301
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Photoredox-catalyzed oxo-amination of aryl cyclopropanes. Nat Commun 2019; 10:4367. [PMID: 31554813 PMCID: PMC6761154 DOI: 10.1038/s41467-019-12403-2] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 09/03/2019] [Indexed: 01/14/2023] Open
Abstract
Cyclopropanes represent a class of versatile building blocks in modern organic synthesis. While the release of ring strain offers a thermodynamic driving force, the control of selectivity for C–C bond cleavage and the subsequent regiochemistry of the functionalization remains difficult, especially for unactivated cyclopropanes. Here we report a photoredox-coupled ring-opening oxo-amination of electronically unbiased cyclopropanes, which enables the expedient construction of a host of structurally diverse β-amino ketone derivatives. Through one electron oxidation, the relatively inert aryl cyclopropanes are readily converted into reactive radical cation intermediates, which in turn participate in the ensuing ring-opening functionalizations. Based on mechanistic studies, the present oxo-amination is proposed to proceed through an SN2-like nucleophilic attack/ring-opening manifold. This protocol features wide substrate scope, mild reaction conditions, and use of dioxygen as an oxidant both for catalyst regeneration and oxygen-incorporation. Moreover, a one-pot formal aminoacylation of olefins is described through a sequential cyclopropanation/oxo-amination. The ring-opening and functionalization of electronically unbiased cyclopropanes is highly challenging to achieve in a regioselective fashion. Here, the authors report a mild photoredox-coupled oxoamination of electronically unactivated aryl cyclopropanes with simple azaarenes and molecular oxygen.
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302
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Chen T, Gan L, Wang R, Deng Y, Peng F, Lautens M, Shao Z. Rhodium(I)/Zn(OTf)
2
‐Catalyzed Asymmetric Ring Opening/Cyclopropanation of Oxabenzonorbornadienes with Phosphorus Ylides. Angew Chem Int Ed Engl 2019; 58:15819-15823. [DOI: 10.1002/anie.201909596] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/28/2019] [Indexed: 01/21/2023]
Affiliation(s)
- Tao Chen
- Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education School of Chemical Science and Technology State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan University Kunming 650091 China
| | - Lifei Gan
- Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education School of Chemical Science and Technology State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan University Kunming 650091 China
| | - Ran Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education School of Chemical Science and Technology State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan University Kunming 650091 China
| | - Yuhua Deng
- Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education School of Chemical Science and Technology State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan University Kunming 650091 China
| | - Fangzhi Peng
- Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education School of Chemical Science and Technology State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan University Kunming 650091 China
| | - Mark Lautens
- Davenport Laboratories Department of Chemistry University of Toronto 80 St. George Street Toronto ON M5S 3H6 Canada
| | - Zhihui Shao
- Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education School of Chemical Science and Technology State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan University Kunming 650091 China
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303
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Chen T, Gan L, Wang R, Deng Y, Peng F, Lautens M, Shao Z. Rhodium(I)/Zn(OTf)
2
‐Catalyzed Asymmetric Ring Opening/Cyclopropanation of Oxabenzonorbornadienes with Phosphorus Ylides. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909596] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Tao Chen
- Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education School of Chemical Science and Technology State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan University Kunming 650091 China
| | - Lifei Gan
- Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education School of Chemical Science and Technology State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan University Kunming 650091 China
| | - Ran Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education School of Chemical Science and Technology State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan University Kunming 650091 China
| | - Yuhua Deng
- Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education School of Chemical Science and Technology State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan University Kunming 650091 China
| | - Fangzhi Peng
- Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education School of Chemical Science and Technology State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan University Kunming 650091 China
| | - Mark Lautens
- Davenport Laboratories Department of Chemistry University of Toronto 80 St. George Street Toronto ON M5S 3H6 Canada
| | - Zhihui Shao
- Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education School of Chemical Science and Technology State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan University Kunming 650091 China
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304
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Turnu F, Luridiana A, Cocco A, Porcu S, Frongia A, Sarais G, Secci F. Catalytic Tandem Friedel–Crafts Alkylation/C4–C3 Ring-Contraction Reaction: An Efficient Route for the Synthesis of Indolyl Cyclopropanecarbaldehydes and Ketones. Org Lett 2019; 21:7329-7332. [DOI: 10.1021/acs.orglett.9b02617] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Francesca Turnu
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554, bivio per Sestu, 09042 Monserrato (CA), Italy
| | - Alberto Luridiana
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554, bivio per Sestu, 09042 Monserrato (CA), Italy
| | - Andrea Cocco
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554, bivio per Sestu, 09042 Monserrato (CA), Italy
| | - Stefania Porcu
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554, bivio per Sestu, 09042 Monserrato (CA), Italy
| | - Angelo Frongia
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554, bivio per Sestu, 09042 Monserrato (CA), Italy
| | - Giorgia Sarais
- Dipartimento di Scienze della Vita e dell’Ambiente, Università degli Studi di Cagliari, via Ospedale 82, 09124 Cagliari, Italy
| | - Francesco Secci
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554, bivio per Sestu, 09042 Monserrato (CA), Italy
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305
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Whyte A, Mirabi B, Torelli A, Prieto L, Bajohr J, Lautens M. Asymmetric Synthesis of Boryl-Functionalized Cyclobutanols. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03216] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Andrew Whyte
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Bijan Mirabi
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Alexa Torelli
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Liher Prieto
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), 48080 Bilbao, Spain
| | - Jonathan Bajohr
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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306
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Wang W, Mi Y, Cao XP, Shi ZF. Enantioselective Formal Synthesis of (+)-Cycloclavine and Total Synthesis of (+)-5- epi-Cycloclavine. Org Lett 2019; 21:6603-6607. [PMID: 31411477 DOI: 10.1021/acs.orglett.9b02015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Starting from the commercially available 4-bromoindole, a concise and efficient enantioselective formal synthesis of (+)-cycloclavine (1) in 13 steps with 2.0% overall yield and a total synthesis of (+)-5-epi-cycloclavine (2) in 14 steps with 3.3% overall yield were achieved. Key features of the syntheses include the addition of a Grignard reagent to the C═N/Heck reaction sequence to construct the fused 6-5-6 ring systems, cyclopropanation, an ester aminolysis reaction, and the first example of the construction of a 3-azabicyclo[3,1,0]hexane through an intramolecular [3 + 2] cycloaddition/nitrogen extrusion.
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Affiliation(s)
- Wei Wang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yang Mi
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiao-Ping Cao
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zi-Fa Shi
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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307
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Zhao ZY, Nie YX, Tang RH, Yin GW, Cao J, Xu Z, Cui YM, Zheng ZJ, Xu LW. Enantioselective Rhodium-Catalyzed Desymmetric Hydrosilylation of Cyclopropenes. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02623] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Zhi-Yuan Zhao
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
| | - Yi-Xue Nie
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
| | - Ren-He Tang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
| | - Guan-Wu Yin
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
| | - Jian Cao
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
| | - Yu-Ming Cui
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
| | - Zhan-Jiang Zheng
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
| | - Li-Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute (SRI) of Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences and University of Chinese Academy of Sciences (UCAS), Lanzhou 730000, P. R. China
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308
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Photoredox‐Catalyzed Cyclopropanation of 1,1‐Disubstituted Alkenes via Radical‐Polar Crossover Process. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900708] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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309
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310
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Yu Z, Mendoza A. Enantioselective Assembly of Congested Cyclopropanes using Redox-Active Aryldiazoacetates. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02615] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Zhunzhun Yu
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 106 91 Stockholm, Sweden
| | - Abraham Mendoza
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 106 91 Stockholm, Sweden
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311
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Sun W, Peng C, Yao Z, Xu F. Diastereoselective synthesis of α-dicarbonyl cyclopropanes via a lanthanide amide-catalysed reaction. Org Biomol Chem 2019; 17:6620-6628. [PMID: 31232412 DOI: 10.1039/c9ob00732f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lanthanide bis(trimethylsilyl)amides, [(Me3Si)2N]3Ln(μ-Cl)Li(THF)3, were used as efficient catalysts for a one-pot reaction of α-ketoesters, dialkyl phosphite, and activated alkenes to produce α-dicarbonyl cyclopropanes in moderate to high yields. The reaction was stereoselective and the two adjacent carbonyls linked to the cyclopropane were in the cis-configuration. The high efficiency of the lanthanide amide in catalysing the reaction is the result of the cooperation between the lanthanide metal centre and the N(SiMe3)2 anion.
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Affiliation(s)
- Wenxi Sun
- Key Laboratory of Organic Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Cheng Peng
- Key Laboratory of Organic Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Zhigang Yao
- Key Laboratory of Organic Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Fan Xu
- Key Laboratory of Organic Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
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312
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Song L, Tian X, Rudolph M, Rominger F, Hashmi ASK. Gold(iii)-catalyzed chemoselective annulations of anthranils with N-allylynamides for the synthesis of 3-azabicyclo[3.1.0]hexan-2-imines. Chem Commun (Camb) 2019; 55:9007-9010. [PMID: 31290870 DOI: 10.1039/c9cc04027g] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We herein report the gold(iii)-catalyzed selective annulation of anthranils with N-allylynamides under mild conditions. By trapping the in situ-generated α-imino gold carbenes, 3-azabicyclo[3.1.0]hexan-2-imines were obtained in high synthetic efficiency. The reaction, which can be conducted in the gram scale, tolerates electron-rich and electron-deficient anthranils as well as a diverse set of functionalized ynamides (aryl- and alkyl-substituted terminal).
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Affiliation(s)
- Lina Song
- Institute of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.
| | - Xianhai Tian
- Institute of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.
| | - Matthias Rudolph
- Institute of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.
| | - Frank Rominger
- Institute of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.
| | - A Stephen K Hashmi
- Institute of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany. and Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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313
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Khatri Chhetri B, Lavoie S, Sweeney-Jones AM, Mojib N, Raghavan V, Gagaring K, Dale B, McNamara CW, Soapi K, Quave CL, Polavarapu PL, Kubanek J. Peyssonnosides A-B, Unusual Diterpene Glycosides with a Sterically Encumbered Cyclopropane Motif: Structure Elucidation Using an Integrated Spectroscopic and Computational Workflow. J Org Chem 2019; 84:8531-8541. [PMID: 31244158 PMCID: PMC6614789 DOI: 10.1021/acs.joc.9b00884] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Indexed: 11/30/2022]
Abstract
Two sulfated diterpene glycosides featuring a highly substituted and sterically encumbered cyclopropane ring have been isolated from the marine red alga Peyssonnelia sp. Combination of a wide array of 2D NMR spectroscopic experiments, in a systematic structure elucidation workflow, revealed that peyssonnosides A-B (1-2) represent a new class of diterpene glycosides with a tetracyclo [7.5.0.01,10.05,9] tetradecane architecture. A salient feature of this workflow is the unique application of quantitative interproton distances obtained from the rotating frame Overhauser effect spectroscopy (ROESY) NMR experiment, wherein the β-d-glucose moiety of 1 was used as an internal probe to unequivocally determine the absolute configuration, which was also supported by optical rotatory dispersion (ORD). Peyssonnoside A (1) exhibited promising activity against liver stage Plasmodium berghei and moderate antimethicillin-resistant Staphylococcus aureus (MRSA) activity, with no cytotoxicity against human keratinocytes. Additionally, 1 showed strong growth inhibition of the marine fungus Dendryphiella salina indicating an antifungal ecological role in its natural environment. The high natural abundance and novel carbon skeleton of 1 suggests a rare terpene cyclase machinery, exemplifying the chemical diversity in this phylogenetically distinct marine red alga.
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Affiliation(s)
- Bhuwan Khatri Chhetri
- School
of Chemistry and Biochemistry, Aquatic Chemical Ecology Center, and School of Biological
Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Serge Lavoie
- School
of Chemistry and Biochemistry, Aquatic Chemical Ecology Center, and School of Biological
Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Institut
des Sciences de la Forêt Tempérée, Université du Québec en Outaouais, 58, rue Principale, Ripon, Québec J0V 1V0, Canada
| | - Anne Marie Sweeney-Jones
- School
of Chemistry and Biochemistry, Aquatic Chemical Ecology Center, and School of Biological
Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Nazia Mojib
- School
of Chemistry and Biochemistry, Aquatic Chemical Ecology Center, and School of Biological
Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Vijay Raghavan
- Department
of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Kerstin Gagaring
- Calibr
at
The Scripps Research Institute, La Jolla, California 92037, United States
| | - Brandon Dale
- Department
of Dermatology, Center for the Study of Human Health, and Antibiotic
Resistance Center, Emory University, Atlanta, Georgia 30322, United States
| | - Case W. McNamara
- Calibr
at
The Scripps Research Institute, La Jolla, California 92037, United States
| | - Katy Soapi
- Institute
of Applied Sciences, University of South
Pacific, Suva, Fiji
| | - Cassandra L. Quave
- Department
of Dermatology, Center for the Study of Human Health, and Antibiotic
Resistance Center, Emory University, Atlanta, Georgia 30322, United States
| | - Prasad L. Polavarapu
- Department
of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Julia Kubanek
- School
of Chemistry and Biochemistry, Aquatic Chemical Ecology Center, and School of Biological
Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Parker
H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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314
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Chen D, Fu Y, Cao X, Luo J, Wang F, Huang S. Metal-Free Cyclopropanol Ring-Opening C(sp3)–C(sp2) Cross-Couplings with Aryl Sulfoxides. Org Lett 2019; 21:5600-5605. [DOI: 10.1021/acs.orglett.9b01908] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dengfeng Chen
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Yuanyuan Fu
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Xiaoji Cao
- College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, Zhejiang 310014, P. R. China
| | - Jinyue Luo
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Fei Wang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Shenlin Huang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
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315
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Zhang J, Hazra CK, Park S, Chang S. Metal‐Free Carbocyclization of Homoallylic Silyl Ethers Leading to Cyclopropanes and Cyclobutanes. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900270] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jianbo Zhang
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 South Korea
- Department of ChemistryKorea Advanced Institute of Science & Technology (KAIST) Daejeon 34141 South Korea
| | - Chinmoy Kumar Hazra
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 South Korea
- Department of ChemistryKorea Advanced Institute of Science & Technology (KAIST) Daejeon 34141 South Korea
| | - Sehoon Park
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 South Korea
- Department of ChemistryKorea Advanced Institute of Science & Technology (KAIST) Daejeon 34141 South Korea
| | - Sukbok Chang
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 South Korea
- Department of ChemistryKorea Advanced Institute of Science & Technology (KAIST) Daejeon 34141 South Korea
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316
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Li Z, Zhang M, Zhang Y, Liu S, Zhao J, Zhang Q. Multicomponent Cyclopropane Synthesis Enabled by Cu-Catalyzed Cyclopropene Carbometalation with Organoboron Reagent: Enantioselective Modular Access to Polysubstituted 2-Arylcyclopropylamines. Org Lett 2019; 21:5432-5437. [DOI: 10.1021/acs.orglett.9b01650] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Zhanyu Li
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Mengru Zhang
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yu Zhang
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Shuang Liu
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jinbo Zhao
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Qian Zhang
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, 345 Lingling Lu, Shanghai 200032, China
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317
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Shi Y, Gao Q, Xu S. Chiral Bidentate Boryl Ligand Enabled Iridium-Catalyzed Enantioselective C(sp3)–H Borylation of Cyclopropanes. J Am Chem Soc 2019; 141:10599-10604. [DOI: 10.1021/jacs.9b04549] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yongjia Shi
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qian Gao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Senmiao Xu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
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318
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Ouyang Y, Zhan M, Zhou J, Jiao J, Hu H, Yamada YMA, Li P. Z‐bpy, a New
C
2
‐Symmetric Bipyridine Ligand and Its Application in Enantioselective Copper(I)‐Catalyzed Cyclopropanation of Olefins. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900141] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yizhao Ouyang
- Frontier Institute of Science and Technology, Xi’an Jiaotong University Xi’an, Shaanxi 710054 China
| | - Miao Zhan
- Frontier Institute of Science and Technology, Xi’an Jiaotong University Xi’an, Shaanxi 710054 China
| | - Jing Zhou
- Frontier Institute of Science and Technology, Xi’an Jiaotong University Xi’an, Shaanxi 710054 China
| | - Jiao Jiao
- Department of Applied ChemistrySchool of Science, Xi’an Jiaotong University Xi’an, Shaanxi 710049 China
- Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Xi’an Jiaotong University Xi’an, Shaanxi 710049 China
| | - Hao Hu
- RIKEN Center for Sustainable Resource Science Wako, Saitama 3510198 Japan
| | | | - Pengfei Li
- Frontier Institute of Science and Technology, Xi’an Jiaotong University Xi’an, Shaanxi 710054 China
- Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Xi’an Jiaotong University Xi’an, Shaanxi 710049 China
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319
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Petzold D, Singh P, Almqvist F, König B. Visible‐Light‐Mediated Synthesis of β‐Chloro Ketones from Aryl Cyclopropanes. Angew Chem Int Ed Engl 2019; 58:8577-8580. [DOI: 10.1002/anie.201902473] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Daniel Petzold
- Department of Organic ChemistryUniversity of Regensburg Universitätsstraße 31 93053 Regensburg Germany
| | - Pardeep Singh
- Department of ChemistryUmeå University, KB.C4 Linnaeus väg 10 901 87 Umeå Sweden
| | - Fredrik Almqvist
- Department of ChemistryUmeå University, KB.C4 Linnaeus väg 10 901 87 Umeå Sweden
| | - Burkhard König
- Department of Organic ChemistryUniversity of Regensburg Universitätsstraße 31 93053 Regensburg Germany
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320
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Petzold D, Singh P, Almqvist F, König B. Durch sichtbares Licht vermittelte Synthese von β‐Chlorketonen aus Arylcyclopropanen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Daniel Petzold
- Institut für Organische ChemieRegensburg Universität Universitätsstraße 31 93053 Regensburg Deutschland
| | - Pardeep Singh
- Department of ChemistryUmeå University KB.C4, Linnaeus väg 10 901 87 Umeå Schweden
| | - Fredrik Almqvist
- Department of ChemistryUmeå University KB.C4, Linnaeus väg 10 901 87 Umeå Schweden
| | - Burkhard König
- Institut für Organische ChemieRegensburg Universität Universitätsstraße 31 93053 Regensburg Deutschland
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321
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Dey A, Thrimurtulu N, Volla CMR. Cobalt-Catalyzed Annulation Reactions of Alkylidenecyclopropanes: Access to Spirocyclopropanes at Room Temperature. Org Lett 2019; 21:3871-3875. [DOI: 10.1021/acs.orglett.9b01392] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Arnab Dey
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Neetipalli Thrimurtulu
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Chandra M. R. Volla
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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322
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Xu Y, Wang M, Wei D, Tian R, Duan Z, Mathey F. An approach to 7-aza-1-phosphanorbornane complexes: strain promoted rearrangement of 1-iminylphosphirane complexes and cycloaddition with olefins. Dalton Trans 2019; 48:5523-5526. [PMID: 30973566 DOI: 10.1039/c9dt00838a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1-Iminylphosphirane W(CO)5 complexes react with alkenes under an atmosphere of CO at 130 °C to form the original 7-aza-1-phosphanorbornane complexes. The reaction works well with both electron-rich and electron-poor alkenes. On the basis of DFT calculations, we propose a mechanism including the rearrangement of phosphirane into a dipolar five-membered ring and the following cycloaddition of this dipolar intermediate with alkenes.
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Affiliation(s)
- Yang Xu
- College of Chemistry and Molecular Engineering, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, P. R. China.
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323
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Montesinos‐Magraner M, Costantini M, Ramírez‐Contreras R, Muratore ME, Johansson MJ, Mendoza A. General Cyclopropane Assembly by Enantioselective Transfer of a Redox‐Active Carbene to Aliphatic Olefins. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814123] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | - Matteo Costantini
- Dept. of Organic ChemistryStockholm University, Arrhenius Laboratory 10691 Stockholm Sweden
| | | | - Michael E. Muratore
- Cardiovascular, Renal and Metabolism IMED Biotech UnitAstraZeneca Gothenburg 43183 Mölndal Sweden
| | - Magnus J. Johansson
- Cardiovascular, Renal and Metabolism IMED Biotech UnitAstraZeneca Gothenburg 43183 Mölndal Sweden
| | - Abraham Mendoza
- Dept. of Organic ChemistryStockholm University, Arrhenius Laboratory 10691 Stockholm Sweden
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324
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Murai M, Taniguchi R, Mizuta C, Takai K. Chromium-Mediated Stannylcyclopropanation of Alkenes with (Diiodomethyl)stannanes. Org Lett 2019; 21:2668-2672. [PMID: 30946593 DOI: 10.1021/acs.orglett.9b00658] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A stannyl-group-substituted gem-dichromiomethane species, generated in situ from CrCl2, TMEDA, and tributyl(diiodomethyl)stannane, worked as an efficient stannylcarbene equivalent to promote cyclopropanation of alkenes. The reaction provided synthetically useful stannylcyclopropanes directly from commercially available unactivated alkenes without using potentially flammable alkylzinc and diazo compounds. Structural characterization of stannyl- and germyl-group-substituted gem-dichromiomethane complexes and the effect of group 14 elements containing substituents for cyclopropanation are also described.
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Affiliation(s)
- Masahito Murai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , 3-1-1 Tsushimanaka , Kita-ku , Okayama 700-8530 , Japan
| | - Ryuji Taniguchi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , 3-1-1 Tsushimanaka , Kita-ku , Okayama 700-8530 , Japan
| | - Chisato Mizuta
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , 3-1-1 Tsushimanaka , Kita-ku , Okayama 700-8530 , Japan
| | - Kazuhiko Takai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , 3-1-1 Tsushimanaka , Kita-ku , Okayama 700-8530 , Japan
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325
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Ghorai J, Anbarasan P. Metal-Free Directed Diastereoselective C2,C3-Cyclopropanation of Substituted Indoles with Diazoesters. Org Lett 2019; 21:3431-3435. [DOI: 10.1021/acs.orglett.9b01197] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jayanta Ghorai
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Pazhamalai Anbarasan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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326
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Phipps EJT, Rovis T. Rh(III)-Catalyzed C-H Activation-Initiated Directed Cyclopropanation of Allylic Alcohols. J Am Chem Soc 2019; 141:6807-6811. [PMID: 30998324 DOI: 10.1021/jacs.9b02156] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We have developed a Rh(III)-catalyzed diastereoselective [2+1] annulation onto allylic alcohols initiated by alkenyl C-H activation of N-enoxyphthalimides to furnish substituted cyclopropyl-ketones. Notably, the traceless oxyphthalimide handle serves three functions: directing C-H activation, oxidation of Rh(III), and, collectively with the allylic alcohol, in directing cyclopropanation to control diastereoselectivity. Allylic alcohols are shown to be highly reactive olefin coupling partners leading to a directed diastereoselective cyclopropanation reaction, providing products not accessible by other routes.
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Affiliation(s)
- Erik J T Phipps
- Department of Chemistry , Columbia University , New York , New York 10027 , United States
| | - Tomislav Rovis
- Department of Chemistry , Columbia University , New York , New York 10027 , United States
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327
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Andersen C, Ferey V, Daumas M, Bernardelli P, Guérinot A, Cossy J. Introduction of Cyclopropyl and Cyclobutyl Ring on Alkyl Iodides through Cobalt-Catalyzed Cross-Coupling. Org Lett 2019; 21:2285-2289. [PMID: 30896173 DOI: 10.1021/acs.orglett.9b00579] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A cobalt-catalyzed cross-coupling between alkyl iodides and cyclopropyl, cyclobutyl, and alkenyl Grignard reagents is disclosed. The reaction allows the introduction of strained rings on a large panel of primary and secondary alkyl iodides. The catalytic system is simple and nonexpensive, and the reaction is general, chemoselective, and diastereoconvergent. The alkene resulting from the cross-coupling can be transformed to substituted cyclopropanes using a Simmons-Smith reaction. The formation of radical intermediates during the coupling is hypothesized.
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Affiliation(s)
- Claire Andersen
- Molecular, Macromolecular Chemistry and Materials , ESPCI Paris, CNRS, PSL University , 10 rue Vauquelin , 75005 Paris , France
| | - Vincent Ferey
- Sanofi R&D , 371 rue du professeur Joseph Blayac , 34080 Montpellier , France
| | - Marc Daumas
- Sanofi Chimie , Route d'Avignon , 30390 Aramon , France
| | | | - Amandine Guérinot
- Molecular, Macromolecular Chemistry and Materials , ESPCI Paris, CNRS, PSL University , 10 rue Vauquelin , 75005 Paris , France
| | - Janine Cossy
- Molecular, Macromolecular Chemistry and Materials , ESPCI Paris, CNRS, PSL University , 10 rue Vauquelin , 75005 Paris , France
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328
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Inuki S, Fujimoto Y. Total synthesis of naturally occurring chiral cyclopropane fatty acids and related compounds. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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329
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Duchemin C, Cramer N. Chiral cyclopentadienyl Rh III-catalyzed enantioselective cyclopropanation of electron-deficient olefins enable rapid access to UPF-648 and oxylipin natural products. Chem Sci 2019; 10:2773-2777. [PMID: 30996996 PMCID: PMC6419935 DOI: 10.1039/c8sc05702h] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 01/15/2019] [Indexed: 12/19/2022] Open
Abstract
Chiral cyclopentadienyl RhIII complexes efficiently catalyze enantioselective cyclopropanations of electron-deficient olefins with N-enoxysuccinimides as the C1 unit. Excellent asymmetric inductions and high diastereoselectivities can be obtained for a wide range of substrate combinations. The reaction proceeds under mild conditions without precautions to exclude air and water. Moreover, the synthetic utility of the developed method is demonstrated by concise syntheses of members of the oxylipin natural products family and the KMO inhibitor UPF-648.
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Affiliation(s)
- Coralie Duchemin
- Laboratory of Asymmetric Catalysis and Synthesis , EPFL SB ISIC LCSA , BCH 4305 , CH-1015 Lausanne , Switzerland .
| | - Nicolai Cramer
- Laboratory of Asymmetric Catalysis and Synthesis , EPFL SB ISIC LCSA , BCH 4305 , CH-1015 Lausanne , Switzerland .
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330
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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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331
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Amenós L, Trulli L, Nóvoa L, Parra A, Tortosa M. Stereospecific Synthesis of α-Hydroxy-Cyclopropylboronates from Allylic Epoxides. Angew Chem Int Ed Engl 2019; 58:3188-3192. [PMID: 30600867 DOI: 10.1002/anie.201812836] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/20/2018] [Indexed: 11/11/2022]
Abstract
Herein, we report a catalytic and stereospecific method for the preparation of enantioenriched α-hydroxy cyclopropylboronates with control in four contiguous stereocenters. The reaction involves the borylation of readily available allylic epoxides using an inexpensive Cu(I) salt and a commercially available phosphine ligand. High diastereocontrol is achieved and different diastereomers can be selectively prepared. Functionalization of the carbon-boron bond provides access to different enantiomerically enriched trisubstituted cyclopropanes from a common intermediate.
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Affiliation(s)
- Laura Amenós
- Organic Chemistry Department, Institute for Advance Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Laura Trulli
- Organic Chemistry Department, Institute for Advance Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Luis Nóvoa
- Organic Chemistry Department, Institute for Advance Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Alejandro Parra
- Organic Chemistry Department, Institute for Advance Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Mariola Tortosa
- Organic Chemistry Department, Institute for Advance Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain
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332
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Alkylthio(4-methylpent-3-en-1-ynyl)carbenes: generation by the photolysis of 5-alkylthioethynyl-3,3-dimethyl-3H-pyrazoles and reactions with alkenes. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.03.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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333
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Ismiyev AI, Potekhin KA, Maleev AV, Askerov RK, Maharramov AM. Synthesis, Molecular and Crystal Structure of Ethyl 5-Cyano-2-(Dicyanomethyl)-2-Methyl-4-Oxo-6-Phenyl-3-Azabicyclo[3.1.0]Hexane-1-Carboxylate. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619030181] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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334
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Montesinos-Magraner M, Costantini M, Ramírez-Contreras R, Muratore ME, Johansson MJ, Mendoza A. General Cyclopropane Assembly by Enantioselective Transfer of a Redox-Active Carbene to Aliphatic Olefins. Angew Chem Int Ed Engl 2019; 58:5930-5935. [PMID: 30675970 DOI: 10.1002/anie.201814123] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Indexed: 12/30/2022]
Abstract
Asymmetric cyclopropane synthesis currently requires bespoke strategies, methods, substrates, and reagents, even when targeting similar compounds. This approach slows down discovery and limits available chemical space. Introduced herein is a practical and versatile diazocompound and its performance in the first unified asymmetric synthesis of functionalized cyclopropanes. The redox-active leaving group in this reagent enhances the reactivity and selectivity of geminal carbene transfer. This effect allowed the asymmetric cyclopropanation of various olefins, including unfunctionalized aliphatic alkenes, that enables the three-step total synthesis of (-)-dictyopterene A. This unified synthetic approach delivers high enantioselectivities that are independent of the stereoelectronic properties of the functional groups transferred. Our results demonstrate that orthogonally differentiated diazocompounds are viable and advantageous equivalents of single-carbon chirons.
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Affiliation(s)
- Marc Montesinos-Magraner
- Dept. of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 10691, Stockholm, Sweden
| | - Matteo Costantini
- Dept. of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 10691, Stockholm, Sweden
| | | | - Michael E Muratore
- Cardiovascular, Renal and Metabolism IMED Biotech Unit, AstraZeneca Gothenburg, 43183, Mölndal, Sweden
| | - Magnus J Johansson
- Cardiovascular, Renal and Metabolism IMED Biotech Unit, AstraZeneca Gothenburg, 43183, Mölndal, Sweden
| | - Abraham Mendoza
- Dept. of Organic Chemistry, Stockholm University, Arrhenius Laboratory, 10691, Stockholm, Sweden
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335
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Liu X, Liu J, Wu J, Huang G, Liang R, Chung LW, Li CC. Asymmetric Total Synthesis of Cerorubenic Acid-III. J Am Chem Soc 2019; 141:2872-2877. [PMID: 30721058 DOI: 10.1021/jacs.8b12647] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The first asymmetric total synthesis of the highly strained compound cerorubenic acid-III is reported. A type II intramolecular [5 + 2] cycloaddition allowed efficient and diastereoselective construction of the synthetically challenging bicyclo[4.4.1] ring system with a strained bridgehead (anti-Bredt) double bond in the final product. A unique transannular cyclization installed the vinylcyclopropane moiety with retention of the desired stereochemistry.
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Affiliation(s)
- Xin Liu
- Shenzhen Grubbs Institute, Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China.,Institute of Chinese Medical Sciences , University of Macau , Macau , China
| | - Junyang Liu
- Shenzhen Grubbs Institute, Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China.,Academy for Advanced Interdisciplinary Studies , Southern University of Science and Technology (SUSTech) , Shenzhen 518055 , China
| | - Jianlei Wu
- Shenzhen Grubbs Institute, Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Guocheng Huang
- Shenzhen Grubbs Institute, Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Rong Liang
- Shenzhen Grubbs Institute, Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Lung Wa Chung
- Shenzhen Grubbs Institute, Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute, Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
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336
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Mato M, Echavarren AM. Donor Rhodium Carbenes by Retro-Buchner Reaction. Angew Chem Int Ed Engl 2019; 58:2088-2092. [PMID: 30561881 DOI: 10.1002/anie.201813512] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Indexed: 01/15/2023]
Abstract
Rhodium carbenes are key intermediates in a range of cycloadditions and insertion reactions. Herein, we report the first generation of donor RhII carbenes by decarbenation of 7-substituted 1,3,5-cycloheptatrienes. This discovery unlocks an improved retro-Buchner-cyclopropanation sequence, a Si-H insertion reaction for a broad-scope synthesis of allylsilanes, and a new method for the vinylogation of aldehydes. The last strategy led to the development of an iterative synthesis of E-polyenes, and to the total synthesis of navenones B and C.
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Affiliation(s)
- Mauro Mato
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/ Marcel⋅li Domingo s/n, 43007, Tarragona, Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/ Marcel⋅li Domingo s/n, 43007, Tarragona, Spain
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337
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Affiliation(s)
- Mauro Mato
- Institute of Chemical Research of Catalonia (ICIQ); Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica; Universitat Rovira i Virgili; C/ Marcel⋅li Domingo s/n 43007 Tarragona Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ); Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica; Universitat Rovira i Virgili; C/ Marcel⋅li Domingo s/n 43007 Tarragona Spain
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338
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Wu SY, Chen WL, Ma XP, Liang C, Su GF, Mo DL. Copper-Catalyzed [3+2] Cycloaddition and Interrupted Fischer Indolization to Prepare Polycyclic Furo[2,3-b]indolines from N
-Aryl Isatin Nitrones and Methylenecyclopropanes. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801327] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Si-Yi Wu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Education of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004 People's Republic of China
| | - Wei-Li Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Education of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004 People's Republic of China
| | - Xiao-Pan Ma
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Education of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004 People's Republic of China
| | - Cui Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Education of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004 People's Republic of China
| | - Gui-Fa Su
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Education of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004 People's Republic of China
| | - Dong-Liang Mo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Education of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004 People's Republic of China
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339
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Amenós L, Trulli L, Nóvoa L, Parra A, Tortosa M. Stereospecific Synthesis of α‐Hydroxy‐Cyclopropylboronates from Allylic Epoxides. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812836] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Laura Amenós
- Organic Chemistry DepartmentInstitute for Advance Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Laura Trulli
- Organic Chemistry DepartmentInstitute for Advance Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Luis Nóvoa
- Organic Chemistry DepartmentInstitute for Advance Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Alejandro Parra
- Organic Chemistry DepartmentInstitute for Advance Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Mariola Tortosa
- Organic Chemistry DepartmentInstitute for Advance Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid 28049 Madrid Spain
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340
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341
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Li H, Zhang M, Mehfooz H, Zhu D, Zhao J, Zhang Q. Highly convergent modular access to poly-carbon substituted cyclopropanes via Cu(i)-catalyzed three-component cyclopropene carboallylation. Org Chem Front 2019. [DOI: 10.1039/c9qo00902g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The first conjunctive C–C cross-coupling of cyclopropenes is realized by a Cu-catalyzed three-component reaction with an organoboron reagent and allylic electrophiles, featuring a modular, stereoselective assembly of poly-carbon substituted cyclopropanes.
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Affiliation(s)
- Hexin Li
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun
- 130024 P. R. China
| | - Mengru Zhang
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun
- 130024 P. R. China
| | - Haroon Mehfooz
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun
- 130024 P. R. China
| | - Dongxia Zhu
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun
- 130024 P. R. China
| | - Jinbo Zhao
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun
- 130024 P. R. China
| | - Qian Zhang
- Jilin Province Key Laboratory of Functional Organic Molecule Design & Synthesis
- Department of Chemistry
- Northeast Normal University
- Changchun
- 130024 P. R. China
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342
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Chen S, Zhang J, Yang M, Liu F, Xie Z, Liu Y, Lin W, Wang D, Li X, Wang J. Diastereoselective synthesis of cyclopropanes bearing trifluoromethyl-substituted all-carbon quaternary centers from 2-trifluoromethyl-1,3-enynes beyond fluorine elimination. Chem Commun (Camb) 2019; 55:3879-3882. [DOI: 10.1039/c9cc00785g] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Highly diastereoselective cyclopropanations of trifluoromethylenynes with sulfur ylides deliver cyclopropanes bearing trifluoromethyl-substituted all-carbon quaternary centers.
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Affiliation(s)
- Shujie Chen
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
- Key Laboratory of Functional Molecular Engineering of Guangdong Province (South China University of Technology)
| | - Jinhui Zhang
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Mingfeng Yang
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Fenggang Liu
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Zhipeng Xie
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Yunlin Liu
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Wenxia Lin
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Daru Wang
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Xiangrui Li
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Jiahai Wang
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
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343
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Keipour H, Jalba A, Tanbouza N, Carreras V, Ollevier T. α-Thiocarbonyl synthesisviathe FeII-catalyzed insertion reaction of α-diazocarbonyls into S–H bonds. Org Biomol Chem 2019; 17:3098-3102. [DOI: 10.1039/c9ob00261h] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fe(OTf)2was used to catalyze the insertion reaction of α-diazocarbonyls into S–H bonds at 40 °C.
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Affiliation(s)
- Hoda Keipour
- Département de chimie
- Université Laval
- Québec
- Canada
| | - Angela Jalba
- Département de chimie
- Université Laval
- Québec
- Canada
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344
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Liu C, Yang YJ, Dong JY, Zhou MD, Li L, Wang H. Visible-light-promoted hydroxysulfonylation of alkylidenecyclopropanes: synthesis of cyclopropane-containing β-hydroxysulfones. Org Chem Front 2019. [DOI: 10.1039/c9qo01058k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cyclopropane-containing β-hydroxysulfones and cyclopropyl styrenes have been synthesised from readily available ACPs and sulfuryl chloride via visible-light photoredox catalysis.
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Affiliation(s)
- Chuang Liu
- School of Chemistry and Materials Science
- Liaoning Shihua University
- Fushun 113001
- P. R. China
| | - Yan-Jie Yang
- School of Chemistry and Materials Science
- Liaoning Shihua University
- Fushun 113001
- P. R. China
| | - Jun-Ying Dong
- School of Chemistry and Materials Science
- Liaoning Shihua University
- Fushun 113001
- P. R. China
| | - Ming-Dong Zhou
- School of Chemistry and Materials Science
- Liaoning Shihua University
- Fushun 113001
- P. R. China
| | - Lei Li
- School of Chemistry and Materials Science
- Liaoning Shihua University
- Fushun 113001
- P. R. China
| | - He Wang
- School of Chemistry and Materials Science
- Liaoning Shihua University
- Fushun 113001
- P. R. China
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345
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Zhang GP, Huang S, Jiang YJ, Liu XY, Ding CH, Wei Y, Hou XL. Pd-catalyzed enantioselective cyclopropanation of nitriles with mono substituted allyl carbonates enabled by the bulky N-heterocyclic carbene ligand. Chem Commun (Camb) 2019; 55:6449-6452. [DOI: 10.1039/c9cc01960j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Enantioselective cyclopropanation of nitriles with allyl reagents was realized using Pd/NHC as a catalyst and the reasons for the cyclopropanation were investigated.
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Affiliation(s)
- Gao-Peng Zhang
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences (SIOC)
- China
| | - Shuai Huang
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences (SIOC)
- China
| | - Yang-Jie Jiang
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences (SIOC)
- China
| | - Xiu-Yan Liu
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences (SIOC)
- China
| | - Chang-Hua Ding
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences (SIOC)
- China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences (SIOC)
- China
| | - Xue-Long Hou
- State Key Laboratory of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences (SIOC)
- China
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346
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Arupula SK, Gudimella SK, Guin S, Mobin SM, Samanta S. Chemoselective cyclization of N-sulfonyl ketimines with ethenesulfonyl fluorides: access to trans-cyclopropanes and fused-dihydropyrroles. Org Biomol Chem 2019; 17:3451-3461. [DOI: 10.1039/c9ob00433e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A stereo- and chemoselective ring closing reaction of N-sulfonyl ketimines with ethene sulfonyl fluorides promoted by DBU is reported. This selective C–C vs. C–N bond cyclization process delivers to trans-cyclopropanes (dr up to ≤99 : 1) and fused-dihydropyrroles.
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Affiliation(s)
| | | | - Soumitra Guin
- Discipline of Chemistry
- Indian Institute of Technology Indore
- 453552, Indore
- India
| | - Shaikh M. Mobin
- Discipline of Chemistry
- Indian Institute of Technology Indore
- 453552, Indore
- India
| | - Sampak Samanta
- Discipline of Chemistry
- Indian Institute of Technology Indore
- 453552, Indore
- India
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347
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Epp K, Bueken B, Hofmann BJ, Cokoja M, Hemmer K, De Vos D, Fischer RA. Network topology and cavity confinement-controlled diastereoselectivity in cyclopropanation reactions catalyzed by porphyrin-based MOFs. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00893d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
In this work, we show that the stereoselectivity of a reaction can be controlled by directing groups of substrates, by network topology and by local cavity confinement of metal–organic framework (MOF) catalysts.
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Affiliation(s)
- Konstantin Epp
- Chair of Inorganic and Metal-Organic Chemistry
- Catalysis Research Center and Department of Chemistry
- Technical University of Munich
- D-85748 Garching bei München
- Germany
| | - Bart Bueken
- Centre for Surface Chemistry and Catalysis
- Department of Microbial and Molecular Systems (M2S)
- KU Leuven
- 3001 Leuven
- Belgium
| | - Benjamin J. Hofmann
- Molecular Catalysis
- Catalysis Research Center and Department of Chemistry
- Technical University of Munich
- D-85748 Garching bei München
- Germany
| | - Mirza Cokoja
- Chair of Inorganic and Metal-Organic Chemistry
- Catalysis Research Center and Department of Chemistry
- Technical University of Munich
- D-85748 Garching bei München
- Germany
| | - Karina Hemmer
- Chair of Inorganic and Metal-Organic Chemistry
- Catalysis Research Center and Department of Chemistry
- Technical University of Munich
- D-85748 Garching bei München
- Germany
| | - Dirk De Vos
- Centre for Surface Chemistry and Catalysis
- Department of Microbial and Molecular Systems (M2S)
- KU Leuven
- 3001 Leuven
- Belgium
| | - Roland A. Fischer
- Chair of Inorganic and Metal-Organic Chemistry
- Catalysis Research Center and Department of Chemistry
- Technical University of Munich
- D-85748 Garching bei München
- Germany
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348
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349
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Yasui M, Ota R, Tsukano C, Takemoto Y. Synthesis of cis-/All- cis-Substituted Cyclopropanes through Stereocontrolled Metalation and Pd-Catalyzed Negishi Coupling. Org Lett 2018; 20:7656-7660. [PMID: 30462517 DOI: 10.1021/acs.orglett.8b03390] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We have developed a direct method for the synthesis of cis-substituted cyclopropanes from a cyclopropanecarboxamide through stereocontrolled metalation and Negishi coupling. Under the optimized reaction conditions, various substituents, including di/trisubstituted alkenes and aryl groups, were introduced in a stereoselective manner using a simple amide directing group that could subsequently be converted into an ester. Furthermore, this method was applicable to the synthesis of all- cis-substituted cyclopropanes bearing three different substituents, which are highly congested and strained molecules.
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Affiliation(s)
- Motohiro Yasui
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
| | - Rina Ota
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
| | - Chihiro Tsukano
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
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350
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Zhang PC, Wang Y, Zhang ZM, Zhang J. Gold(I)/Xiang-Phos-Catalyzed Asymmetric Intramolecular Cyclopropanation of Indenes and Trisubstituted Alkenes. Org Lett 2018; 20:7049-7052. [PMID: 30371087 DOI: 10.1021/acs.orglett.8b02999] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The first intramolecular enantioselective cyclopropanation of indenes and trisubstituted alkenes was accomplished by using new chiral phosphine X5 derived gold(I) complexes. This reaction is a straightforward, efficient method for constructing [5-3-6] fused-ring compounds with two vicinal all-carbon quaternary stereogenic centers, a core structure shared by numerous pharmacological products, and bioactive compounds. The salient features of this transformation include high enantioselectivity (up to >98% ee), excellent yield (>97%), and nice functional group tolerance.
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Affiliation(s)
- Pei-Chao Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry , East China Normal University , 3663 North Zhongshan Road , Shanghai 200062 , P. R. China
| | - Yidong Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry , East China Normal University , 3663 North Zhongshan Road , Shanghai 200062 , P. R. China
| | - Zhan-Ming Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry , East China Normal University , 3663 North Zhongshan Road , Shanghai 200062 , P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry , East China Normal University , 3663 North Zhongshan Road , Shanghai 200062 , P. R. China.,Department of Chemistry , Fudan University , 2005 Songhu Road , Shanghai 2000438 , P. R. China
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