1
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Shi Y, Shi Y, Yang S, Chen X, Qiao Y. Chiral Oxazaborolidinium Ion (COBI)-Catalyzed Reaction of Aldimine with Tributyltin Cyanide: Mechanism and Origin of Stereoselectivity. J Org Chem 2023; 88:9803-9810. [PMID: 37399451 DOI: 10.1021/acs.joc.3c00416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
By conducting density functional theory (DFT) calculations, the detailed reaction mechanisms of aldimines with tributyltin cyanide under the catalytic influence of chiral oxazaborolidinium ion (COBI) have been uncovered. Three potential reaction pathways were examined, and two stereoselective routes were determined for the most energetically favorable mechanism. In the primary route, a proton is transferred from the COBI catalyst to the aldimine substrate, which is then followed by the C-C bond formation to produce the final product. Subsequently, NBO analyses of the stereoselectivity-determining transition states were conducted to identify the crucial role of hydrogen bond interactions in controlling stereoselectivity. These computed findings should prove invaluable in comprehending the detailed mechanisms and underlying origins of stereoselectivity for COBI-mediated reactions of this type.
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Affiliation(s)
- Yanli Shi
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China
- Department of pathology, Zhoukou Central Hospital, Zhoukou, Henan 466099, China
| | - Yaqian Shi
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Shanxiao Yang
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Xinhuan Chen
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Yan Qiao
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China
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2
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Wu Z, Guo H, Wu Q, Jiang M, Chen J, Chen B, Li H, Liu L, Chen S. Absolute configuration of cyclopropanes and the structural revision of pyrones from Marine-derived fungus Stagonospora sp. SYSU-MS7888. Bioorg Chem 2023; 136:106542. [PMID: 37087848 DOI: 10.1016/j.bioorg.2023.106542] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 04/04/2023] [Accepted: 04/11/2023] [Indexed: 04/25/2023]
Abstract
Two new cyclopropane derivatives (1-2) and seven undescribed α-pyrone derivatives (3-9), along with one known congener (10) were obtained from the marine fungus Stagonospora sp. SYSU-MS7888, which was isolated from the South China Sea. Their planar structures were established through extensive spectroscopic analyses including 1D and 2D NMR and HR-ESIMS. The absolute configurations were identified on basis of the quantum chemical calculations of ECD and NMR, as well as the modified Mosher's method. It's particularly noteworthy that the tetrasubstituted furopyrans, chenopodolans A-F, possessing phytotoxicity and zootoxicity, were structural misassignments. The structures of chenopodolans featuring with furopyran skeleton were revised as common trisubstituted α-pyrones by computational chemistry, NMR spectroscopic method, and empirical rule. Compounds 1, 2, 7, and 9 showed significant anti-inflammatory activity with IC50 values ranging from 3.6 to 22.8 μM, which is better than the positive control indomethacin (IC50 = 26.5 ± 1.13 μM). This discovery holds potential for the development of new anti-inflammatory agents.
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Affiliation(s)
- Zhenger Wu
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519000, China
| | - Heng Guo
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519000, China
| | - Qilin Wu
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519000, China
| | - Minghua Jiang
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519000, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519000, China
| | - Junjie Chen
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519000, China
| | - Bin Chen
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519000, China
| | - Hanxiang Li
- Institutional Center for Shared Technologies and Facilities, South China Botanical Garden, Chinese Academy of Sciences (CAS), Guangzhou 510650, China
| | - Lan Liu
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519000, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519000, China
| | - Senhua Chen
- School of Marine Sciences, Sun Yat-sen University, Zhuhai 519000, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519000, China; Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, China.
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3
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Han S. “
K‐synthesis
”: Recent advancements in natural product synthesis enabled by unique methods and strategies development in Korea. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sunkyu Han
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) Daejeon South Korea
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4
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Byun S, Farah AO, Wise HR, Katchmar A, Cheong PHY, Scheidt KA. Enantioselective Copper-Catalyzed Borylative Amidation of Allenes. J Am Chem Soc 2022; 144:22850-22857. [DOI: 10.1021/jacs.2c10507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Seunghwan Byun
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois60208, United States
| | - Abdikani Omar Farah
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon97331, United States
| | - Henry R. Wise
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon97331, United States
| | - Andrew Katchmar
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois60208, United States
| | - Paul H.-Y. Cheong
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon97331, United States
| | - Karl A. Scheidt
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois60208, United States
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5
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Straub H, Ryabchuk P, Rubina M, Rubin M. Preparation of Chiral Enantioenriched Densely Substituted Cyclopropyl Azoles, Amines, and Ethers via Formal SN2′ Substitution of Bromocylopropanes. Molecules 2022; 27:molecules27207069. [PMID: 36296663 PMCID: PMC9609026 DOI: 10.3390/molecules27207069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/15/2022] [Accepted: 10/17/2022] [Indexed: 11/16/2022] Open
Abstract
Enantiomerically enriched cyclopropyl ethers, amines, and cyclopropylazole derivatives possessing three stereogenic carbon atoms in a small cycle are obtained via the diastereoselective, formal nucleophilic substitution of chiral, non-racemic bromocyclopropanes. The key feature of this methodology is the utilization of the chiral center of the cyclopropene intermediate, which governs the configuration of the two adjacent stereocenters that are successively installed via 1,4-addition/epimerization sequence.
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Affiliation(s)
- Hillary Straub
- Department of Chemistry, University of Kansas, Lawrence, KS 66045, USA
| | - Pavel Ryabchuk
- Department of Chemistry, University of Kansas, Lawrence, KS 66045, USA
| | - Marina Rubina
- Department of Chemistry, University of Kansas, Lawrence, KS 66045, USA
- Department of Chemistry, North Caucasus Federal University, 355009 Stavropol, Russia
| | - Michael Rubin
- Department of Chemistry, University of Kansas, Lawrence, KS 66045, USA
- Department of Chemistry, North Caucasus Federal University, 355009 Stavropol, Russia
- Correspondence:
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6
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Pian J, Chen Q, Luo Y, Zhao Z, Liu J, He L, Li SW. Asymmetric Synthesis of Chiral Cyclopropanes from Sulfoxonium Ylides Catalyzed by a Chiral-at-Metal Rh(III) Complex. Org Lett 2022; 24:5641-5645. [PMID: 35901168 DOI: 10.1021/acs.orglett.2c01724] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
An enantioselective cyclopropanation reaction of sulfoxonium ylides with β,γ-unsaturated ketoesters catalyzed by a chiral rhodium catalyst has been realized. A variety of optically pure 1,2,3-trisubstituted cyclopropanes was synthesized in 48-89% yields, with up to 99% ee, and with dr >20:1. Furthermore, research shows that a weak coordination between the chiral rhodium catalyst and β,γ-unsaturated ketoesters was responsible for the high diastereoselectivity and enantioselectivity of the corresponding products.
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Affiliation(s)
- Jixin Pian
- State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, School of Chemitry and Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region 832000, People's Republic of China
| | - Qingqing Chen
- State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, School of Chemitry and Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region 832000, People's Republic of China
| | - Yujiao Luo
- State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, School of Chemitry and Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region 832000, People's Republic of China
| | - Zhifei Zhao
- State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, School of Chemitry and Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region 832000, People's Republic of China
| | - Jichang Liu
- State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, School of Chemitry and Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region 832000, People's Republic of China
| | - Lin He
- State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, School of Chemitry and Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region 832000, People's Republic of China
| | - Shi-Wu Li
- State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, School of Chemitry and Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region 832000, People's Republic of China
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7
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Niu S, Huang S, Hong B, Huang Q, Liu X, Shao Z, Zhang G. Antiviral Cyclopropane Acids from Deep-Sea-Derived Fungus Aspergillus sydowii. Mar Drugs 2022; 20:md20070410. [PMID: 35877703 PMCID: PMC9321810 DOI: 10.3390/md20070410] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/15/2022] [Accepted: 06/20/2022] [Indexed: 02/01/2023] Open
Abstract
Four novel monocyclic cyclopropane acids, namely, sydocyclopropanes A–D (1–4), along with one known congener hamavellone B (5), were isolated from the Aspergillus sydowii MCCC 3A00324 fungus, which was isolated from the deep-sea sediment. The gross structures of novel compounds were established by detailed analyses of the spectroscopic data (HRESIMS and NMR spectra), and their absolute configurations were resolved on the basis of the quantum chemical calculations of ECD and NMR data, in association with DP4+ probability analyses. Sydocyclopropanes A–D, featuring the 1,1,2,3-tetrasubstituted cyclopropane nucleus with different lengthy alkyl side chains, were discovered in nature for the first time. All compounds exhibited antiviral activities against A/WSN/33 (H1N1), with IC50 values ranging from 26.7 to 77.2 μM, of which compound 1 exhibited a moderate inhibitory effect (IC50 = 26.7 μM).
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Affiliation(s)
- Siwen Niu
- Technology Innovation Center for Exploitation of Marine Biological Resources, Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (S.N.); (S.H.); (B.H.); (X.L.); (Z.S.)
| | - Shuhuan Huang
- Technology Innovation Center for Exploitation of Marine Biological Resources, Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (S.N.); (S.H.); (B.H.); (X.L.); (Z.S.)
| | - Bihong Hong
- Technology Innovation Center for Exploitation of Marine Biological Resources, Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (S.N.); (S.H.); (B.H.); (X.L.); (Z.S.)
| | - Qixi Huang
- Fangchenggang Center of Inspection and Testing, Fangchenggang 538000, China;
| | - Xiupian Liu
- Technology Innovation Center for Exploitation of Marine Biological Resources, Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (S.N.); (S.H.); (B.H.); (X.L.); (Z.S.)
| | - Zongze Shao
- Technology Innovation Center for Exploitation of Marine Biological Resources, Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (S.N.); (S.H.); (B.H.); (X.L.); (Z.S.)
| | - Gaiyun Zhang
- Technology Innovation Center for Exploitation of Marine Biological Resources, Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China; (S.N.); (S.H.); (B.H.); (X.L.); (Z.S.)
- Correspondence:
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8
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Lahtigui O, Forster D, Duchemin C, Cramer N. Enantioselective Access to 3-Azabicyclo[3.1.0]hexanes by Cp xRh III Catalyzed C–H Activation and Cp*Ir III Transfer Hydrogenation. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01827] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ouidad Lahtigui
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
| | - Dan Forster
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
| | - Coralie Duchemin
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
| | - Nicolai Cramer
- Laboratory of Asymmetric Catalysis and Synthesis, Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
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9
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Yu JK, Czekelius C. Insights into the Gold‐catalyzed Cycloisomerization of 3‐Allyl‐1,4‐diynes for the Synthesis of Bicyclic Hydrocarbons. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jhen-Kuei Yu
- Heinrich Heine University Düsseldorf: Heinrich-Heine-Universitat Dusseldorf Chemistry GERMANY
| | - Constantin Czekelius
- Heinrich-Heine-Universitat Dusseldorf Organic Chemistry II Building 26.33Room U1.33Universitaetsstrasse 1 40225 Duesseldorf GERMANY
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10
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Nam DG, Shim SY, Jeong H, Ryu DH. Catalytic Asymmetric Darzens‐Type Epoxidation of Diazoesters: Highly Enantioselective Synthesis of Trisubstituted Epoxides. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Dong Guk Nam
- Department of Chemistry Sungkyunkwan University 300 Cheoncheon-dong, Jangan-gu Suwon 16419 Korea
| | - Su Yong Shim
- Department of Chemistry Sungkyunkwan University 300 Cheoncheon-dong, Jangan-gu Suwon 16419 Korea
- Present address: Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Hye‐Min Jeong
- Department of Chemistry Sungkyunkwan University 300 Cheoncheon-dong, Jangan-gu Suwon 16419 Korea
| | - Do Hyun Ryu
- Department of Chemistry Sungkyunkwan University 300 Cheoncheon-dong, Jangan-gu Suwon 16419 Korea
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11
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Nam DG, Shim SY, Jeong HM, Ryu DH. Catalytic Asymmetric Darzens-Type Epoxidation of Diazoesters: Highly Enantioselective Synthesis of Trisubstituted Epoxides. Angew Chem Int Ed Engl 2021; 60:22236-22240. [PMID: 34350688 DOI: 10.1002/anie.202108454] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/19/2021] [Indexed: 12/24/2022]
Abstract
Highly enantioselective Darzens-type epoxidation of diazoesters with glyoxal derivatives was accomplished using a chiral boron-Lewis acid catalyst, which facilitated asymmetric synthesis of trisubstituted α,β-epoxy esters. In the presence of a chiral oxazaborolidinium ion catalyst, the reaction proceeded in high yield (up to 99 %) with excellent enantio- and diastereoselectivity (up to >99 % ee and >20:1 dr, respectively). The synthetic potential of this method was illustrated by conversion of the products to various compounds such as epoxy γ-butyrolactone, tertiary β-hydroxy ketone and epoxy diester.
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Affiliation(s)
- Dong Guk Nam
- Department of Chemistry, Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon, 16419, Korea
| | - Su Yong Shim
- Department of Chemistry, Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon, 16419, Korea.,Present address: Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Hye-Min Jeong
- Department of Chemistry, Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon, 16419, Korea
| | - Do Hyun Ryu
- Department of Chemistry, Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon, 16419, Korea
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12
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K. Pagire S, Kumagai N, Shibasaki M. Highly Enantio- and Diastereoselective Synthesis of 1,2,3-Trisubstituted Cyclopropanes from α,β-Unsaturated Amides and Stabilized Sulfur Ylides Catalyzed by a Chiral Copper(I) Complex. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02723] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Santosh K. Pagire
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - Naoya Kumagai
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
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13
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Kim T, Kim JY, Park KY, Ryu DH. Asymmetric Synthesis of (−)‐Dictyopterene C' and its Derivatives via Catalytic Enantioselective Cyclopropanation. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Taehyeong Kim
- Department of Chemistry Sungkyunkwan University Jangan, Suwon 16419 Korea
| | - Jae Yeon Kim
- Department of Chemistry Sungkyunkwan University Jangan, Suwon 16419 Korea
| | - Kyung Yee Park
- Department of Chemistry Sungkyunkwan University Jangan, Suwon 16419 Korea
| | - Do Hyun Ryu
- Department of Chemistry Sungkyunkwan University Jangan, Suwon 16419 Korea
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14
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Sakamoto K, Ikawa Y, Yoshimura T, Matsuo J. Brønsted Acid‐Catalyzed Cyclopropanation of Indoles Using α‐Aryl‐α‐diazoacetates. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Kenta Sakamoto
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences Kanazawa University Kakuma-machi, Kanazawa 920-1192 Japan
| | - Yuya Ikawa
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences Kanazawa University Kakuma-machi, Kanazawa 920-1192 Japan
| | - Tomoyuki Yoshimura
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences Kanazawa University Kakuma-machi, Kanazawa 920-1192 Japan
| | - Jun‐ichi Matsuo
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences Kanazawa University Kakuma-machi, Kanazawa 920-1192 Japan
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16
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Kim ST, Pandit RP, Yun J, Ryu DH. Enantioselective Cyclopropanation/[1,5]-Hydrogen Shift to Access Rauhut-Currier Product. Org Lett 2021; 23:213-217. [PMID: 33332134 DOI: 10.1021/acs.orglett.0c03937] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A Michael addition initiated cyclopropanation/[1,5]-hydrogen shift has been developed for the enantioselective synthesis of Rauhut-Currier products. The reaction of α-alkyl diazoesters and in situ generated o-quinone methides proceeds in the presence of chiral oxazaborolidinium ion, providing Z-stereocontrolled Rauhut-Currier products in high yields (up to 96%) with excellent Z/E selectivities (>20:1) and enantioselectivities (up to >99% ee). The synthetic utility was illustrated by conversion of the product to 3,4-dihydrocoumarins with two adjacent chiral stereocenters.
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Affiliation(s)
- Seung Tae Kim
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | | | - Jaesook Yun
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Do Hyun Ryu
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
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17
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Synthesis of non-nucleoside anti-viral cyclopropylcarboxacyl hydrazones and initial anti-HSV-1 structure-activity relationship studies. Bioorg Med Chem Lett 2020; 30:127559. [PMID: 32961320 DOI: 10.1016/j.bmcl.2020.127559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/12/2020] [Accepted: 09/13/2020] [Indexed: 10/23/2022]
Abstract
The synthesis of a lead anti-viral cyclopropyl carboxy acyl hydrazone 4F17 (5) and three sequential arrays of structural analogues along with the initial assessment and optimization of the antiviral pharmacophore against the herpes simplex virus type 1 (HSV-1) are reported.
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18
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Xue Z, Li Y, Luo S. Chiral Primary Amine-Catalyzed Divergent Coupling of α-Substituted Acrylaldehydes with α-Diazoesters. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02405] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Zaikun Xue
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100490, China
| | - Yao Li
- Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Sanzhong Luo
- Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100490, China
- Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China
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19
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Liu Y, Leng H, Li Q, Li J. Catalytic Strategies for the Asymmetric Construction of Cyclic Frameworks with a Halogenated Tetrasubstituted Stereocenter. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000540] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yue Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics Chengdu University Chengdu 610052 PR China
| | - Hai‐Jun Leng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics Chengdu University Chengdu 610052 PR China
| | - Qing‐Zhu Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics Chengdu University Chengdu 610052 PR China
| | - Jun‐Long Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics Chengdu University Chengdu 610052 PR China
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20
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Chen FY, Xiang L, Zhan G, Liu H, Kang B, Zhang SC, Peng C, Han B. Highly stereoselective organocatalytic synthesis of pyrrolidinyl spirooxindoles containing halogenated contiguous quaternary carbon stereocenters. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151806] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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21
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Ning Y, Zhang X, Gai Y, Dong Y, Sivaguru P, Wang Y, Reddy BRP, Zanoni G, Bi X. Difluoroacetaldehyde
N
‐Triftosylhydrazone (DFHZ‐Tfs) as a Bench‐Stable Crystalline Diazo Surrogate for Diazoacetaldehyde and Difluorodiazoethane. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000119] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Yongquan Ning
- Department of ChemistryNortheast Normal University Changchun 130024 China
| | - Xinyu Zhang
- Department of ChemistryNortheast Normal University Changchun 130024 China
| | - Yi Gai
- Department of ChemistryNortheast Normal University Changchun 130024 China
| | - Yuanqing Dong
- Department of ChemistryNortheast Normal University Changchun 130024 China
| | | | - Yingying Wang
- Department of ChemistryNortheast Normal University Changchun 130024 China
| | | | - Giuseppe Zanoni
- Department of ChemistryUniversity of Pavia Viale Taramelli 12 27100 Pavia Italy
| | - Xihe Bi
- Department of ChemistryNortheast Normal University Changchun 130024 China
- State Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 China
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22
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Ning Y, Zhang X, Gai Y, Dong Y, Sivaguru P, Wang Y, Reddy BRP, Zanoni G, Bi X. Difluoroacetaldehyde N-Triftosylhydrazone (DFHZ-Tfs) as a Bench-Stable Crystalline Diazo Surrogate for Diazoacetaldehyde and Difluorodiazoethane. Angew Chem Int Ed Engl 2020; 59:6473-6481. [PMID: 31999022 DOI: 10.1002/anie.202000119] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Indexed: 12/26/2022]
Abstract
Despite the growing importance of volatile functionalized diazoalkanes in organic synthesis, their safe generation and utilization remain a formidable challenge because of their difficult handling along with storage and security issues. In this study, we developed a bench-stable difluoroacetaldehyde N-triftosylhydrazone (DFHZ-Tfs) as an operationally safe diazo surrogate that can release in situ two low-molecular-weight diazoalkanes, diazoacetaldehyde (CHOCHN2 ) or difluorodiazoethane (CF2 HCHN2 ), in a controlled fashion under specific conditions. DFHZ-Tfs has been successfully employed in the Fe-catalyzed cyclopropanation and Doyle-Kirmse reactions, thus highlighting the synthetic utility of DFHZ-Tfs in the efficient construction of molecule frameworks containing CHO or CF2 H groups. Moreover, the reaction mechanism for the generation of CHOCHN2 from CF2 HCHN2 was elucidated by density functional theory (DFT) calculations.
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Affiliation(s)
- Yongquan Ning
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Xinyu Zhang
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Yi Gai
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Yuanqing Dong
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | | | - Yingying Wang
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | | | - Giuseppe Zanoni
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
| | - Xihe Bi
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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23
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Kang KT, Park SH, Ryu DH. Enantioselective Strecker and Allylation Reactions with Aldimines Catalyzed by Chiral Oxazaborolidinium Ions. Org Lett 2019; 21:6679-6683. [PMID: 31429578 DOI: 10.1021/acs.orglett.9b02280] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Chiral oxazaborolidinium ion (COBI)-catalyzed enantioselective nucleophilic addition reactions of aldimines using tributyltin cyanide and allyltributylstannane have been developed. Various α-aminonitriles and homoallylic amines were synthesized in high yield (up to 98%) with high to excellent enantioselectivity (up to 99% ee). A rational mechanistic model for the complex of COBI and aldimine is provided to account for these enantioselective reactions.
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Affiliation(s)
- Ki-Tae Kang
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Sang Hyun Park
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Do Hyun Ryu
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
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24
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Shim SY, Ryu DH. Enantioselective Carbonyl 1,2- or 1,4-Addition Reactions of Nucleophilic Silyl and Diazo Compounds Catalyzed by the Chiral Oxazaborolidinium Ion. Acc Chem Res 2019; 52:2349-2360. [PMID: 31314494 DOI: 10.1021/acs.accounts.9b00279] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Boron Lewis acid catalysis has a long history and has become one of the most powerful methods for organic synthesis. In addition to achiral boron catalysts such as BX3 (X = F, Cl, Br) and B(C6F5)3, chiral boron catalysts are also significant synthetic tools used by organic chemists in academic laboratories and industry. Since first reported by Corey et al. in 2002 ( Corey et al. J. Am. Chem. Soc. 2002 , 124 , 3808 ), the chiral oxazaborolidinium ion (COBI), an activated form of proline-derived oxazaborolidine, has been used as a strong Lewis acid catalyst. Although the early examples of asymmetric synthesis through COBI-catalyzed nucleophilic 1,2- or 1,4-carbonyl additions were reported in 2004-2006, Diels-Alder and cycloaddition reactions of various carbonyl compounds were mostly developed over the next several years to afford enantioenriched cyclized products. The power of COBI in catalyzing carbonyl 1,2- or 1,4-addition reactions triggered our interest in developing asymmetric synthetic methodologies to generate versatile enantiomerically enriched compounds. In this Account, we summarize our recent studies on COBI-catalyzed asymmetric nucleophilic carbonyl addition and tandem reactions. Logical mechanistic explanations of asymmetric COBI catalysis are also discussed. The proton-activated COBI catalyst, which can activate various carbonyl compounds such as aldehydes, ketones, acroleins, and enones through Lewis acid-base interactions and synergistic hydrogen bonds, facilitates asymmetric 1,2- or 1,4-carbonyl additions of nucleophiles. Nucleophiles bearing trialkylsilyl groups successfully reacted with aromatic, aliphatic, and α,β-unsaturated aldehydes through 1,2-addition reactions resulting in chiral β-hydroxy esters. In addition, efficient asymmetric hydrosilylation of ketones was achieved with a TfOH-activated COBI catalyst. Optically active β-keto esters and all-carbon quaternary aldehydes were synthesized successfully through asymmetric 1,2-addition of diazo compounds and tandem H- or C-migration, respectively. In some cases, epoxide products were obtained as side products via the Darzens reaction pathway. Solvent and π-π interactions played important roles in favoring C-migration over H-migration. Nucleophilic 1,4-addition of diazo compounds and chemoselective ring-closure afforded an efficient approach to cyclopropanes, and their tandem rearrangements provided four- and seven-membered cyclic compounds with excellent stereoselectivity. After a Michael addition of diazo compounds, the selective β-hydride shift pathway afforded the β-substituted cyclic enones with high diastereo- and enantioselectivity. The presence of π-bond(s) in the substituents at the α-position of the diazo compound hindered the β-hydride shift pathway and, as a result, favored the cyclopropanation pathway. While there still remain challenges to be overcome, these results further understanding of COBI catalysis and open a window for future development of new asymmetric synthetic methods using carbonyl addition and tandem reactions.
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25
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Pandit RP, Kim ST, Ryu DH. Asymmetric Synthesis of Enantioenriched 2‐Aryl‐2,3‐Dihydrobenzofurans by a Lewis Acid Catalyzed Cyclopropanation/Intramolecular Rearrangement Sequence. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906954] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | - Seung Tae Kim
- Department of ChemistrySungkyunkwan University 300, Cheoncheon, Jangan Suwon 16419 Korea
| | - Do Hyun Ryu
- Department of ChemistrySungkyunkwan University 300, Cheoncheon, Jangan Suwon 16419 Korea
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26
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Pandit RP, Kim ST, Ryu DH. Asymmetric Synthesis of Enantioenriched 2-Aryl-2,3-Dihydrobenzofurans by a Lewis Acid Catalyzed Cyclopropanation/Intramolecular Rearrangement Sequence. Angew Chem Int Ed Engl 2019; 58:13427-13432. [PMID: 31309680 DOI: 10.1002/anie.201906954] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Indexed: 12/14/2022]
Abstract
A cyclopropanation/intramolecular rearrangement initiated by the Michael addition of in situ generated ortho-quinone methides (o-QMs) has been developed for the enantioselective synthesis of 2-aryl-2,3-dihydrobenzofurans containing two consecutive stereogenic centers, including a quaternary carbon atom. In the presence of a chiral oxazaborolidinium ion catalyst, the reaction proceeded in excellent yields (up to 95 %) with excellent stereoselectivity (up to >99 ee, up to >20:1 d.r.).
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Affiliation(s)
- Rameshwar Prasad Pandit
- Department of Chemistry, Sungkyunkwan University, 300, Cheoncheon, Jangan, Suwon, 16419, Korea
| | - Seung Tae Kim
- Department of Chemistry, Sungkyunkwan University, 300, Cheoncheon, Jangan, Suwon, 16419, Korea
| | - Do Hyun Ryu
- Department of Chemistry, Sungkyunkwan University, 300, Cheoncheon, Jangan, Suwon, 16419, Korea
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27
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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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28
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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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29
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Zuo Y, He X, Ning Y, Tang Q, Xie M, Hu W, Shang Y. Substituent-oriented C–N bond formation via N–H insertion or Wolff rearrangement of 5-aryl-1H-pyrazoles and diazo compounds. Org Biomol Chem 2019; 17:9766-9771. [DOI: 10.1039/c9ob01868a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Substituent-oriented C–N bond formation of 5-aryl-1H-pyrazoles with diazo compounds.
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Affiliation(s)
- Youpeng Zuo
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Xinwei He
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Yi Ning
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Qiang Tang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Mengqing Xie
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Wangcheng Hu
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
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30
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Döben N, Yan H, Kischkewitz M, Mao J, Studer A. Intermolecular Acetoxyaminoalkylation of α-Diazo Amides with (Diacetoxyiodo)benzene and Amines. Org Lett 2018; 20:7933-7936. [DOI: 10.1021/acs.orglett.8b03504] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Nadine Döben
- Institute of Organic Chemistry, University of Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Hong Yan
- Institute of Organic Chemistry, University of Münster, Corrensstrasse 40, 48149 Münster, Germany
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, P. R. China
| | - Marvin Kischkewitz
- Institute of Organic Chemistry, University of Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Jincheng Mao
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, P. R. China
| | - Armido Studer
- Institute of Organic Chemistry, University of Münster, Corrensstrasse 40, 48149 Münster, Germany
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31
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Zhao P, Wu S, Ke C, Liu X, Feng X. Chiral Lewis acid-catalyzed enantioselective cyclopropanation and C-H insertion reactions of vinyl ketones with α-diazoesters. Chem Commun (Camb) 2018; 54:9837-9840. [PMID: 30109874 DOI: 10.1039/c8cc05420g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Enantioselective cyclopropanation and C-H insertion reactions of α-substituted vinyl ketones with α-diazoesters have been accomplished using a N,N'-dioxide-scandium(iii) complex catalyst. Various tetrasubstituted cyclopropanes and E-enone derivatives bearing a chiral ester substituent were obtained simultaneously with good yields and excellent enantioselectivities.
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Affiliation(s)
- Peng Zhao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China.
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32
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Shim SY, Choi Y, Ryu DH. Asymmetric Synthesis of Cyclobutanone via Lewis Acid Catalyzed Tandem Cyclopropanation/Semipinacol Rearrangement. J Am Chem Soc 2018; 140:11184-11188. [PMID: 30089355 DOI: 10.1021/jacs.8b06835] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Chiral Lewis acid catalyzed asymmetric formation of cyclobutanones from α-silyloxyacroleins and α-alkyl or α-aryl diazoesters has been developed. In the presence of a chiral oxazaborolidinium ion catalyst, various α-silyloxycyclobutanones possessing a chiral β-quaternary center were synthesized in high yield (up to 91%) with excellent enantio- and diastereoselectivity (up to 98% ee and up to >20:1 dr) through tandem cyclopropanation/semipinacol rearrangement. The synthetic potential of this method was illustrated by conversion of the product to various cyclic compounds such as γ-lactone, cyclobutanol, and cyclopentanone.
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Affiliation(s)
- Su Yong Shim
- Department of Chemistry , Sungkyunkwan University , Suwon 16419 , Korea
| | - Yuna Choi
- Department of Chemistry , Sungkyunkwan University , Suwon 16419 , Korea
| | - Do Hyun Ryu
- Department of Chemistry , Sungkyunkwan University , Suwon 16419 , Korea.,School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , China
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33
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Tomilov YV, Menchikov LG, Novikov RA, Ivanova OA, Trushkov IV. Methods for the synthesis of donor-acceptor cyclopropanes. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4787] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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34
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Abstract
Cyclopropanes have gained much attention by virtue of their interesting structure and unique reactivity. This review discusses the recent advances in the synthesis of cyclopropanes, and some of the related applications will be discussed.
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Affiliation(s)
- Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- Guangdong Engineering Research Center for Green Fine Chemicals
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
| | - Zhiming Lin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- Guangdong Engineering Research Center for Green Fine Chemicals
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- Guangdong Engineering Research Center for Green Fine Chemicals
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
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35
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Edwards A, Rubina M, Rubin M. Directed Rh
I
‐Catalyzed Asymmetric Hydroboration of Prochiral 1‐Arylcycloprop‐2‐Ene‐1‐Carboxylic Acid Derivatives. Chemistry 2017; 24:1394-1403. [DOI: 10.1002/chem.201704443] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Indexed: 12/28/2022]
Affiliation(s)
- Andrew Edwards
- Department of Chemistry University of Kansas 1251 Wescoe Hall Drive Lawrence Kansas 66045 USA
| | - Marina Rubina
- Department of Chemistry University of Kansas 1251 Wescoe Hall Drive Lawrence Kansas 66045 USA
- Peoples' Friendship University of Russia 6 Miklukho-Maklaya St. Moscow 117198 Russian Federation
| | - Michael Rubin
- Department of Chemistry University of Kansas 1251 Wescoe Hall Drive Lawrence Kansas 66045 USA
- Department of Chemistry North Caucasus Federal University 1a Pushkin St. Stavropol 355009 Russian Federation
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36
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Kang BC, Shin SH, Yun J, Ryu DH. Highly Enantioselective Hydrosilylation of Ketones Catalyzed by a Chiral Oxazaborolidinium Ion. Org Lett 2017; 19:6316-6319. [PMID: 29154545 DOI: 10.1021/acs.orglett.7b03076] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A highly enantioselective hydrosilylation of ketones was developed for the synthesis of a variety of chiral secondary alcohols. In the presence of a chiral oxazaborolidinium ion (COBI) catalyst, the reaction proceeded with good yields (up to 99%) with excellent enantioselectivities (up to 99% ee).
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Affiliation(s)
- Byung Chul Kang
- Department of Chemistry, Sungkyunkwan University , Suwon, 16419, Korea
| | - Sung Ho Shin
- Department of Chemistry, Sungkyunkwan University , Suwon, 16419, Korea
| | - Jaesook Yun
- Department of Chemistry, Sungkyunkwan University , Suwon, 16419, Korea
| | - Do Hyun Ryu
- Department of Chemistry, Sungkyunkwan University , Suwon, 16419, Korea
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37
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Kim JY, Kang BC, Ryu DH. Catalytic Asymmetric Roskamp Reaction of Silyl Diazoalkane: Synthesis of Enantioenriched α-Silyl Ketone. Org Lett 2017; 19:5936-5939. [PMID: 29052993 DOI: 10.1021/acs.orglett.7b02928] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A catalytic enantioselective Roskamp reaction of silyl diazoalkane to synthesize a highly optically active α-silyl ketone from aldehydes is described. In the presence of a chiral oxazaborolidinium ion catalyst, the reaction provides α-chiral silyl ketones with good yields (up to 97%) and high enantioselectivities (up to >99% ee). In addition, a one-pot procedure using an asymmetric Roskamp/reduction strategy gives highly optically active syn-β-hydroxysilane in good yields (up to 94%) with high enantioselectivities (up to 99% ee) and syn stereoselectivities (>20:1).
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Affiliation(s)
- Jae Yeon Kim
- Department of Chemistry, Sungkyunkwan University , Suwon, 440-746, Korea
| | - Byung Chul Kang
- Department of Chemistry, Sungkyunkwan University , Suwon, 440-746, Korea
| | - Do Hyun Ryu
- Department of Chemistry, Sungkyunkwan University , Suwon, 440-746, Korea
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38
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Zhong X, Lv J, Luo S. Enantio- and Diastereoselective Cyclopropanation of β,γ-Unsaturated α-Ketoester by a Chiral Phosphate/Indium(III) Complex. Org Lett 2017; 19:3331-3334. [DOI: 10.1021/acs.orglett.7b01577] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xingren Zhong
- Key
Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian Lv
- Key
Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Collaborative Innovation Center of Chemical and Engineering (Tianjin), Tianjin 300071, China
| | - Sanzhong Luo
- Key
Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Collaborative Innovation Center of Chemical and Engineering (Tianjin), Tianjin 300071, China
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39
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Shim SY, Cho SM, Venkateswarlu A, Ryu DH. Catalytic Enantioselective Synthesis of 2,5-Dihydrooxepines. Angew Chem Int Ed Engl 2017; 56:8663-8666. [DOI: 10.1002/anie.201700890] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Su Yong Shim
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
| | - Soo Min Cho
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
| | | | - Do Hyun Ryu
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
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40
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Shim SY, Cho SM, Venkateswarlu A, Ryu DH. Catalytic Enantioselective Synthesis of 2,5-Dihydrooxepines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700890] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Su Yong Shim
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
| | - Soo Min Cho
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
| | | | - Do Hyun Ryu
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
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41
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Kang KT, Kim ST, Hwang GS, Ryu DH. Catalytic Enantioselective Protonation/Nucleophilic Addition of Diazoesters with Chiral Oxazaborolidinium Ion Activated Carboxylic Acids. Angew Chem Int Ed Engl 2017; 56:3977-3981. [DOI: 10.1002/anie.201612655] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Ki-Tae Kang
- Department of Chemistry; Sungkyunkwan University; 300, Cheoncheon, Jangan Suwon 16419 Korea
- Western Seoul Center; Korea Basic Science Institute; 150, Bugahyeon-ro, Seodaemun-gu Seoul 03759 Korea
| | - Seung Tae Kim
- Department of Chemistry; Sungkyunkwan University; 300, Cheoncheon, Jangan Suwon 16419 Korea
| | - Geum-Sook Hwang
- Western Seoul Center; Korea Basic Science Institute; 150, Bugahyeon-ro, Seodaemun-gu Seoul 03759 Korea
| | - Do Hyun Ryu
- Department of Chemistry; Sungkyunkwan University; 300, Cheoncheon, Jangan Suwon 16419 Korea
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42
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Kang KT, Kim ST, Hwang GS, Ryu DH. Catalytic Enantioselective Protonation/Nucleophilic Addition of Diazoesters with Chiral Oxazaborolidinium Ion Activated Carboxylic Acids. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612655] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ki-Tae Kang
- Department of Chemistry; Sungkyunkwan University; 300, Cheoncheon, Jangan Suwon 16419 Korea
- Western Seoul Center; Korea Basic Science Institute; 150, Bugahyeon-ro, Seodaemun-gu Seoul 03759 Korea
| | - Seung Tae Kim
- Department of Chemistry; Sungkyunkwan University; 300, Cheoncheon, Jangan Suwon 16419 Korea
| | - Geum-Sook Hwang
- Western Seoul Center; Korea Basic Science Institute; 150, Bugahyeon-ro, Seodaemun-gu Seoul 03759 Korea
| | - Do Hyun Ryu
- Department of Chemistry; Sungkyunkwan University; 300, Cheoncheon, Jangan Suwon 16419 Korea
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Duan YN, Zhang Z, Zhang C. Recyclable Hypervalent-Iodine-Mediated Dehydrogenative Cyclopropanation under Metal-Free Conditions. Org Lett 2016; 18:6176-6179. [DOI: 10.1021/acs.orglett.6b03209] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ya-Nan Duan
- State Key Laboratory of Elemento-Organic
Chemsitry, Collaborative Innovation Center of Chemical Science and
Engineering (Tianjin), Nankai University, Tianjin 300071, P. R. China
| | - Zhao Zhang
- State Key Laboratory of Elemento-Organic
Chemsitry, Collaborative Innovation Center of Chemical Science and
Engineering (Tianjin), Nankai University, Tianjin 300071, P. R. China
| | - Chi Zhang
- State Key Laboratory of Elemento-Organic
Chemsitry, Collaborative Innovation Center of Chemical Science and
Engineering (Tianjin), Nankai University, Tianjin 300071, P. R. China
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Gómez-Martínez M, Alonso DA, Pastor IM, Guillena G, Baeza A. Organocatalyzed Assembly of Chlorinated Quaternary Stereogenic Centers. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600404] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Melania Gómez-Martínez
- Organic Chemistry Department and Organic Synthesis Institute; University of Alicante; Apdo. 99 E-03080- Alicante Spain
| | - Diego A. Alonso
- Organic Chemistry Department and Organic Synthesis Institute; University of Alicante; Apdo. 99 E-03080- Alicante Spain
| | - Isidro M. Pastor
- Organic Chemistry Department and Organic Synthesis Institute; University of Alicante; Apdo. 99 E-03080- Alicante Spain
| | - Gabriela Guillena
- Organic Chemistry Department and Organic Synthesis Institute; University of Alicante; Apdo. 99 E-03080- Alicante Spain
| | - Alejandro Baeza
- Organic Chemistry Department and Organic Synthesis Institute; University of Alicante; Apdo. 99 E-03080- Alicante Spain
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Zha GF, Han JB, Hu XQ, Qin HL, Fang WY, Zhang CP. Silver-mediated direct trifluoromethoxylation of α-diazo esters via the (-)OCF3 anion. Chem Commun (Camb) 2016; 52:7458-61. [PMID: 27121103 DOI: 10.1039/c6cc03040h] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Silver-mediated direct trifluoromethoxylation of α-diazo esters and ketosteroid was disclosed. The reactions of alkyl α-diazo arylacetates with AgOCF3 or CF3SO2OCF3/AgF at -30 to 10 °C under a N2 atmosphere provided α-trifluoromethoxyl arylacetates in up to 90% yield, while alkyl α-diazo vinylacetates reacting with CF3SO2OCF3/AgF or AgOCF3 afforded γ-trifluoromethoxyl α,β-unsaturated esters in up to 94% yield. The α-diazo ketosteroid was also trifluoromethoxylated under the standard reaction conditions. This protocol allows for an effective and convenient access to a large number of synthetic building blocks, which are promising in the development of new functional OCF3-molecules.
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Affiliation(s)
- Gao-Feng Zha
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 40003, China.
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Pons A, Ivashkin P, Poisson T, Charette AB, Pannecoucke X, Jubault P. Catalytic Enantioselective Synthesis of Halocyclopropanes. Chemistry 2016; 22:6239-42. [DOI: 10.1002/chem.201600649] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Amandine Pons
- Normandie Univ., COBRA, UMR 6014 et FR 3038; Univ. Rouen, INSA Rouen, CNRS; 1 rue Tesnière 76821 Mont Saint-Aignan Cedex France
| | - Pavel Ivashkin
- Normandie Univ., COBRA, UMR 6014 et FR 3038; Univ. Rouen, INSA Rouen, CNRS; 1 rue Tesnière 76821 Mont Saint-Aignan Cedex France
| | - Thomas Poisson
- Normandie Univ., COBRA, UMR 6014 et FR 3038; Univ. Rouen, INSA Rouen, CNRS; 1 rue Tesnière 76821 Mont Saint-Aignan Cedex France
| | - André B. Charette
- Centre in Green Chemistry and Catalysis; Faculty of Arts and Sciences; Department of Chemistry; Université de Montréal; PO Box 6128, Station Downtown Montréal Québec H3C 3J7 Canada
| | - Xavier Pannecoucke
- Normandie Univ., COBRA, UMR 6014 et FR 3038; Univ. Rouen, INSA Rouen, CNRS; 1 rue Tesnière 76821 Mont Saint-Aignan Cedex France
| | - Philippe Jubault
- Normandie Univ., COBRA, UMR 6014 et FR 3038; Univ. Rouen, INSA Rouen, CNRS; 1 rue Tesnière 76821 Mont Saint-Aignan Cedex France
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Chi Y, Qiu L, Xu X. Highly enantioselective synthesis of spirocyclopropyloxindoles via a Rh(ii)-catalyzed asymmetric cyclopropanation reaction. Org Biomol Chem 2016; 14:10357-10361. [DOI: 10.1039/c6ob02160c] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An asymmetric cyclopropanation reaction of N-Boc diazooxindoles is described with good to excellent enantioselectivities, especially with alkyl alkenes (>90% ee).
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Affiliation(s)
- Yongjian Chi
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- P. R. China
| | - Lihua Qiu
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- P. R. China
| | - Xinfang Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province; College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- P. R. China
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