1
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Boumekla Y, Xia F, Vidal L, Totée C, Raynaud C, Ouali A. Calcium-catalysed synthesis of amines through imine hydrosilylation: an experimental and theoretical study. Org Biomol Chem 2023; 21:1038-1045. [PMID: 36625298 DOI: 10.1039/d2ob02243e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A method to reduce aldimines through hydrosilylation is reported. The catalytic system involves calcium triflimide (Ca(NTf2)2) and potassium hexafluorophosphate (KPF6) which have been shown to act in a synergistic manner. The expected amines are obtained in fair to very high yields (40-99%) under mild conditions (room temperature in most cases). To illustrate the potential of this method, a bioactive molecule with antifungal properties was prepared on the gram scale and in high yield in environmentally friendly 2-methyltetrahydrofuran. Moreover, it is shown in this example that the imine can be prepared in situ from the aldehyde and the amine without isolating the imine. The mechanism involved has been explored experimentally and through DFT calculations, and the results are in accordance with an electrophilic activation of the silane by the calcium catalyst.
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Affiliation(s)
| | - Fengjie Xia
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - Lucas Vidal
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - Cédric Totée
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | | | - Armelle Ouali
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
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2
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Ghosh K, Das S. Recent advances in ring-opening of donor acceptor cyclopropanes using C-nucleophiles. Org Biomol Chem 2021; 19:965-982. [PMID: 33471020 DOI: 10.1039/d0ob02437f] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Ring-opening transformations of donor-acceptor cyclopropanes (DAC) with carbon-centered nucleophiles is a simple, straight-forward approach to 1,3-bifunctional compounds that has witnessed remarkable progress over the past several years. To date, different reactivity patterns of DACs have been successfully exploited in racemic/stereoselective syntheses of various acyclic compounds or carbocycles with an impressive structural diversity. The thriving strategies have been successfully utilized in multistep synthesis of complex target molecules. Herein, the recent advances (2015-present) in the ring-opening of DAC involving electron rich arenes and indoles, active methylene compounds, various dipolarophiles, organoborates/boronates, vinyl ethers etc. following Friedel-Crafts alkylation, annulation/formal cycloaddition reaction, organocatalytic reaction, Nazarov cyclisation etc. are presented.
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Affiliation(s)
- Koena Ghosh
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata 700 073, India.
| | - Subhomoy Das
- Department of Chemistry, Bar Ilan University, Ramat Gan 5290002, Israel
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3
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Wang D, Zhao J, Chen J, Xu Q, Li H. Intramolecular Arylative Ring Opening of Donor‐Acceptor Cyclopropanes in the Presence of Triflic Acid: Synthesis of 9
H
‐Fluorenes and 9,10‐Dihydrophenanthrenes. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900523] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Dongyang Wang
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou, Zhejiang 325035 China
| | - Jing Zhao
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou, Zhejiang 325035 China
| | - Jun Chen
- Beijing Institute of Microchemistry No.15 Xinjiangongmen Road, Haidian District Beijing 100091 China
| | - Qing Xu
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou, Zhejiang 325035 China
| | - Huan Li
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou, Zhejiang 325035 China
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4
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Lee J, Ko KM, Kim SG. Ni(ClO4
)2
-Catalyzed Friedel-Crafts Reaction of Coumarin-Fused Donor-Acceptor Cyclopropanes with Indoles: Stereoselective Synthesis of trans
-3,4-Disubstituted-3,4-dihydrocoumarins. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800669] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jusung Lee
- Department of Chemistry; Kyonggi University; 154-42 Gwanggyosan-ro,Yeongtong-gu, Suwon 16227 Republic of Korea
| | - Kwang Min Ko
- Department of Chemistry; Kyonggi University; 154-42 Gwanggyosan-ro,Yeongtong-gu, Suwon 16227 Republic of Korea
| | - Sung-Gon Kim
- Department of Chemistry; Kyonggi University; 154-42 Gwanggyosan-ro,Yeongtong-gu, Suwon 16227 Republic of Korea
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5
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Chang F, Lin L, Xia Y, Zhang H, Dong S, Liu X, Feng X. Chiral
N,N′
‐Dioxide/Sc
ΙΙΙ
Complex‐Catalyzed Asymmetric Ring‐Opening Reaction of Cyclopropyl Ketones with Indoles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800312] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Fenzhen Chang
- Key Laboratory of Green Chemistry&Technology, Ministry of Education, College of ChemistrySichuan University Chengdu 610064 People's Republic of China
| | - Lili Lin
- Key Laboratory of Green Chemistry&Technology, Ministry of Education, College of ChemistrySichuan University Chengdu 610064 People's Republic of China
| | - Yong Xia
- Key Laboratory of Green Chemistry&Technology, Ministry of Education, College of ChemistrySichuan University Chengdu 610064 People's Republic of China
| | - Hang Zhang
- Key Laboratory of Green Chemistry&Technology, Ministry of Education, College of ChemistrySichuan University Chengdu 610064 People's Republic of China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry&Technology, Ministry of Education, College of ChemistrySichuan University Chengdu 610064 People's Republic of China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry&Technology, Ministry of Education, College of ChemistrySichuan University Chengdu 610064 People's Republic of China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry&Technology, Ministry of Education, College of ChemistrySichuan University Chengdu 610064 People's Republic of China
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6
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Irwin LC, Renwick CR, Kerr MA. Nucleophilic Opening of Donor–Acceptor Cyclopropanes with Indoles via Hydrogen Bond Activation with 1,1,1,3,3,3-Hexafluoroisopropanol. J Org Chem 2018; 83:6235-6242. [DOI: 10.1021/acs.joc.8b00894] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Lauren C. Irwin
- Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Carling R. Renwick
- Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Michael A. Kerr
- Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7, Canada
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7
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Uno BE, Dicken RD, Redfern LR, Stern CM, Krzywicki GG, Scheidt KA. Calcium(ii)-catalyzed enantioselective conjugate additions of amines. Chem Sci 2018; 9:1634-1639. [PMID: 29675209 PMCID: PMC5887857 DOI: 10.1039/c7sc05205g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 12/15/2017] [Indexed: 02/04/2023] Open
Abstract
The direct enantioselective chiral calcium(ii)·phosphate complex (Ca[CPA]2)-catalyzed conjugate addition of unprotected alkyl amines to maleimides was developed.
The direct enantioselective chiral calcium(ii)·phosphate complex (Ca[CPA]2)-catalyzed conjugate addition of unprotected alkyl amines to maleimides was developed. This mild catalytic system represents a significant advance towards the general convergent asymmetric amination of α,β-unsaturated electrophiles, providing medicinally relevant chiral aminosuccinimide products in high yields and enantioselectivities. Furthermore, the catalyst can be reused directly from a previously chromatographed reaction and still maintain both high yield and selectivity.
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Affiliation(s)
- Brice E Uno
- Department of Chemistry , Center for Molecular Innovation and Drug Discovery , Northwestern University , 2145 Sheridan Rd , Evanston , IL 60208 , USA .
| | - Rachel D Dicken
- Department of Chemistry , Center for Molecular Innovation and Drug Discovery , Northwestern University , 2145 Sheridan Rd , Evanston , IL 60208 , USA .
| | - Louis R Redfern
- Department of Chemistry , Center for Molecular Innovation and Drug Discovery , Northwestern University , 2145 Sheridan Rd , Evanston , IL 60208 , USA .
| | - Charlotte M Stern
- Department of Chemistry , Center for Molecular Innovation and Drug Discovery , Northwestern University , 2145 Sheridan Rd , Evanston , IL 60208 , USA .
| | - Greg G Krzywicki
- Department of Chemistry , Center for Molecular Innovation and Drug Discovery , Northwestern University , 2145 Sheridan Rd , Evanston , IL 60208 , USA .
| | - Karl A Scheidt
- Department of Chemistry , Center for Molecular Innovation and Drug Discovery , Northwestern University , 2145 Sheridan Rd , Evanston , IL 60208 , USA .
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8
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Friedel-Crafts alkylation of benzo[b]furan with activated cyclopropanes catalyzed by a calcium(II) complex. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2017.10.064] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Ma H, Hu XQ, Luo YC, Xu PF. 3,4,5-Trimethylphenol and Lewis Acid Dual-Catalyzed Cascade Ring-Opening/Cyclization: Direct Synthesis of Naphthalenes. Org Lett 2017; 19:6666-6669. [DOI: 10.1021/acs.orglett.7b03392] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- He Ma
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiu-Qin Hu
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yong-Chun Luo
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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10
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Preindl J, Chakrabarty S, Waser J. Dearomatization of electron poor six-membered N-heterocycles through [3 + 2] annulation with aminocyclopropanes. Chem Sci 2017; 8:7112-7118. [PMID: 29147541 PMCID: PMC5637460 DOI: 10.1039/c7sc03197a] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 08/24/2017] [Indexed: 01/07/2023] Open
Abstract
Dearomative [3 + 2] annulation of N-heterocycles with donor–acceptor aminocyclopropanes: fast access to indolizidine building blocks.
Many abundant and highly bioactive natural alkaloids contain an indolizidine skeleton. A simple, high yielding method to synthesize this scaffold from N-heterocycles was developed. A wide range of pyridines, quinolines and isoquinolines reacted with donor–acceptor (DA)-aminocyclopropanes via an ytterbium(iii) catalyzed [3 + 2] annulation reaction to give tetrahydroindolizine derivatives. The products were obtained with high diastereoselectivities (dr > 20 : 1) as anti-isomers. Additionally, the formed aminals could be easily converted into secondary and tertiary amines through iminium formation followed by reduction or nucleophile addition. This transformation constitutes the first example of dearomatization of electron-poor six-membered heterocycles via [3 + 2] annulation with DA cyclopropanes.
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Affiliation(s)
- Johannes Preindl
- Laboratory of Catalysis and Organic Synthesis , Institut des Sciences et Ingénierie Chimiques , École Polytechnique Fédérale de Lausanne , CH-1015 Lausanne , Switzerland .
| | - Shyamal Chakrabarty
- Laboratory of Catalysis and Organic Synthesis , Institut des Sciences et Ingénierie Chimiques , École Polytechnique Fédérale de Lausanne , CH-1015 Lausanne , Switzerland .
| | - Jérôme Waser
- Laboratory of Catalysis and Organic Synthesis , Institut des Sciences et Ingénierie Chimiques , École Polytechnique Fédérale de Lausanne , CH-1015 Lausanne , Switzerland .
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11
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Luo YC, Ma H, Hu XQ, Xu PF. Sc(OTf)3 Catalyzed [4 + 2]-Annulation Reaction between Electron-Rich Phenols and Donor–Acceptor Cyclopropanes: Synthesis of Polysubstituted Dihydronaphthols. J Org Chem 2017; 82:1013-1023. [DOI: 10.1021/acs.joc.6b02566] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yong-Chun Luo
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu P. R. China, 730000
| | - He Ma
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu P. R. China, 730000
| | - Xiu-Qin Hu
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu P. R. China, 730000
| | - Peng-Fei Xu
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu P. R. China, 730000
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12
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Ortega V, G. Csákÿ A. Ring-Opening of Donor–Acceptor Cyclopropanes by Boronic Acids and Potassium Organotrifluoroborates under Transition-Metal-Free Conditions. J Org Chem 2016; 81:3917-23. [DOI: 10.1021/acs.joc.6b00320] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Víctor Ortega
- Instituto Pluridisciplinar, Universidad Complutense, Campus de
Excelencia Internacional Moncloa, 28040 Madrid, Spain
| | - Aurelio G. Csákÿ
- Instituto Pluridisciplinar, Universidad Complutense, Campus de
Excelencia Internacional Moncloa, 28040 Madrid, Spain
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13
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Tan E, Ung S, Corbet M. Microwave-Assisted Formylations of Weakly Basic Anilines with Methyl Formate Catalyzed by Calcium and Hydrogen Triflimides. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600226] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Talukdar R, Saha A, Tiwari DP, Ghorai MK. Ring opening of DA-cyclopropanes with electron rich arene/heteroarene: synthesis of 2-(2,2-diarylethyl)malonates. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.12.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Affiliation(s)
- Igor V. Trushkov
- Department of Chemistry; M. V. Lomonosov Moscow State University; Leninskie Gory 1-3 Moscow 119991 Russia
- Federal Research Center of Pediatric Hematology, Oncology and Immunology n.a. Dmitry Rogachev; Samory Mashela 1 Moscow 117997 Russia
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16
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Novikov RA, Potapov KV, Chistikov DN, Tarasova AV, Grigoriev MS, Timofeev VP, Tomilov YV. Synthesis and Structures of Cyclopropanedicarboxylate Gallium Complexes. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00399] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Roman A. Novikov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
- V. A. Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilov st., 119991 Moscow, Russian Federation
| | - Konstantin V. Potapov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
- Lomonosov Moscow State University, Faculty of Chemistry, 1-3 Leninskiye Gory, 119991 Moscow, Russian Federation
| | - Daniil N. Chistikov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
- Lomonosov Moscow State University, Faculty of Chemistry, 1-3 Leninskiye Gory, 119991 Moscow, Russian Federation
| | - Anna V. Tarasova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Michail S. Grigoriev
- Radiochemistry Department, A. N. Frumkin
Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 40 Obruchev st., 117342 Moscow, Russian Federation
| | - Vladimir P. Timofeev
- V. A. Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilov st., 119991 Moscow, Russian Federation
| | - Yury V. Tomilov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
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17
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Leboeuf D, Presset M, Michelet B, Bour C, Bezzenine-Lafollée S, Gandon V. Ca(II) -catalyzed alkenylation of alcohols with vinylboronic acids. Chemistry 2015; 21:11001-5. [PMID: 26133924 DOI: 10.1002/chem.201501677] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Indexed: 11/07/2022]
Abstract
Direct alkenylation of a variety of alcohols with vinylboronic acids has been accomplished using the air-stable calcium(II) complex Ca(NTf2 )2 under mild conditions with short reaction times. For reluctant transformations, an ammonium salt was used as an additive to circumvent the reactivity issue.
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Affiliation(s)
- David Leboeuf
- ICMMO (UMR CNRS 8182), Université Paris-Sud, Bâtiment 420, 91405 Orsay cedex (France)
| | - Marc Presset
- ICMMO (UMR CNRS 8182), Université Paris-Sud, Bâtiment 420, 91405 Orsay cedex (France)
| | - Bastien Michelet
- ICMMO (UMR CNRS 8182), Université Paris-Sud, Bâtiment 420, 91405 Orsay cedex (France)
| | - Christophe Bour
- ICMMO (UMR CNRS 8182), Université Paris-Sud, Bâtiment 420, 91405 Orsay cedex (France)
| | | | - Vincent Gandon
- ICMMO (UMR CNRS 8182), Université Paris-Sud, Bâtiment 420, 91405 Orsay cedex (France).
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18
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Braun CM, Congdon EA, Nolin KA. Diastereoselective 1,3-Dipolar Cycloaddition of Nitrones to Donor–Acceptor Cyclopropanes Catalyzed by a Calcium(II) Complex. J Org Chem 2015; 80:1979-84. [DOI: 10.1021/jo502686t] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Caroline M. Braun
- University of Richmond, 28 Westhampton Way, Richmond, Virginia 23173, United States
| | - Elizabeth A. Congdon
- University of Richmond, 28 Westhampton Way, Richmond, Virginia 23173, United States
| | - Kristine A. Nolin
- University of Richmond, 28 Westhampton Way, Richmond, Virginia 23173, United States
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19
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Ring Opening of Donor-Acceptor Cyclopropanes with the Azide Ion: A Tool for Construction of N-Heterocycles. Chemistry 2015; 21:4975-87. [DOI: 10.1002/chem.201405551] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Indexed: 12/17/2022]
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20
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Abstract
Donor–acceptor cyclopropane annulations – not just for heterocycles.
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Affiliation(s)
- Huck K. Grover
- The University of Western Ontario
- Department of Chemistry
- London
- Canada N6A 5B7
| | - Michael R. Emmett
- The University of Western Ontario
- Department of Chemistry
- London
- Canada N6A 5B7
| | - Michael A. Kerr
- The University of Western Ontario
- Department of Chemistry
- London
- Canada N6A 5B7
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21
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Novikov RA, Tomilov YV. Dimerization of donor–acceptor cyclopropanes. MENDELEEV COMMUNICATIONS 2015. [DOI: 10.1016/j.mencom.2015.01.001] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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22
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Armstrong EL, Kerr MA. Synthesis and reactivity of bis(2,2,2-trifluoroethyl)cyclopropane-1,1-dicarboxylates. Org Chem Front 2015. [DOI: 10.1039/c5qo00176e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diazo-bis-222-trifluoroethylmalonate was treated with a variety of alkenes under the influence of rhodium catalysis to yield the corresponding bis(2,2,2-trifluoroethyl)cyclopropane-1,1-dicarboxylates in good yields.
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Affiliation(s)
- Erin L. Armstrong
- University of Western Ontario
- Department of Chemistry
- London
- Canada N6A 5B7
| | - Michael A. Kerr
- University of Western Ontario
- Department of Chemistry
- London
- Canada N6A 5B7
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23
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Affiliation(s)
- David Lebœuf
- Université Paris-Sud, Institut de Chimie Moléculaire
et des Matériaux (UMR 8182), Equipe de Catalyse Moléculaire, 91405 Orsay, France
- CNRS, 91405 Orsay, France
| | - Emmanuelle Schulz
- Université Paris-Sud, Institut de Chimie Moléculaire
et des Matériaux (UMR 8182), Equipe de Catalyse Moléculaire, 91405 Orsay, France
- CNRS, 91405 Orsay, France
| | - Vincent Gandon
- Université Paris-Sud, Institut de Chimie Moléculaire
et des Matériaux (UMR 8182), Equipe de Catalyse Moléculaire, 91405 Orsay, France
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