1
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Zosim TP, Kadikova RN, Novikov RA, Korlyukov AA, Mozgovoj OS, Ramazanov IR. The TaCl 5-Mediated Reaction of Dimethyl 2-Phenylcyclopropane-1,1-dicarboxylate with Aromatic Aldehydes as a Route to Substituted Tetrahydronaphthalenes. Molecules 2024; 29:2715. [PMID: 38930781 PMCID: PMC11205635 DOI: 10.3390/molecules29122715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 05/31/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024] Open
Abstract
It is found that the reaction of dimethyl 2-phenylcyclopropane-1,1-dicarboxylate with 2 equivalents each of aromatic aldehydes and TaCl5 in 1,2-dichloroethane at 23 °C for 24 h after hydrolysis gives substituted 4-phenyl-3,4-dihydronaphtalene-2,2(1H)-dicarboxylates in good yield. This represents a new type of reactions between 2-arylcyclopropane-1,1-dicarboxylates and aromatic aldehydes, yielding chlorinated tetrahydronaphthalenes with a cis arrangement of the aryl and chlorine substituents in the cyclohexene moiety. A plausible reaction mechanism is proposed.
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Affiliation(s)
- Tat’yana P. Zosim
- Institute of Petrochemistry and Catalysis of Russian Academy of Sciences, Prospekt Oktyabrya 141, 450075 Ufa, Russia; (T.P.Z.); (O.S.M.)
| | - Rita N. Kadikova
- Institute of Petrochemistry and Catalysis of Russian Academy of Sciences, Prospekt Oktyabrya 141, 450075 Ufa, Russia; (T.P.Z.); (O.S.M.)
| | - Roman A. Novikov
- N.D. Zelinsky Institute of Organic Chemistry of Russian Academy of Sciences, Leninsky prospect 47, 119991 Moscow, Russia;
| | - Alexander A. Korlyukov
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova St., 28 bld. 1, 119334 Moscow, Russia;
| | - Oleg S. Mozgovoj
- Institute of Petrochemistry and Catalysis of Russian Academy of Sciences, Prospekt Oktyabrya 141, 450075 Ufa, Russia; (T.P.Z.); (O.S.M.)
| | - Ilfir R. Ramazanov
- Institute of Petrochemistry and Catalysis of Russian Academy of Sciences, Prospekt Oktyabrya 141, 450075 Ufa, Russia; (T.P.Z.); (O.S.M.)
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2
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Thangamalar S, Srinivasan K. Tandem Dearomative/Rearomative (3 + 2) Annulation of Aroyl-Substituted Donor-Acceptor Cyclopropanes with Benzothiazoles. J Org Chem 2023; 88:3903-3908. [PMID: 36877197 DOI: 10.1021/acs.joc.2c02768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
A series of benzo[d]pyrrolo[2,1-b]thiazoles was synthesized by (3 + 2) annulation of aroyl-substituted donor-acceptor cyclopropanes with benzothiazoles. The annulation, promoted by a substoichiometric amount of Sc(OTf)3, takes place through the formation of the respective dearomatized (3 + 2) adducts, followed by unexpected decarbethoxylative and dehydrogenative rearomatization to afford fully aromatized products. The unusual reactivity is attributed to the presence of an extra aroyl group in the donor-acceptor cyclopropanes.
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Affiliation(s)
| | - Kannupal Srinivasan
- School of Chemistry, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620 024, India
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3
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Liu H, Tian L, Wang H, Li ZQ, Zhang C, Xue F, Feng C. A novel type of donor-acceptor cyclopropane with fluorine as the donor: (3 + 2)-cycloadditions with carbonyls. Chem Sci 2022; 13:2686-2691. [PMID: 35340862 PMCID: PMC8890111 DOI: 10.1039/d2sc00302c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 01/26/2022] [Indexed: 12/16/2022] Open
Abstract
gem-Difluorocyclopropane diester is disclosed as a new type of donor–acceptor cyclopropane, which smoothly participates in (3 + 2)-cycloadditions with various aldehydes and ketones. This work represents the first application of gem-difluorine substituents as an unconventional donor group for activating cyclopropane substrates in catalytic cycloaddition reactions. With this method, a wide variety of densely functionalized gem-difluorotetrahydrofuran skeletons, which are otherwise difficult to prepare, could be readily assembled in high yields under mild reaction conditions. Computational studies show that the cleavage of the C–C bond between the difluorine and diester moieties occurs upon a SN2-type attack of the carbonyl oxygen. A new type of donor–acceptor cyclopropane with gem-difluorine as an unconventional donor group undergoes (3 + 2)-cycloadditions with various aldehydes/ketones, affording densely functionalized gem-difluorotetrahydrofurans.![]()
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Affiliation(s)
- Haidong Liu
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University Nanjing 211816 P. R. China
| | - Lifang Tian
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University Nanjing 211816 P. R. China
| | - Hui Wang
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University Nanjing 211816 P. R. China
| | - Zhi-Qiang Li
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University Nanjing 211816 P. R. China
| | - Chi Zhang
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University Nanjing 211816 P. R. China
| | - Fei Xue
- Institute of Material Physics & Chemistry, College of Science, Nanjing Forestry University Nanjing 210037 China
| | - Chao Feng
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University Nanjing 211816 P. R. China
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4
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Pirenne V, Robert EGL, Waser J. Catalytic (3 + 2) annulation of donor-acceptor aminocyclopropane monoesters and indoles. Chem Sci 2021; 12:8706-8712. [PMID: 34257869 PMCID: PMC8246098 DOI: 10.1039/d1sc01127h] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 05/04/2021] [Indexed: 12/16/2022] Open
Abstract
The efficient catalytic activation of donor-acceptor aminocyclopropanes lacking the commonly used diester acceptor is reported here in a (3 + 2) dearomative annulation with indoles. Bench-stable tosyl-protected aminocyclopropyl esters were converted into cycloadducts in 46-95% yields and up to 95 : 5 diastereomeric ratio using catalytic amounts of triethylsilyl triflimide. Tricyclic indoline frameworks containing four stereogenic centers including all-carbon quaternary centers were obtained.
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Affiliation(s)
- Vincent Pirenne
- Laboratory of Catalysis and Organic Synthesis, Institut des Sciences et Ingénierie Chimique, Ecole Polytechnique Fédérale de Lausanne Ch-1015 Lausanne Switzerland
| | - Emma G L Robert
- Laboratory of Catalysis and Organic Synthesis, Institut des Sciences et Ingénierie Chimique, Ecole Polytechnique Fédérale de Lausanne Ch-1015 Lausanne Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis, Institut des Sciences et Ingénierie Chimique, Ecole Polytechnique Fédérale de Lausanne Ch-1015 Lausanne Switzerland
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5
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Thangamani M, Thangamalar S, Srinivasan K. Tin(iv) chloride mediated (3 + 2) annulation of trans-2-aroyl-3-styrylcyclopropane-1,1-dicarboxylates with nitriles: diastereoselective access to 5-vinyl-1-pyrroline derivatives. RSC Adv 2021; 11:14980-14985. [PMID: 35424056 PMCID: PMC8697856 DOI: 10.1039/d1ra01194d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 04/15/2021] [Indexed: 12/19/2022] Open
Abstract
A tin(iv) chloride promoted (3 + 2) annulation of trans-2-aroyl-3-styrylcyclopropane-1,1-dicarboxylates with nitriles is reported. The transformation involves the Lewis acid assisted formation of 1,5-dipolar intermediates from the cyclopropane dicarboxylates and nitriles followed by cyclization. The reactions proceed in a highly diastereoselective manner and afford 5-vinyl-1-pyrroline derivatives in 60-88% yields.
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Affiliation(s)
- Murugesan Thangamani
- School of Chemistry, Bharathidasan University Tiruchirappalli-620024 Tamil Nadu India +91-431-2407043 +91-431-2407053
| | - Subaramaniam Thangamalar
- School of Chemistry, Bharathidasan University Tiruchirappalli-620024 Tamil Nadu India +91-431-2407043 +91-431-2407053
| | - Kannupal Srinivasan
- School of Chemistry, Bharathidasan University Tiruchirappalli-620024 Tamil Nadu India +91-431-2407043 +91-431-2407053
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6
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Borisov DD, Novikov RA, Tomilov YV. Reactions of Styrylmalonates with Aromatic Aldehydes: Detailed Synthetic and Mechanistic Studies. J Org Chem 2021; 86:4457-4471. [PMID: 33656876 DOI: 10.1021/acs.joc.0c02891] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Reactions of styrylmalonates with aromatic aldehydes in the presence of Lewis and Brønsted acids and their regularities have been studied in detail. Approaches to the synthesis of various polysubstituted 5,6-dihydropyran-2-ones, indenes, aryl-containing dienes and trienes, cyclopentadienes, and polycyclic lactones have been developed with chemo-, regio-, stereo-, and diastereoselectivity control. The mechanisms of these reactions were studied in depth using multinuclear NMR experiments, monitoring the reactions in the NMR tube, and 18O isotope labeling.
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Affiliation(s)
- Denis D Borisov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences (RAS), 47 Leninsky Prospect, 119991 Moscow, Russian Federation
| | - Roman A Novikov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences (RAS), 47 Leninsky Prospect, 119991 Moscow, Russian Federation
| | - Yury V Tomilov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences (RAS), 47 Leninsky Prospect, 119991 Moscow, Russian Federation
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7
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Romanov AR, Mareev AV, Popov AV, Zinchenko SV. One-Pot Synthesis of Diethyl 2-Aryl-3-(trifluoroacetyl)-cyclopropane-1,1-dicarboxylates. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020090122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Cohen Y, Cohen A, Marek I. Creating Stereocenters within Acyclic Systems by C–C Bond Cleavage of Cyclopropanes. Chem Rev 2020; 121:140-161. [DOI: 10.1021/acs.chemrev.0c00167] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yair Cohen
- Schulich Faculty of Chemistry, Technion − Israel Institute of Technology, Technion City, Haifa 3200009, Israel
| | - Anthony Cohen
- Schulich Faculty of Chemistry, Technion − Israel Institute of Technology, Technion City, Haifa 3200009, Israel
| | - Ilan Marek
- Schulich Faculty of Chemistry, Technion − Israel Institute of Technology, Technion City, Haifa 3200009, Israel
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9
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Tamilarasan VJ, Srinivasan K. AlCl3
-Promoted Ritter-Type Ring-Opening Reactions of γ-Butyrolactone Fused Donor-Acceptor Cyclopropanes with Wet Aliphatic Nitriles. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901639] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- V. John Tamilarasan
- School of Chemistry; Bharathidasan University; 620024 Tiruchirappalli Tamil Nadu India
| | - Kannupal Srinivasan
- School of Chemistry; Bharathidasan University; 620024 Tiruchirappalli Tamil Nadu India
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10
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Tamilarasan VJ, Srinivasan K. SnCl4-Promoted [3+2] Annulation of γ-Butyrolactone-Fused Donor–Acceptor Cyclopropanes with Nitriles: Access to γ-Butyrolactone-Fused 1-Pyrrolines. J Org Chem 2019; 84:8782-8787. [DOI: 10.1021/acs.joc.9b01155] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- V. John Tamilarasan
- School of Chemistry, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620 024, India
| | - Kannupal Srinivasan
- School of Chemistry, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620 024, India
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11
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Affiliation(s)
- Hoang M. Le
- Department of Chemistry and Center for New Directions in Organic Synthesis; Hanyang University; Sungdong-Gu 04763 Seoul South Korea
| | - Hung D. Mac
- Faculty of Chemistry; Vietnam National University-Hanoi University of Science; 19 Le Thanh Tong, Hoan Kiem Ha Noi Vietnam
| | - Chang Ho Oh
- Department of Chemistry and Center for New Directions in Organic Synthesis; Hanyang University; Sungdong-Gu 04763 Seoul South Korea
| | - Dung T. Do
- Faculty of Chemistry; Vietnam National University-Hanoi University of Science; 19 Le Thanh Tong, Hoan Kiem Ha Noi Vietnam
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12
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“Four-component” assembly of polyaromatic 4H-cyclopenta[b]thiophene structures based on GaCl3-promoted reaction of styrylmalonates with 5-phenylthiophene-2-carbaldehyde. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.02.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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13
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Shen Y, Chai J, Yang G, Chen W, Chai Z. Stereocontrolled Synthesis of trans/cis-2,3-Disubstituted Cyclopropane-1,1-diesters and Applications in the Syntheses of Furanolignans. J Org Chem 2018; 83:12549-12558. [DOI: 10.1021/acs.joc.8b01798] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yue Shen
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
- Traditional Chinese Medicine College, Bozhou University, Bozhou, Anhui 236800, China
| | - Jun Chai
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Gaosheng Yang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Wenlong Chen
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Zhuo Chai
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
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14
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Yang P, Shen Y, Feng M, Yang G, Chai Z. Lewis Acid Catalyzed [3+2] Annulation of γ-Butyrolactone Fused Cyclopropane with Aldehydes/Ketones. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800695] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Pengfei Yang
- Key Laboratory of Functionalized Molecular Solids; Ministry of Education; Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base); College of Chemistry and Materials Science; Anhui Normal University; 189 South Jiuhua Road 241002 Wuhu Anhui China
| | - Yue Shen
- Key Laboratory of Functionalized Molecular Solids; Ministry of Education; Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base); College of Chemistry and Materials Science; Anhui Normal University; 189 South Jiuhua Road 241002 Wuhu Anhui China
- Traditional Chinese Medicine College; Ministry of Education; Bozhou University; 2266 Tangwang Road 236800 Bozhou Anhui China
| | - Manli Feng
- Key Laboratory of Functionalized Molecular Solids; Ministry of Education; Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base); College of Chemistry and Materials Science; Anhui Normal University; 189 South Jiuhua Road 241002 Wuhu Anhui China
| | - Gaosheng Yang
- Key Laboratory of Functionalized Molecular Solids; Ministry of Education; Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base); College of Chemistry and Materials Science; Anhui Normal University; 189 South Jiuhua Road 241002 Wuhu Anhui China
| | - Zhuo Chai
- Key Laboratory of Functionalized Molecular Solids; Ministry of Education; Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base); College of Chemistry and Materials Science; Anhui Normal University; 189 South Jiuhua Road 241002 Wuhu Anhui China
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15
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Tu PC, Zhou L, Kirillov AM, Fang R, Yang L. Computational study on GaCl3-mediated reactions of donor–acceptor cyclopropanes with aromatic aldehydes: mechanism and role of GaCl3 and aldehydes. Org Chem Front 2018. [DOI: 10.1039/c8qo00243f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The mechanism and role of GaCl3 and aldehydes for the GaCl3-mediated reaction of donor–acceptor (D–A) cyclopropanes are clarified through our calculations.
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Affiliation(s)
- Peng-Cheng Tu
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Lin Zhou
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Alexander M. Kirillov
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Universidade de Lisboa
- Lisbon
| | - Ran Fang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Lizi Yang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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16
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Boev VI, Moskalenko AI, Belopukhov SL. Intramolecular hydroalkoxylation of syn- and anti-1-R-2-arylhex-4-en-1-ols. Efficient stereoselective synthesis of tri- and tetrasubstituted tetrahydrofurans. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2017. [DOI: 10.1134/s1070428017100074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Borisov DD, Novikov RA, Tomilov YV. Highly diastereoselective formation of 3,7-dioxabicyclo[3.3.0]octan-2-ones in reaction of 2-arylcyclopropanedicarboxylates with aromatic aldehydes using 1,2-zwitterionic reactivity type. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.08.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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18
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Borisov DD, Novikov RA, Eltysheva AS, Tkachev YV, Tomilov YV. Styrylmalonates as an Alternative to Donor–Acceptor Cyclopropanes in the Reactions with Aldehydes: A Route to 5,6-Dihydropyran-2-ones. Org Lett 2017; 19:3731-3734. [DOI: 10.1021/acs.orglett.7b01556] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Denis D. Borisov
- N.
D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Roman A. Novikov
- N.
D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
- Engelhardt
Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilov st., 119991 Moscow, Russian Federation
| | - Anna S. Eltysheva
- N.
D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Yaroslav V. Tkachev
- 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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19
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Hua D, Yang P, Shen Y, Yang G, Chai Z. PCl5-mediated ring-openings of trans-2,3-disubstituted cyclopropane-1,1-diesters: A stereoselective way to trisubstituted vinyl chlorides. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.01.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Sathishkannan G, Tamilarasan VJ, Srinivasan K. Nucleophilic ring-opening reactions of trans-2-aroyl-3-aryl-cyclopropane-1,1-dicarboxylates with hydrazines. Org Biomol Chem 2017; 15:1400-1406. [DOI: 10.1039/c6ob02552h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
trans-2-Aroyl-3-aryl-cyclopropane-1,1-dicarboxylates gave dihydropyrazoles when treated with arylhydrazines in refluxing EtOH, whereas they afforded cyclopropane-fused pyridazinones upon treatment with hydrazines in refluxing AcOH.
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21
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Borisov DD, Novikov RA, Tomilov YV. GaCl3
-Mediated Reactions of Donor-Acceptor Cyclopropanes with Aromatic Aldehydes. Angew Chem Int Ed Engl 2016; 55:12233-7. [DOI: 10.1002/anie.201603927] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 06/10/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Denis D. Borisov
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky prosp. 119991 Moscow Russian Federation
| | - Roman A. Novikov
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky prosp. 119991 Moscow Russian Federation
- Engelhardt Institute of Molecular Biology; Russian Academy of Sciences; 32 Vavilov st. 119991 Moscow Russian Federation
| | - 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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22
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Borisov DD, Novikov RA, Tomilov YV. GaCl3
-Mediated Reactions of Donor-Acceptor Cyclopropanes with Aromatic Aldehydes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603927] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Denis D. Borisov
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky prosp. 119991 Moscow Russian Federation
| | - Roman A. Novikov
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky prosp. 119991 Moscow Russian Federation
- Engelhardt Institute of Molecular Biology; Russian Academy of Sciences; 32 Vavilov st. 119991 Moscow Russian Federation
| | - 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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23
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Liu J, Ye W, Qing X, Wang C. Solvent-Free DABCO-Mediated [3 + 2] Cycloadditions of Donor–Acceptor Cyclopropanes with Aldehydes: Strategy for Synthesis of Fully Substituted Furans. J Org Chem 2016; 81:7970-6. [DOI: 10.1021/acs.joc.6b01259] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiaming Liu
- School
of Chemistry and Chemical
Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Weijian Ye
- School
of Chemistry and Chemical
Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Xushun Qing
- School
of Chemistry and Chemical
Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Cunde Wang
- School
of Chemistry and Chemical
Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
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24
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de la Torre A, Cuyamendous C, Bultel-Poncé V, Durand T, Galano JM, Oger C. Recent advances in the synthesis of tetrahydrofurans and applications in total synthesis. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.076] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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25
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Zhang C, Xu M, Ren J, Wang Z. Sc(OTf)3-Catalyzed Diastereoselective Formal [3+2] Cycloaddition Reactions of Alkynylcyclopropane Ketones with Electron-Rich Aromatic Aldehydes To Yield 2,5-trans-Tetrahydrofurans. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600233] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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26
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Sabbatani J, Maulide N. Temporary Generation of a Cyclopropyl Oxocarbenium Ion Enables Highly Diastereoselective Donor-Acceptor Cyclopropane Cycloaddition. Angew Chem Int Ed Engl 2016; 55:6780-3. [PMID: 27099179 DOI: 10.1002/anie.201601340] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 03/07/2016] [Indexed: 11/08/2022]
Abstract
A novel formal [3+2] cycloaddition of cyclopropylacetals and aldehydes was developed, and the resulting trisubstituted tetrahydrofurans display three new chiral centers formed with highly diastereoselectivity. This method is stereocomplementary to most previously reported cycloadditions of malonate diesters, relies on the transient generation of cyclopropyl oxocarbenium ions, proceeds under mild conditions, and is based on the concept of temporary activation of an otherwise inert protecting group.
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Affiliation(s)
- Juliette Sabbatani
- Fakultät für Chemie, Institut für Organische Chemie, Universität Wien, Währinger Straße 38, 1090, Wien, Austria
| | - Nuno Maulide
- Fakultät für Chemie, Institut für Organische Chemie, Universität Wien, Währinger Straße 38, 1090, Wien, Austria.
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27
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Sabbatani J, Maulide N. Temporäre Bildung eines Cyclopropyl-Oxocarbeniumions ermöglicht eine außerordentlich diastereoselektive Cycloaddition von Donor-Akzeptor-Cyclopropanen. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201601340] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Juliette Sabbatani
- Fakultät für Chemie, Institut für Organische Chemie; Universität Wien; Währinger Straße 38 1090 Wien Österreich
| | - Nuno Maulide
- Fakultät für Chemie, Institut für Organische Chemie; Universität Wien; Währinger Straße 38 1090 Wien Österreich
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28
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Pandey AK, Ghosh A, Banerjee P. Reactivity of Donor-Acceptor Cyclopropanes with Saturated and Unsaturated Heterocyclic Compounds. Isr J Chem 2016. [DOI: 10.1002/ijch.201500100] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Ashok Kumar Pandey
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road Rupnagar Punjab- 140001 India
| | - Asit Ghosh
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road Rupnagar Punjab- 140001 India
| | - Prabal Banerjee
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road Rupnagar Punjab- 140001 India
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29
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Selvi T, Srinivasan K. Synthetic Applications of Aroyl- and Nitro-substituted 2-Aryl-Cyclopropane-1,1-Dicarboxylates. Isr J Chem 2016. [DOI: 10.1002/ijch.201500093] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Thangavel Selvi
- School of Chemistry; Bharathidasan University; Tiruchirappalli 620 024 Tamil Nadu India
| | - Kannupal Srinivasan
- School of Chemistry; Bharathidasan University; Tiruchirappalli 620 024 Tamil Nadu India
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30
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Kumar Kondapi VP, Soueidan OM, Hosseini SN, Jabari N, West FG. Efficient and Easy Access to Optically Pure Tetrasubstituted Tetrahydrofurans via Stereoselective Opening ofC2-Symmetric Epoxide and Aziridine Rings. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501540] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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31
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[4+3] Cycloaddition of Donor-Acceptor Cyclopropanes with Amphiphilic Benzodithioloimine as Surrogate for ortho
-Bisthioquinone. Chemistry 2015; 22:521-5. [DOI: 10.1002/chem.201504013] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Indexed: 12/20/2022]
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32
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Nikoofar K, Gorji S. AlCl3-Promoted Thiocyanation of N-Containing Aromatic and Heteroaromatic Compounds Under Solvent-Free Conditions. PHOSPHORUS SULFUR 2015. [DOI: 10.1080/10426507.2014.978321] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Kobra Nikoofar
- Department of Chemistry, Faculty of Science, Alzahra University, Vanak, Tehran, Iran
| | - Samareh Gorji
- Department of Chemistry, Faculty of Science, Alzahra University, Vanak, Tehran, Iran
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33
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Selvi T, Srinivasan K. Boron Trifluoride-Promoted Indium(III) Triflate-Catalyzed Sequential One-Pot Synthesis of (1,2-Diaryl-2-oxoethyl)malonates fromtrans-2-Aryl-3-nitrocyclopropane-1,1-dicarboxylates and Activated Arenes. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500143] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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34
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Kumar Pandey A, Ghosh A, Banerjee P. Lewis-Acid-Catalysed Tandem Meinwald Rearrangement/Intermolecular [3+2]-Cycloaddition of Epoxides with Donor-Acceptor Cyclopropanes: Synthesis of Functionalized Tetrahydrofurans. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403590] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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35
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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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36
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Selvi T, Vanmathi G, Srinivasan K. Synthesis of 2,3-disubstituted thiophenes from 2-aryl-3-nitro-cyclopropane-1,1-dicarboxylates and 1,4-dithiane-2,5-diol. RSC Adv 2015. [DOI: 10.1039/c5ra09111j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
A two-step synthesis of 2,3-disubstituted thiophenes from trans-2-aryl-3-nitrocyclopropane-1,1-dicarboxylates and 1,4-dithiane-2,5-diol is described.
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Affiliation(s)
- Thangavel Selvi
- School of Chemistry
- Bharathidasan University
- Tiruchirappalli 620 024
- India
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37
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Yang G, Wang T, Chai J, Chai Z. AlCl3-Catalyzed [3+2] Annulations ofcis-2,3-Disubstituted Cyclopropane 1,1-Diesters with Cyclic Ketones: Diastereoselective Construction of Spirotetrahydrofurans. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403325] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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38
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Han Y, Tang WQ, Guo LY, Yan CG. Convenient synthesis of 1a,1b,2,5-tetrahydro-1H-5a-aza-cyclopropa[a]indenes by base promoted cyclodimerization of 1,1-dicyano-2-aryl-3-benzoylcyclopropanes. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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39
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Dulin CC, Murphy KL, Nolin KA. Calcium-catalyzed Friedel–Crafts addition of 1-methylindole to activated cyclopropanes. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.108] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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40
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Su Y, Tu YQ, Gu P. Preparation of Enantioenriched γ-Substituted Lactones via Asymmetric Transfer Hydrogenation of β-Azidocyclopropane Carboxylates Using the Ru-TsDPEN Complex. Org Lett 2014; 16:4204-7. [DOI: 10.1021/ol501895k] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yan Su
- State
Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
- Key Laboratory of Energy Sources & Engineering, State Key Laboratory Cultivation Base of Natural Gas Conversion and Department of Chemistry, Ningxia University, Yinchuan 750021, China
| | - Yong-Qiang Tu
- State
Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Peiming Gu
- Key Laboratory of Energy Sources & Engineering, State Key Laboratory Cultivation Base of Natural Gas Conversion and Department of Chemistry, Ningxia University, Yinchuan 750021, China
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41
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Schneider TF, Kaschel J, Werz DB. A New Golden Age for Donor-Acceptor Cyclopropanes. Angew Chem Int Ed Engl 2014; 53:5504-23. [DOI: 10.1002/anie.201309886] [Citation(s) in RCA: 789] [Impact Index Per Article: 78.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Indexed: 12/22/2022]
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42
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Chakrabarty S, Chatterjee I, Wibbeling B, Daniliuc CG, Studer A. Stereospecific Formal [3+2] Dipolar Cycloaddition of Cyclopropanes with Nitrosoarenes: An Approach to Isoxazolidines. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201400885] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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43
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Chakrabarty S, Chatterjee I, Wibbeling B, Daniliuc CG, Studer A. Stereospecific Formal [3+2] Dipolar Cycloaddition of Cyclopropanes with Nitrosoarenes: An Approach to Isoxazolidines. Angew Chem Int Ed Engl 2014; 53:5964-8. [DOI: 10.1002/anie.201400885] [Citation(s) in RCA: 129] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 03/10/2014] [Indexed: 12/16/2022]
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44
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Ein neues goldenes Zeitalter in der Chemie Donor-Akzeptor-substituierter Cyclopropane. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201309886] [Citation(s) in RCA: 259] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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45
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Selvi T, Srinivasan K. Boron Trifluoride Mediated Ring-Opening Reactions of trans-2-Aryl-3-nitro-cyclopropane-1,1-dicarboxylates. Synthesis of Aroylmethylidene Malonates as Potential Building Blocks for Heterocycles. J Org Chem 2014; 79:3653-8. [DOI: 10.1021/jo402848v] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Thangavel Selvi
- School of Chemistry, Bharathidasan University, Tiruchirappalli-620 024, Tamil Nadu, India
| | - Kannupal Srinivasan
- School of Chemistry, Bharathidasan University, Tiruchirappalli-620 024, Tamil Nadu, India
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46
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Sathishkannan G, Srinivasan K. Lewis Acid-Mediated Transformations oftrans-2-Aroyl-3-aryl- cyclopropane-1,1-dicarboxylates into 2-Pyrones and 1-Indanones. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300861] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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47
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Behbahani FK, Ziaei P. Synthesis of 1,2,3,4-Tetrahydroquinolines Using AlCl3in Aqua Mediated. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2014. [DOI: 10.5012/jkcs.2014.58.1.44] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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48
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Han Y, Tang WQ, Yan CG. Gewald-type reaction of double activated 2,3-diarylcyclopropanes with elemental sulfur for synthesis of polysubstituted 2-aminothiophenes. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.043] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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49
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Urabe F, Miyamoto S, Takahashi K, Ishihara J, Hatakeyama S. Formal [4 + 1]-Cycloaddition of Homopropargyl Alcohols to Diazo Dicarbonyl Compounds Giving Substituted Tetrahydrofurans. Org Lett 2014; 16:1004-7. [DOI: 10.1021/ol403746r] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Fumiya Urabe
- Graduate School of Biomedical
Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Shohei Miyamoto
- Graduate School of Biomedical
Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Keisuke Takahashi
- Graduate School of Biomedical
Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Jun Ishihara
- Graduate School of Biomedical
Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Susumi Hatakeyama
- Graduate School of Biomedical
Sciences, Nagasaki University, Nagasaki 852-8521, Japan
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50
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Ma X, Zhang J, Tang Q, Ke J, Zou W, Shao H. Stereospecific [3+2] cycloaddition of 1,2-cyclopropanated sugars and ketones catalyzed by SnCl4: an efficient synthesis of multi-substituted perhydrofuro[2,3-b]furans and perhydrofuro[2,3-b]pyrans. Chem Commun (Camb) 2014; 50:3505-8. [DOI: 10.1039/c3cc48963a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient stereospecific [3+2] cycloaddition of 1,2-cyclopropanated sugars and ketones catalyzed by SnCl4 is described.
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Affiliation(s)
- Xiaofeng Ma
- Natural Products Research Centre
- Chengdu Institute of Biology
- Chinese Academy of Sciences
- Chengdu, China
| | - Jichao Zhang
- Natural Products Research Centre
- Chengdu Institute of Biology
- Chinese Academy of Sciences
- Chengdu, China
| | - Qin Tang
- Natural Products Research Centre
- Chengdu Institute of Biology
- Chinese Academy of Sciences
- Chengdu, China
| | - Jun Ke
- Natural Products Research Centre
- Chengdu Institute of Biology
- Chinese Academy of Sciences
- Chengdu, China
| | - Wei Zou
- Institute for Biological Sciences
- National Research Council of Canada
- Ontario K1A 0R6, Canada
| | - Huawu Shao
- Natural Products Research Centre
- Chengdu Institute of Biology
- Chinese Academy of Sciences
- Chengdu, China
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