1
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Chen N, Zhou T, Zhang H, Zhu Y, Lang M, Wang J, Peng S. Copper-Catalyzed Tandem Cross-Coupling/Thermally Promoted [2 + 2] Cycloaddition of 1,6-Enynes and Diazo Compounds To Assemble Methylenecyclobutane-Fused Ring System. J Org Chem 2021; 86:4714-4732. [PMID: 33667091 DOI: 10.1021/acs.joc.1c00104] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An unprecedented copper-catalyzed tandem reaction of 1,6-enynes with diazo compounds via a cross-coupling/[2 + 2] cycloaddition sequence was reported. A library of methylenecyclobutane-fused ring systems including cyclobuta[b]indolines, cyclobuta[b]benzofuran, benzo[b]cyclobuta[d]thiophene, and bicyclo[3.2.0] structures were obtained in moderate to excellent yields under very mild reaction conditions. The reaction exhibited high proximal-regioselectivity and diastereoselectivity. Moreover, 1,6-allenene has proven to be the key intermediate and proceeds via a thermally promoted [2 + 2] cycloaddition in the absence of copper catalyst.
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Affiliation(s)
- Nuan Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People's Republic of China
| | - Ting Zhou
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People's Republic of China
| | - Hong Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People's Republic of China
| | - Yuqi Zhu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People's Republic of China
| | - Ming Lang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People's Republic of China
| | - Jian Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People's Republic of China.,School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, People's Republic of China
| | - Shiyong Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People's Republic of China
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2
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Storey CM, Kalpokas A, Gyton MR, Krämer T, Chaplin AB. A shape changing tandem Rh(CNC) catalyst: preparation of bicyclo[4.2.0]octa-1,5,7-trienes from terminal aryl alkynes. Chem Sci 2020; 11:2051-2057. [PMID: 32180927 PMCID: PMC7053420 DOI: 10.1039/c9sc06153c] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 01/21/2020] [Indexed: 12/13/2022] Open
Abstract
The preparation of a range of tetraaryl-substituted bicyclo[4.2.0]octa-1,5,7-trienes using a one-pot procedure starting from terminal aryl alkynes and catalysed by a rhodium(i) complex is reported. This synthesis proceeds by a reaction sequence involving head-to-tail homocoupling of the terminal alkyne and zipper annulation of the resulting gem-enyne. The rhodium catalyst employed is notable for the incorporation of a flexible NHC-based pincer ligand, which is suggested to interconvert between mer- and fac-coordination modes to fulfil the orthogonal mechanistic demands of the two transformations. Evidence for this interesting auto-tandem action of the catalyst is provided by reactions of the precatalyst with model substrates, corroborating proposed intermediates in both component cycles, and norbornadiene, which reversibly captures the change in pincer ligand coordination mode, along with a DFT-based computational analysis.
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Affiliation(s)
- Caroline M Storey
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , UK .
| | - Audrius Kalpokas
- Department of Chemistry , Maynooth University , Maynooth , Co. Kildare , Ireland .
| | - Matthew R Gyton
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , UK .
| | - Tobias Krämer
- Department of Chemistry , Maynooth University , Maynooth , Co. Kildare , Ireland .
- Hamilton Institute , Maynooth University , Maynooth , Co. Kildare , Ireland
| | - Adrian B Chaplin
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , UK .
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3
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He M, Chen N, Liu L, Zhu Y, Li Q, Li H, Lang M, Wang J, Peng S. Synthesis of 3-Azabicyclo[m.2.0] Ring Systems via a Copper-Catalyzed Cascade Reaction of Diazo Compounds with 1,n-Allenynes. J Org Chem 2020; 85:4418-4429. [DOI: 10.1021/acs.joc.0c00149] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Min He
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
| | - Nuan Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
| | - Lala Liu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
| | - Yuqi Zhu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
| | - Qing Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
| | - Hongguang Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
| | - Ming Lang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
| | - Jian Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, People’s Republic of China
| | - Shiyong Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, People’s Republic of China
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4
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He M, Chen N, Zhou T, Li Q, Li H, Lang M, Wang J, Peng S. Copper-Catalyzed Tandem Cross-Coupling/[2 + 2] Cycloaddition of 1,6-Allenynes with Diazo Compounds to 3-Azabicyclo[5.2.0] Ring Systems. Org Lett 2019; 21:9559-9563. [DOI: 10.1021/acs.orglett.9b03727] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Min He
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Nuan Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Ting Zhou
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Qing Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Hongguang Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Ming Lang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Jian Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, P. R. China
| | - Shiyong Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
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5
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Zhou Y, Nikbakht A, Bauer F, Breit B. A rhodium catalyzed cycloisomerization and tandem Diels-Alder reaction for facile access to diverse bicyclic and tricyclic heterocycles. Chem Sci 2019; 10:4805-4810. [PMID: 31183033 PMCID: PMC6521805 DOI: 10.1039/c9sc00980a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 04/01/2019] [Indexed: 01/10/2023] Open
Abstract
A rhodium catalyzed cycloisomerization of 1,6-allenenes successfully prepared six-membered ring exocyclic 1,3-dienes. Further tandem Diels–Alder reaction with various dienophiles provided diverse bicyclic and tricyclic heterocycles. This methodology is characterised by complete atom and step economy, low catalyst loading, and excellent chemo-, regio-, and diastereoselectivity.
A regioselective distal cycloisomerization of 1,6-allenenes was successfully developed to afford six-membered ring exocyclic 1,3-dienes employing a rhodium/diphosphine catalyst system. Deuterium labelling experiments and DFT calculations were performed to provide insights into the reaction mechanism of this unprecedented transformation. In addition, one-pot tandem Diels–Alder reactions with various dienophiles could readily construct diverse bicyclic and tricyclic nitrogen heterocycles, which are ubiquitous core scaffolds for a variety of natural products and bioactives. High efficiency and exclusive chemo and regioselectivities for a broad substrate scope were achieved under mild conditions using a low catalyst loading of 0.5 mol%.
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Affiliation(s)
- Yirong Zhou
- Institut für Organische Chemie und Biochemie , Albert-Ludwigs-Universität , Alberstr. 21 , 79104 Freiburg , Germany . .,Key Laboratory of Functional Small Organic Molecules , Ministry of Education , College of Chemistry and Chemical Engineering , Jiangxi Normal University , Nanchang , 330022 , China
| | - Ali Nikbakht
- Institut für Organische Chemie und Biochemie , Albert-Ludwigs-Universität , Alberstr. 21 , 79104 Freiburg , Germany .
| | - Felix Bauer
- Institut für Organische Chemie und Biochemie , Albert-Ludwigs-Universität , Alberstr. 21 , 79104 Freiburg , Germany .
| | - Bernhard Breit
- Institut für Organische Chemie und Biochemie , Albert-Ludwigs-Universität , Alberstr. 21 , 79104 Freiburg , Germany .
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6
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Polák P, Tobrman T. Novel Selective Approach to Terminally Substituted [n
]Dendralenes. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801522] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Peter Polák
- Department of Organic Chemistry; University of Chemistry and Technology Prague; Technická 5 16628 Prague 6 Czech Republic
| | - Tomáš Tobrman
- Department of Organic Chemistry; University of Chemistry and Technology Prague; Technická 5 16628 Prague 6 Czech Republic
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7
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Quirós MT, Hurtado-Rodrigo C, Muñoz MP. Nucleophile dependent formation of 6- and 7-membered N-heterocycles by platinum-catalysed cyclisation of 1,5-bisallenes. Org Biomol Chem 2017; 15:6731-6737. [PMID: 28782779 DOI: 10.1039/c7ob01469d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An unprecedented Pt-catalysed cyclisation of N-tethered 1,5-bisallenes in the presence of oxygen nucleophiles is reported, where formation of 6- or 7-membered rings is driven by the choice of nucleophile and the mechanism dictated by the nucleophile and the electronic properties of the bisallene. The reaction in the presence of alcohols gives preferentially vinyltetrahydropyridines with an extra alkoxy group and Pt-H as the active species in the catalytic cycle, while formation of di- and tetrahydroazepines with an extra hydroxyl group is favoured when water is used as nucleophile, via nucleophilic attack/carbocyclization as the favoured pathway. The products obtained are frequently found in the core of natural products with important biological activities, so understanding this complex mechanistic behaviour and exploiting this new methodology will have a big impact in organic synthesis and organometallic chemistry.
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8
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Mukai C. Creation of Novel Cyclization Methods Using sp-Hybridized Carbon Units and Syntheses of Bioactive Compounds. Chem Pharm Bull (Tokyo) 2017; 65:511-523. [PMID: 28566644 DOI: 10.1248/cpb.c17-00088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Some recent results on the development of new and reliable procedures for the construction of diverse ring systems based on the chemistry of sp-hybridized species, especially allene functionality, are described. This review includes: (i) synthesis of the multi-cyclic skeletons by combination of the π-component of allene with suitable other π-components such as alkyne, alkene, or additional allene under Rh-catalyzed conditions; (ii) synthesis of heterocycles as well as carbocycles by reaction of the sp-hybridized center of allene with some nucleophiles in an endo-mode manner; and (iii) total syntheses of natural products and related compounds from the sp-hybridized starting materials.
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Affiliation(s)
- Chisato Mukai
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University
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9
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Zheng WF, Bora PP, Sun GJ, Kang Q. Rhodium-Catalyzed Regio- and Stereoselective [2 + 2] Cycloaddition of Allenamides. Org Lett 2016; 18:3694-7. [PMID: 27403894 DOI: 10.1021/acs.orglett.6b01731] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A highly regio- and stereoselective Rh-catalyzed intermolecular head-to-head [2 + 2] cycloaddition of allenamides was developed. The intermolecular cycloadducts, trans-dimethylenecyclobutane-1,2-diamine derivatives, were achieved in good yields with high regioselectivity and stereoselectivity.
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Affiliation(s)
- Wei-Feng Zheng
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West, Fuzhou 350002, China.,College of Materials Science and Engineering, Fujian Normal University , Fuzhou 350007, China
| | - Pranjal Protim Bora
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West, Fuzhou 350002, China
| | - Gui-Jun Sun
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West, Fuzhou 350002, China
| | - Qiang Kang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West, Fuzhou 350002, China
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10
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Saglam MF, Alborzi AR, Payne AD, Willis AC, Paddon-Row MN, Sherburn MS. Synthesis and Diels-Alder Reactivity of Substituted [4]Dendralenes. J Org Chem 2016; 81:1461-75. [PMID: 26757131 DOI: 10.1021/acs.joc.5b02583] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The first synthesis of all five possible monomethylated [4]dendralenes has been achieved via two distinct synthetic strategies. The Diels-Alder chemistry of these new dendralenes (as multidienes) with an electron poor dienophile, N-methylmaleimide (NMM), has been studied. Thus, simply upon mixing the dendralene and an excess of dienophile at ambient temperature in a common solvent, sequences of cycloadditions result in the rapid generation of complex multicyclic products. Distinct product distributions are obtained with differently substituted dendralenes, demonstrating that dendralene substitution influences the pathway followed, when a matrix of mechanistic possibilities exists. Dendralene site selectivities are traced to electronic, steric and conformational effects, thereby allowing predictive tools for applications of substituted dendralenes in future synthetic endeavors.
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Affiliation(s)
- Mehmet F Saglam
- Research School of Chemistry, The Australian National University , Canberra, ACT 2601, Australia
| | - Ali R Alborzi
- Research School of Chemistry, The Australian National University , Canberra, ACT 2601, Australia
| | - Alan D Payne
- Research School of Chemistry, The Australian National University , Canberra, ACT 2601, Australia
| | - Anthony C Willis
- Research School of Chemistry, The Australian National University , Canberra, ACT 2601, Australia
| | - Michael N Paddon-Row
- School of Chemistry, The University of New South Wales , Sydney, NSW 2052, Australia
| | - Michael S Sherburn
- Research School of Chemistry, The Australian National University , Canberra, ACT 2601, Australia
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11
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Fructos MR, Prieto A. [2+2] Cycloaddition reactions promoted by group 11 metal-based catalysts. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.11.031] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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12
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Alcaide B, Almendros P, Aragoncillo C. Cyclization reactions of bis(allenes) for the synthesis of polycarbo(hetero)cycles. Chem Soc Rev 2014; 43:3106-35. [DOI: 10.1039/c3cs60462d] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review presents the reactivity of a variety of substituted bis(allenes) under different reaction conditions, showing the high number of complex structures that can be obtained.
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Affiliation(s)
- Benito Alcaide
- Grupo de Lactamas y Heterociclos Bioactivos
- Departamento de Química Orgánica I, Unidad Asociada al CSIC
- Facultad de Química
- Universidad Complutense de Madrid
- 28040 Madrid, Spain
| | - Pedro Almendros
- Instituto de Química Orgánica General
- IQOG-CSIC
- 28006 Madrid, Spain
| | - Cristina Aragoncillo
- Grupo de Lactamas y Heterociclos Bioactivos
- Departamento de Química Orgánica I, Unidad Asociada al CSIC
- Facultad de Química
- Universidad Complutense de Madrid
- 28040 Madrid, Spain
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13
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Affiliation(s)
- Annette D. Allen
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Thomas T. Tidwell
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
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