51
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Zhang H, Zhu C. Iron-catalyzed cascade cyanoalkylation/radical dearomatization of N-phenylcinnamamides: access to cyanoalkylated 1-azaspiro[4.5]decanes. Org Chem Front 2017. [DOI: 10.1039/c7qo00157f] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An iron-catalyzed tandem cyanoalkylative dearomatization of N-(4-hydroxyphenyl)-cinnamamides via C(sp3)–H functionalization of nitriles with excellent regioselectivity and diastereoselectivity was developed.
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Affiliation(s)
- Honglin Zhang
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Chengjian Zhu
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
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52
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Stereoselective synthesis of diazaspiro[5.5]undecane derivatives via base promoted [5+1] double Michael addition of N,N-dimethylbarbituric acid to diaryliedene acetones. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2015.03.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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53
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Uyanik M, Sasakura N, Mizuno M, Ishihara K. Enantioselective Synthesis of Masked Benzoquinones Using Designer Chiral Hypervalent Organoiodine(III) Catalysis. ACS Catal 2016. [DOI: 10.1021/acscatal.6b03380] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Muhammet Uyanik
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Niiha Sasakura
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Masahiro Mizuno
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
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54
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Jin H, Cho SM, Hwang GS, Ryu DH. Construction of 3,4-Dihydrocoumarin Derivatives with Adjacent Quaternary and Tertiary Stereocenters: Organocatalytic Asymmetric Michael Addition of 2-Oxochroman-3-carboxylate Esters totrans-β-Nitroolefins. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600825] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Hui Jin
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
| | - Soo Min Cho
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
| | - Geum-Sook Hwang
- Western Seoul Center; Korea Basic Science Institute; Seoul 120-140 Korea
| | - Do Hyun Ryu
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
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55
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Rodríguez-Mata M, Lavandera I, Gotor-Fernández V, Gotor V, García-Cerrada S, Mendiola J, de Frutos Ó, Collado I. Baeyer–Villiger monooxygenase-catalyzed desymmetrizations of cyclobutanones. Application to the synthesis of valuable spirolactones. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.12.071] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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56
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Zha D, Li H, Wang L. Silver-Promoted Cascade Reaction of 4-Hydroxycoumarins with α-Keto Acids under Microwave Irradiation: One-Step Construction of Quaternary Stereocenters. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600754] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Dandan Zha
- Department of Chemistry; Huaibei Normal University; 235000 Huaibei Anhui P. R. China
| | - Hongji Li
- Department of Chemistry; Huaibei Normal University; 235000 Huaibei Anhui P. R. China
| | - Lei Wang
- Department of Chemistry; Huaibei Normal University; 235000 Huaibei Anhui P. R. China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; 200032 Shanghai P. R. China
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57
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Ko TY, Youn SW. Cooperative Indium(III)/Silver(I) System for Oxidative Coupling/Annulation of 1,3-Dicarbonyls and Styrenes: Construction of Five-Membered Heterocycles. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600280] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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58
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López-Reyes ME, Toscano RA, López-Cortés JG, Alvarez-Toledano C. Fast and Efficient Synthesis ofZ-Enol-γ-Lactones through a Cycloisomerization Reaction of β-Hydroxy-γ-Alkynoic Acids Catalyzed by Copper(I) under Microwave Heating in Water. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Morelia E. López-Reyes
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior, Ciudad Universitaria Coyoacán C.P. 04360 México D.F. Mexico
| | - R. Alfredo Toscano
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior, Ciudad Universitaria Coyoacán C.P. 04360 México D.F. Mexico
| | - José G. López-Cortés
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior, Ciudad Universitaria Coyoacán C.P. 04360 México D.F. Mexico
| | - Cecilio Alvarez-Toledano
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior, Ciudad Universitaria Coyoacán C.P. 04360 México D.F. Mexico
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59
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Uyanik M, Sasakura N, Kuwahata M, Ejima Y, Ishihara K. Practical Oxidative Dearomatization of Phenols with Sodium Hypochlorite Pentahydrate. CHEM LETT 2015. [DOI: 10.1246/cl.141130] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | | | | | | | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University
- Japan Science and Technology Agency (JST), CREST, Nagoya University
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60
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Uyanik M, Sasakura N, Kaneko E, Ohori K, Ishihara K. Chiral Ammonium Hypoiodite-catalyzed Enantioselective Oxidative Dearomatization of 1-Naphthols Using Hydrogen Peroxide. CHEM LETT 2015. [DOI: 10.1246/cl.141012] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
| | | | - Erina Kaneko
- Graduate School of Engineering, Nagoya University
| | - Kento Ohori
- Graduate School of Engineering, Nagoya University
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University
- Japan Science and Technology Agency (JST), CREST, Nagoya University
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61
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Fan L, Takizawa S, Takeuchi Y, Takenaka K, Sasai H. Pd-catalyzed enantioselective intramolecular α-arylation of α-substituted cyclic ketones: facile synthesis of functionalized chiral spirobicycles. Org Biomol Chem 2015; 13:4837-40. [DOI: 10.1039/c5ob00382b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Synthesis of chiral spirocyclic ketones was accomplishedviathe Pd-catalyzed intramolecular α-arylation of α-substituted cyclic ketones. The obtained spirocyclic ketone could be converted into an acid–base organocatalyst.
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Affiliation(s)
- Lulu Fan
- The Institute of Scientific and Industrial Research (ISIR)
- Osaka University
- Osaka 567-0047
- Japan
| | - Shinobu Takizawa
- The Institute of Scientific and Industrial Research (ISIR)
- Osaka University
- Osaka 567-0047
- Japan
| | - Yoshiki Takeuchi
- The Institute of Scientific and Industrial Research (ISIR)
- Osaka University
- Osaka 567-0047
- Japan
| | - Kazuhiro Takenaka
- The Institute of Scientific and Industrial Research (ISIR)
- Osaka University
- Osaka 567-0047
- Japan
| | - Hiroaki Sasai
- The Institute of Scientific and Industrial Research (ISIR)
- Osaka University
- Osaka 567-0047
- Japan
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62
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Akai S, Egi M. Transition Metal-Catalyzed Intramolecular Cyclization of Propargyl Alcohols and Their Derivatives for the Synthesis of Highly Substituted Five-Membered Oxygen Heterocycles. HETEROCYCLES 2015. [DOI: 10.3987/rev-15-818] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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63
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Zheng W, Zhang J, Liu S, Yu C, Miao Z. Asymmetric synthesis of spiro[chroman-3,3′-pyrazol] scaffolds with an all-carbon quaternary stereocenter via a oxa-Michael–Michael cascade strategy with bifunctional amine-thiourea organocatalysts. RSC Adv 2015. [DOI: 10.1039/c5ra17792h] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The chiral spiro[chroman-3,3′-pyrazol] derivatives have been synthesized through a catalytic oxa-Michael–Michael cascade reaction of 2-hydroxynitrostyrenes with 4-alkenyl pyrazolin-3-ones in good yields with moderate to high stereoselectivities.
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Affiliation(s)
- Weiping Zheng
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Jiayong Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Shuang Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Chengbin Yu
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Zhiwei Miao
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
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64
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Tnay YL, Chiba S. Copper-Catalyzed Aerobic CC Bond Cleavage of Lactols with N-Hydroxy Phthalimide for Synthesis of Lactones. Chem Asian J 2014; 10:873-7. [DOI: 10.1002/asia.201403196] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 11/03/2014] [Indexed: 12/20/2022]
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65
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Fu J, Shen H, Chang Y, Li C, Gong J, Yang Z. Concise Stereoselective Synthesis of Oxaspirocycles with 1-Tosyl-1,2,3-triazoles: Application to the Total Syntheses of (±)-Tuberostemospiroline and (±)-Stemona-lactam R. Chemistry 2014; 20:12881-8. [DOI: 10.1002/chem.201403756] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Indexed: 01/16/2023]
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66
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Wu X, Shirakawa S, Maruoka K. Efficient asymmetric synthesis of spiro-2(3H)-furanones via phase-transfer-catalyzed alkynylation. Org Biomol Chem 2014; 12:5388-92. [DOI: 10.1039/c4ob00969j] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient asymmetric synthesis of spiro-2(3H)-furanones was achieved via chiral phase-transfer-catalyzed alkynylation.
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Affiliation(s)
- Xiangfei Wu
- Laboratory of Synthetic Organic Chemistry and Special Laboratory of Organocatalytic Chemistry
- Department of Chemistry
- Graduate School of Science
- Kyoto University
- Kyoto, Japan
| | - Seiji Shirakawa
- Laboratory of Synthetic Organic Chemistry and Special Laboratory of Organocatalytic Chemistry
- Department of Chemistry
- Graduate School of Science
- Kyoto University
- Kyoto, Japan
| | - Keiji Maruoka
- Laboratory of Synthetic Organic Chemistry and Special Laboratory of Organocatalytic Chemistry
- Department of Chemistry
- Graduate School of Science
- Kyoto University
- Kyoto, Japan
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67
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Bouanou H, Tapia R, Cano MJ, Ramos JM, Alvarez E, Boulifa E, Dahdouh A, Mansour AI, Alvarez-Manzaneda R, Chahboun R, Alvarez-Manzaneda E. The first synthesis of (−)-isoambreinolide, (+)-vitexifolin D and (+)-vitedoin B. Org Biomol Chem 2014; 12:667-72. [DOI: 10.1039/c3ob42122h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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68
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Drujon J, Rahmani R, Héran V, Blanc R, Carissan Y, Tuccio B, Commeiras L, Parrain JL. trans-1,2-Disiloxybenzocyclobutene, an adequate partner for the auto-oxidation: EPR/spin trapping and theoretical studies. Phys Chem Chem Phys 2014; 16:7513-20. [DOI: 10.1039/c3cp55077j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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69
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McInturff EL, Mowat J, Waldeck AR, Krische MJ. Ruthenium-catalyzed hydrohydroxyalkylation of acrylates with diols and α-hydroxycarbonyl compounds to form spiro- and α-methylene-γ-butyrolactones. J Am Chem Soc 2013; 135:17230-5. [PMID: 24187991 DOI: 10.1021/ja410533y] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Under the conditions of ruthenium(0)-catalyzed hydrohydroxyalkylation, vicinal diols 1a-1l and methyl acrylate 2a are converted to the corresponding lactones 3a-3l in good to excellent yield. The reactions of methyl acrylate 2a with hydrobenzoin 1f, benzoin didehydro-1f, and benzil tetradehydro-1f form the same lactone 3f product, demonstrating that this process may be deployed in a redox level-independent manner. A variety of substituted acrylic esters 2a-2h participate in spirolactone formation, as illustrated in the conversion of N-benzyl-3-hydroxyoxindole 1o to cycloadducts 4a-4h. Hydrohydroxyalkylation of hydroxyl-substituted methacrylate 2i with diols 1b, 1f, 1j, and 1l forms α-exo-methylene-γ-butyrolactones 5b, 5f, 5j, and 5l in moderate to good yield. A catalytic cycle involving 1,2-dicarbonyl-acrylate oxidative coupling to form oxaruthenacyclic intermediates is postulated. A catalytically competent mononuclear ruthenium(II) complex was characterized by single-crystal X-ray diffraction. The influence of electronic effects on regioselectivity in reactions of nonsymmetric diols was probed using para-substituted 1-phenyl-1,2-propanediols 1g, 1m, and 1n and density functional theory calculations.
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Affiliation(s)
- Emma L McInturff
- Department of Chemistry and Biochemistry, University of Texas at Austin , Austin, Texas 78712, United States
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70
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Géant PY, Urban M, Remeš M, Císařová I, Veselý J. Enantioselective Organocatalytic Synthesis of Sulfur-Containing Spirocyclic Compounds. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300931] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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71
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Kachkovskyi G, Faderl C, Reiser O. Visible Light-Mediated Synthesis of (Spiro)anellated Furans. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300221] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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72
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Egi M, Ota Y, Nishimura Y, Shimizu K, Azechi K, Akai S. Efficient Intramolecular Cyclizations of Phenoxyethynyl Diols into Multisubstituted α,β-Unsaturated Lactones. Org Lett 2013; 15:4150-3. [DOI: 10.1021/ol401824v] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Masahiro Egi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Yuya Ota
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Yuka Nishimura
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Kaori Shimizu
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Kenji Azechi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Shuji Akai
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
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73
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Uyanik M, Yasui T, Ishihara K. Hydrogen bonding and alcohol effects in asymmetric hypervalent iodine catalysis: enantioselective oxidative dearomatization of phenols. Angew Chem Int Ed Engl 2013; 52:9215-8. [PMID: 23873650 DOI: 10.1002/anie.201303559] [Citation(s) in RCA: 182] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 05/24/2013] [Indexed: 01/05/2023]
Affiliation(s)
- Muhammet Uyanik
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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74
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Uyanik M, Yasui T, Ishihara K. Hydrogen Bonding and Alcohol Effects in Asymmetric Hypervalent Iodine Catalysis: Enantioselective Oxidative Dearomatization of Phenols. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303559] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Muhammet Uyanik
- Graduate School of Engineering, Nagoya University, Furo‐cho, Chikusa‐ku, Nagoya 464‐8603 (Japan) http://www.ishihara‐lab.net/
| | - Takeshi Yasui
- Graduate School of Engineering, Nagoya University, Furo‐cho, Chikusa‐ku, Nagoya 464‐8603 (Japan) http://www.ishihara‐lab.net/
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University, Furo‐cho, Chikusa‐ku, Nagoya 464‐8603 (Japan) http://www.ishihara‐lab.net/
- Japan Science and Technology Agency (JST), CREST (Japan)
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75
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Asymmetric organocatalytic Michael–hemiacetalization reaction: access to chiral spiro cis-δ-lactones by in situ oxidation of spiro δ-lactols. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.03.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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76
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Sancibrao P, Gori D, Kouklovsky C, Vincent G. Synthesis of oxaspirannic building blocks by regioselective nitroso-Diels-Alder reactions. Chemistry 2013; 19:5557-60. [PMID: 23508771 DOI: 10.1002/chem.201300195] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Indexed: 11/11/2022]
Abstract
Spirocyclic structures: Nitroso-Diels-Alder reactions of 1,3-disubstituted cyclohexadienes were found to be regiodivergent, depending on the nitroso derivative used. Cycloaddition with Wightman's chloronitroso derivative was totally regio- and stereoselective. This methodology was applied to the synthesis of heterospiranic frameworks after N-O bond cleavage and cyclization (see scheme; Boc=tert-butoxycarbonyl, Tf=trifluoromethanesulfonyl).
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Affiliation(s)
- Pierre Sancibrao
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, Université de Paris-Sud, Orsay, France
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77
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Rodier F, Rajzmann M, Parrain JL, Chouraqui G, Commeiras L. Diastereoselective Access to Polyoxygenated Polycyclic Spirolactones through a Rhodium-Catalyzed [3+2] Cycloaddition Reaction: Experimental and Theoretical Studies. Chemistry 2013; 19:2467-77. [DOI: 10.1002/chem.201203155] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 10/23/2012] [Indexed: 11/10/2022]
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78
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Duan J, Cao F, Wang X, Ma C. A tertiary amine catalyzed carbocyclization sequence to furnish spirocyclo hexene systems having vicinal quaternary stereocenters. Chem Commun (Camb) 2013; 49:1124-6. [DOI: 10.1039/c2cc37297e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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79
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Tuo S, Liu X, Huang P. Towards Stereochemical Control: Two Approaches for the Highlyanti-Diastereoselective Construction of the Spirolactone Moieties of SomeStemonaAlkaloids. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201200904] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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80
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Luo X, Wang L, Peng L, Bai J, Jia L, Tian F, Xu X, Wang L. Organocatalytic Asymmetric Double Michael Reaction of Benzofuranone with Dienones to Construct Spirocyclic Benzofuranones. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201200676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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81
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Qiu R, Xu X, Peng L, Zhao Y, Li N, Yin S. Strong Lewis Acids of Air-Stable Metallocene Bis(perfluorooctanesulfonate)s as High-Efficiency Catalysts for Carbonyl-Group Transformation Reactions. Chemistry 2012; 18:6172-82. [DOI: 10.1002/chem.201103874] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2011] [Indexed: 11/07/2022]
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82
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Deng QH, Wadepohl H, Gade LH. Highly Enantioselective Copper-Catalyzed Alkylation of β-Ketoesters and Subsequent Cyclization to Spirolactones/Bi-spirolactones. J Am Chem Soc 2012; 134:2946-9. [DOI: 10.1021/ja211859w] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qing-Hai Deng
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg,
Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg,
Germany
| | - Lutz H. Gade
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg,
Germany
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83
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Hempel C, Weckenmann NM, Maichle-Moessmer C, Nachtsheim BJ. A hypervalent iodine-mediated spirocyclization of 2-(4-hydroxybenzamido)acrylates – unexpected formation of δ-spirolactones. Org Biomol Chem 2012; 10:9325-9. [DOI: 10.1039/c2ob26815a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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84
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Uyanik M, Ishihara K. Conformationally-Flexible Chiral Hypervalent Organoiodine Catalysts for Enantioselective Oxidative Transformations. J SYN ORG CHEM JPN 2012. [DOI: 10.5059/yukigoseikyokaishi.70.1116] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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85
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Dubois S, Rodier F, Blanc R, Rahmani R, Héran V, Thibonnet J, Commeiras L, Parrain JL. Dramatic influence of the substitution of alkylidene-5H-furan-2-ones in Diels–Alder cycloadditions with o-quinonedimethide as diene partner: en route to the CDEF polycyclic ring system of lactonamycin. Org Biomol Chem 2012; 10:4712-9. [DOI: 10.1039/c2ob25299f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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86
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Bartoli A, Chouraqui G, Parrain JL. Collective Domino Approach toward the Core of Molecules Isolated from the Genus Schisandra. Org Lett 2011; 14:122-5. [DOI: 10.1021/ol2029146] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexandra Bartoli
- Institut des Sciences Moléculaires de Marseille, Aix-Marseille Université, iSm2-UMR CNRS 6263, Campus Saint Jérôme, Service 532, 13397 Marseille Cedex 20, France
| | - Gaëlle Chouraqui
- Institut des Sciences Moléculaires de Marseille, Aix-Marseille Université, iSm2-UMR CNRS 6263, Campus Saint Jérôme, Service 532, 13397 Marseille Cedex 20, France
| | - Jean-Luc Parrain
- Institut des Sciences Moléculaires de Marseille, Aix-Marseille Université, iSm2-UMR CNRS 6263, Campus Saint Jérôme, Service 532, 13397 Marseille Cedex 20, France
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87
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Abstract
The so-called Deslongchamps annulation of deprotonated γ,δ-unsaturated β-ketoesters 15 to 2-(alkoxycarbonyl)cyclohex-2-en-1-ones or similarly activated cyclohex-2-en-1-ones offers a versatile access to various kinds of decalindiones. The scope of Deslongchamps annulations was extended by establishing acceptor-substituted benzoquinone monoketals such as 13 as viable substrates. They gave octalindiones such as 35 with diastereoselectivities ≥ 95:5.
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Affiliation(s)
- Denis Petrović
- Institut für Organische Chemie und Biochemie, Albert-Ludwigs-Universität, Albertstr. 21, 79104 Freiburg im Breisgau, Germany
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88
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Hong BC, Kotame P, Lee GH. Asymmetric Synthesis of 3,4-Dihydrocoumarin Motif with an All-Carbon Quaternary Stereocenter via a Michael–Acetalization Sequence with Bifunctional Amine-thiourea Organocatalysts. Org Lett 2011; 13:5758-61. [DOI: 10.1021/ol202331j] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Bor-Cherng Hong
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Prakash Kotame
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Gene-Hsiang Lee
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
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89
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Sternativo S, Calandriello A, Costantino F, Testaferri L, Tiecco M, Marini F. A Highly Enantioselective One-Pot Synthesis of Spirolactones by an Organocatalyzed Michael Addition/Cyclization Sequence. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201104819] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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90
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Sternativo S, Calandriello A, Costantino F, Testaferri L, Tiecco M, Marini F. A highly enantioselective one-pot synthesis of spirolactones by an organocatalyzed Michael addition/cyclization sequence. Angew Chem Int Ed Engl 2011; 50:9382-5. [PMID: 21858906 DOI: 10.1002/anie.201104819] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Indexed: 01/02/2023]
Affiliation(s)
- Silvia Sternativo
- Dip. Chimica e Tecnologia del Farmaco, Università di Perugia, Perugia, Italy
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91
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Boddaert T, Coquerel Y, Rodriguez J. Combination of Rearrangement with Metallic and Organic Catalyses - a Step- and Atom-Economical Approach to α-Spiroactones and -lactams. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100734] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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