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Kan J, Zhang M, Zhang X, Lou X, Shang Y, Xu B, Yang F, Su W. Oxidation of Enones for Regioselective [3+2] Cycloaddition through γ-Enone Radical Intermediates. Chemistry 2019; 25:15233-15238. [PMID: 31495987 DOI: 10.1002/chem.201903551] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 08/28/2019] [Indexed: 12/20/2022]
Abstract
Herein, an oxidization reaction of enones with a CuII complex that leads to a new type of regioselective [3+2] cycloaddition is reported. Highly functionalized cyclopentenes and spirocyclic compounds are obtained in moderate-to-good yields. This cycloaddition reaction occurred through the formation of γ-enone radicals, providing a rarely explored reactivity pattern for enones.
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Affiliation(s)
- Jian Kan
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155, Fuzhou, Fujian, 350002, P. R. China
| | - Min Zhang
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155, Fuzhou, Fujian, 350002, P. R. China
| | - Xiaofeng Zhang
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155, Fuzhou, Fujian, 350002, P. R. China
| | - Xin Lou
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155, Fuzhou, Fujian, 350002, P. R. China
| | - Yaping Shang
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155, Fuzhou, Fujian, 350002, P. R. China
| | - Biping Xu
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155, Fuzhou, Fujian, 350002, P. R. China
| | - Fanyuanhang Yang
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155, Fuzhou, Fujian, 350002, P. R. China
| | - Weiping Su
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155, Fuzhou, Fujian, 350002, P. R. China
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Ieki R, Kani Y, Tsunoi S, Shibata I. Transition-metal-free coupling reaction of vinylcyclopropanes with aldehydes catalyzed by tin hydride. Chemistry 2015; 21:6295-300. [PMID: 25753150 DOI: 10.1002/chem.201406496] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Indexed: 11/06/2022]
Abstract
Donor-acceptor cyclopropanes are useful building blocks for catalytic cycloaddition reactions with a range of electrophiles to give various cyclic products. In contrast, relatively few methods are available for the synthesis of homoallylic alcohols through coupling of vinylcyclopropanes (VCPs) with aldehydes, even with transition-metal catalysts. Here, we report that the hydrostannation of vinylcyclopropanes (VCPs) was effectively promoted by dibutyliodotin hydride (Bu2 SnIH). The resultant allylic tin compounds reacted easily with aldehydes. Furthermore, the use of Bu2 SnIH was effectively catalytic in the presence of hydrosilane as a hydride source, which established a coupling reaction of VCPs with aldehydes for the synthesis of homoallylic alcohols without the use of transition-metal catalysts. In contrast to conventional catalytic reactions of VCPs, the presented method allowed the use of several VCPs in addition to conventional donor-acceptor cyclopropanes.
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Affiliation(s)
- Ryosuke Ieki
- Research Center for Environmental Preservation, Osaka University, 2-4 Yamadaoka, Suita, Osaka 565-0871 (Japan)
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Tamaki T, Ohashi M, Ogoshi S. [3+2] Cycloaddition Reaction of Cyclopropyl Ketones with Alkynes Catalyzed by Nickel/Dimethylaluminum Chloride. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201106174] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Tamaki T, Ohashi M, Ogoshi S. [3+2] Cycloaddition Reaction of Cyclopropyl Ketones with Alkynes Catalyzed by Nickel/Dimethylaluminum Chloride. Angew Chem Int Ed Engl 2011; 50:12067-70. [DOI: 10.1002/anie.201106174] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Indexed: 11/12/2022]
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Villarino L, López F, Castedo L, Mascareñas J. Palladium-Catalyzed Hydroalkynylation of Alkylidenecyclopropanes. Chemistry 2009; 15:13308-12. [DOI: 10.1002/chem.200901821] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Organische Synthesen mit Übergangsmetallkomplexen, 53 4‐Methylencyclopentene und 5‐Methylencyclohexenone aus „Fischer‐Carben”︁‐ Chromkomplexen, Allenen und Alkine. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/cber.19911241029] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Nakamura E, Yamago S, Ejiri† S. Ein einfacher Weg zu Cyclopentenen durch eine [3 + 2]-Cycloadditionsreaktion zwischen einem dipolaren Trimethylenmethan und Alkinen. Angew Chem Int Ed Engl 1995. [DOI: 10.1002/ange.19951071930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Dzhemilev U, Khusnutdinov R, Tolstikov G. Synthesis of cyclobutane and cyclopentane compounds using homogeneous metal complex catalysts. J Organomet Chem 1991. [DOI: 10.1016/0022-328x(91)86131-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Aumann R, Melchers HD, Weidenhaupt HJ. Organische Synthesen mit Übergansmetallkomplexen, 18 Eine neuartige Carbonyl-Olefinierung mit Allenen durch templatgesteuerte Bildung von (Trimethylenmethan)carbonyleisen-Komplexen. ACTA ACUST UNITED AC 1987. [DOI: 10.1002/cber.19871200105] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Ipaktschi J, Lauterbach G. Intramolekulare Addition von 2-(trimethylsilyl)methyl-substituierten Allylkationen an Doppelbindungen - Synthese von Bicyclo[3.3.0]octan-Derivaten. Angew Chem Int Ed Engl 1986. [DOI: 10.1002/ange.19860980414] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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