerization of Substituted Vinylcyclopropanes. DOKLADY CHEMISTRY 2019. [DOI: 10.1134/s0012500819070115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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31
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Goto T, Kawasaki-Takasuka T, Yamazaki T. Ring-Opening Functionalization of Simple gem-Difluorocyclopropanes by Single-Electron Oxidants. J Org Chem 2019; 84:9509-9518. [PMID: 31264871 DOI: 10.1021/acs.joc.9b01078] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Toshihito Goto
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei 184-8588, Japan
| | - Tomoko Kawasaki-Takasuka
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei 184-8588, Japan
| | - Takashi Yamazaki
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei 184-8588, Japan
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32
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Volchkov NV, Lipkind MB, Nefedov OM. Thermal cyclopropyl—allyl rearrangement of gem-chlorofluorocyclopropanes under gas-phase pyrolysis conditions. Formation of chlorofluoroalkenes and 2-fluorobuta-1,3-dienes. Russ Chem Bull 2019. [DOI: 10.1007/s11172-019-2567-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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33
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Abstract
Cyclopropanes, one of the most important strained rings, have gained much attention for more than a century because of their interesting and unique reactivity. They not only exist in many natural products, but have also been widely used in the fields of organic synthesis, medicinal chemistry and materials science as versatile building blocks. Based on the sustainable development in this area, this review mainly focuses on the recent advances in the synthesis of cyclopropanes classified by the type of catalytic system, including regio-, diastereo-, and enantio-selective reactions.
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Affiliation(s)
- Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
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34
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Liu Y, Wang QL, Chen Z, Zhou CS, Xiong BQ, Zhang PL, Yang CA, Zhou Q. Oxidative radical ring-opening/cyclization of cyclopropane derivatives. Beilstein J Org Chem 2019; 15:256-278. [PMID: 30800176 PMCID: PMC6369981 DOI: 10.3762/bjoc.15.23] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 01/04/2019] [Indexed: 01/21/2023] Open
Abstract
The ring-opening/cyclization of cyclopropane derivatives has drawn great attention in the past several decades. In this review, recent efforts in the development of oxidative radical ring-opening/cyclization of cyclopropane derivatives, including methylenecyclopropanes, cyclopropyl olefins and cyclopropanols, are described. We hope this review will be of sufficient interest for the scientific community to further advance the application of oxidative radical strategies in the ring-opening/cyclization of cyclopropane derivatives.
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Affiliation(s)
- Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
| | - Qiao-Lin Wang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
| | - Zan Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
| | - Cong-Shan Zhou
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
| | - Pan-Liang Zhang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
| | - Chang-An Yang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
| | - Quan Zhou
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, P. R. China
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35
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Mishra UK, Patel K, Ramasastry SSV. Synthesis of Cyclopropanoids via Substrate-Based Cyclization Pathways. Org Lett 2019; 21:175-179. [PMID: 30543443 DOI: 10.1021/acs.orglett.8b03537] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A series of unexpected reactions triggered by the dimethyloxosulfonium methylide led to the discovery of unconventional approaches for the synthesis of cyclopropa-fused tetralones and indeno-spirocyclopropanes. These highly functionalized structures were further elaborated in one step to privileged scaffolds such as tetralones, indenones, and fluorenones. As a whole, the results presented herein establish new diversity-oriented folding pathways.
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Affiliation(s)
- Uttam K Mishra
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences , Indian Institute of Science Education and Research (IISER) Mohali , Sector 81 , Manauli PO, S. A. S. Nagar, Punjab 140306 , India
| | - Kaushalendra Patel
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences , Indian Institute of Science Education and Research (IISER) Mohali , Sector 81 , Manauli PO, S. A. S. Nagar, Punjab 140306 , India
| | - S S V Ramasastry
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences , Indian Institute of Science Education and Research (IISER) Mohali , Sector 81 , Manauli PO, S. A. S. Nagar, Punjab 140306 , India
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36
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Zhao X, Xu S, He J, Zhou Y, Cao S. Highly regio- and diastereoselective Cu-catalyzed hydroborylation and hydrosilylation of difluorocyclopropenes with B2pin2 and PhMe2Si–Bpin. Org Chem Front 2019. [DOI: 10.1039/c9qo00580c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient method for the synthesis of trans-difluorocyclopropyl boronates and silanes through a Cu-catalyzed hydroborylation and hydrosilylation of difluorocyclopropenes was reported.
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Affiliation(s)
- Xianghu Zhao
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Sixue Xu
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Jingjing He
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Yao Zhou
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Song Cao
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
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37
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Kim SJ, Lough AJ, Batey RA. An Approach to the 9-Oxo-10-oxabicyclo[5.3.0]dec-2-ene Core of the Guaianolide and Pseudoguaianolide Sesquiterpenes via a Domino Electrocyclic Ring-Opening/Carboxylic Acid Trapping of a gem-Dibromocyclopropane. J Org Chem 2018; 83:13799-13810. [PMID: 30303376 DOI: 10.1021/acs.joc.8b02081] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A domino silver(I)-promoted electrocyclic 2π-disrotatory electrocyclic ring-opening/intramolecular nucleophilic trapping of [ n.1.0]-dibromocyclopropanes by tethered carboxylic acids results in cyclization to butyrolactones fused to six- and seven-membered carbocycles. In the case of bicyclic [4.3.0] lactones the cis-fused stereoisomer was formed, whereas for the bicyclic [5.3.0] lactones the trans-fused stereoisomer was formed. Optimal conditions for the reaction used silver(I) trifluoroacetate (2.0 equiv) in trifluoroethanol or with added pyridine (2.0 equiv) and NaPF6 (5.0 equiv). The dibromocyclopropane precursors were made through cyclopropanation with in situ-generated dibromocarbene. The trans-fused lactones are potentially useful building blocks for pseudoguaianolide, guaianolide, and xanthanolide total synthesis. A computational study on the conformational preferences of these systems indicates that the trans-fused bicyclic [5.3.0] butyrolactones are lower in energy than the corresponding cis-fused lactones at the B3LYP/cc-pVTZ level of theory.
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Affiliation(s)
- Simon J Kim
- Davenport Research Laboratories, Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Alan J Lough
- Davenport Research Laboratories, Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Robert A Batey
- Davenport Research Laboratories, Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
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38
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Andrianova AA, Maslova YD, Novikov MA, Semenov SE, Nefedov OM. (NHC)AgCl catalyzed bromofluorocyclopropanation of alkenes with CFBr2CO2Na. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.02.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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39
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Tomilov YV, Menchikov LG, Novikov RA, Ivanova OA, Trushkov IV. Methods for the synthesis of donor-acceptor cyclopropanes. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4787] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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40
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Abstract
Cyclopropanes have gained much attention by virtue of their interesting structure and unique reactivity. This review discusses the recent advances in the synthesis of cyclopropanes, and some of the related applications will be discussed.
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Affiliation(s)
- Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- Guangdong Engineering Research Center for Green Fine Chemicals
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
| | - Zhiming Lin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- Guangdong Engineering Research Center for Green Fine Chemicals
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- Guangdong Engineering Research Center for Green Fine Chemicals
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
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41
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Angamuthu V, Chang WJ, Hou DR. Anti-addition of Dimethylsulfoxonium Methylide to Acyclic α,β-Unsaturated Ketones and Its Application in Formal Synthesis of an Eicosanoid. ACS OMEGA 2017; 2:4088-4099. [PMID: 31457710 PMCID: PMC6641733 DOI: 10.1021/acsomega.7b00663] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 07/07/2017] [Indexed: 06/10/2023]
Abstract
Cyclopropanation using dimethylsulfoxonium methylide (Corey-Chaykovsky reaction) was examined with a series of linear α,β-unsaturated ketones, and the results showed that the major trajectory for the addition of the sulfur ylide to the enones is anti, related to the γ-substituent. The stereochemical assignment for the generated cyclopropanes was achieved by X-ray crystallography or comparing with the reported spectroscopic data. We found that the diastereoselectivity was influenced by several factors, including the protecting groups, solvents, and temperatures, and good anti/syn ratios (>10:1) were often obtained using the tert-butyldimethylsilyl and tert-butyldiphenylsilyl-protected substrates. The method was applied to a formal synthesis of a natural eicosanoid with good efficiency.
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43
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Grudzień K, Basak T, Barbasiewicz M, Wojciechowski TM, Fedoryński M. Synthesis, properties and application of electronically-tuned tetraarylarsonium salts as phase transfer catalysts (PTC) for the synthesis of gem -difluorocyclopropanes. J Fluor Chem 2017. [DOI: 10.1016/j.jfluchem.2017.03.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Chen C, Kattanguru P, Tomashenko OA, Karpowicz R, Siemiaszko G, Bhattacharya A, Calasans V, Six Y. Synthesis of functionalised azepanes and piperidines from bicyclic halogenated aminocyclopropane derivatives. Org Biomol Chem 2017; 15:5364-5372. [DOI: 10.1039/c7ob01238a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Reductive amination of aldehydes or ketones with suitable dihalogenated bicyclic aminocyclopropanes gives functionalised ring-expanded products in a single step.
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Affiliation(s)
- Cheng Chen
- Laboratoire de Synthèse Organique (LSO)
- UMR 7652 CNRS/ENSTA/École Polytechnique
- Université Paris-Saclay
- 91128 Palaiseau Cedex
- France
| | - Pullaiah Kattanguru
- Laboratoire de Synthèse Organique (LSO)
- UMR 7652 CNRS/ENSTA/École Polytechnique
- Université Paris-Saclay
- 91128 Palaiseau Cedex
- France
| | - Olesya A. Tomashenko
- Laboratoire de Synthèse Organique (LSO)
- UMR 7652 CNRS/ENSTA/École Polytechnique
- Université Paris-Saclay
- 91128 Palaiseau Cedex
- France
| | - Rafał Karpowicz
- Laboratoire de Synthèse Organique (LSO)
- UMR 7652 CNRS/ENSTA/École Polytechnique
- Université Paris-Saclay
- 91128 Palaiseau Cedex
- France
| | - Gabriela Siemiaszko
- Laboratoire de Synthèse Organique (LSO)
- UMR 7652 CNRS/ENSTA/École Polytechnique
- Université Paris-Saclay
- 91128 Palaiseau Cedex
- France
| | - Ahanjit Bhattacharya
- Laboratoire de Synthèse Organique (LSO)
- UMR 7652 CNRS/ENSTA/École Polytechnique
- Université Paris-Saclay
- 91128 Palaiseau Cedex
- France
| | - Vinícius Calasans
- Laboratoire de Synthèse Organique (LSO)
- UMR 7652 CNRS/ENSTA/École Polytechnique
- Université Paris-Saclay
- 91128 Palaiseau Cedex
- France
| | - Yvan Six
- Laboratoire de Synthèse Organique (LSO)
- UMR 7652 CNRS/ENSTA/École Polytechnique
- Université Paris-Saclay
- 91128 Palaiseau Cedex
- France
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