1
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Peng CC, Long F, Hu YC, Zhou ZR, Zhang KY, Wang R, Ye MH, Xiao HB, Wu LJ. Radical-Mediated Cascade Spirocyclization of N-Benzylacrylamides with Polyhaloalkanes: Access to Polyhalo-Substituted Azaspirocyclohexadienones. J Org Chem 2022; 87:2740-2747. [PMID: 35089023 DOI: 10.1021/acs.joc.1c02664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A novel and mild metal-free catalyzed radical-mediated cascade spirocyclization of N-benzylacrylamides with polyhaloalkanes is proposed for the preparation of polyhalo-substituted azaspirocyclohexadienones. Notably, polyhaloalkanes are employed as efficient alkyl radical sources via the cleavage of C(sp3)-H bonds. This protocol undergoes a cascade radical addition and intramolecular cyclization/dearomatization process, and enables the easy construction of multiple chemical bonds and a spiro ring in a single reaction.
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Affiliation(s)
- Chuan-Chong Peng
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Fang Long
- Department of Hunan Cuisine, ChangSha Commerce & Tourism College, Changsha 410116, China
| | - Yun-Chu Hu
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Zheng-Rui Zhou
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Kai-Yi Zhang
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Ru Wang
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Meng-Hua Ye
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Hong-Bo Xiao
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China
| | - Li-Jun Wu
- College of Sciences, Central South University of Forestry and Technology, Changsha 410004, China
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2
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Cui WC, Zhao W, Gao M, Liu W, Wang S, Liang Y, Yao ZJ. Diastereoselective Synthesis of Polysubstituted Piperidines through Visible-Light-Driven Silylative Cyclization of Aza-1,6-Dienes: Experimental and DFT Studies. Chemistry 2019; 25:16506-16510. [PMID: 31544271 DOI: 10.1002/chem.201903440] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/19/2019] [Indexed: 01/24/2023]
Abstract
A visible-light-driven radical silylative cyclization of aza-1,6-dienes featuring an acrylonitrile or acrylate moiety and an electron-neutral olefin was developed, which allows for stereoselective synthesis of densely functionalized piperidines in a highly atom-economical manner. Depending on the substitution pattern of the electron-neutral olefin, poor-to-excellent diastereoselectivity was observed. It was suggested that the 6-exo-trig cyclization was initiated by a chemoselective addition of silyl radical toward electron-deficient olefin and the geometry of the remaining olefin is closely associated with the cis-stereoselectivity. DFT calculations supported that a transition state with a cyano group locating at the axial position of the forming piperidine ring might be involved, in which either the increase of 1,3-diaxial repulsion or the lack of hydrogen bonding interaction will diminish diastereoselectivity.
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Affiliation(s)
- Wei-Chen Cui
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Wenxuan Zhao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Ming Gao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Wei Liu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Shaozhong Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Yong Liang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Zhu-Jun Yao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
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3
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Nada T, Yoneshige Y, Ii Y, Matsumoto T, Fujioka H, Shuto S, Arisawa M. Nonmetathesis Heterocycle Formation by Ruthenium-Catalyzed Intramolecular [2 + 2] Cycloaddition of Allenamide-enes to Azabicyclo[3.1.1]heptanes. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00628] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tomomi Nada
- Faculty
of Pharmaceutical Sciences, Hokkaido University, Kita 12, Nishi 6, Kita-ku, Sapporo 060-0812, Japan
| | - Yusuke Yoneshige
- Graduate
School of Pharmaceutical Sciences, Osaka University, Yamada-oka
1-6, Suita, Osaka 565-0871, Japan
| | - Yasuhiro Ii
- Graduate
School of Pharmaceutical Sciences, Osaka University, Yamada-oka
1-6, Suita, Osaka 565-0871, Japan
| | - Takashi Matsumoto
- X-ray Research
Laboratory, Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima, Tokyo 196-8666, Japan
| | - Hiromichi Fujioka
- Graduate
School of Pharmaceutical Sciences, Osaka University, Yamada-oka
1-6, Suita, Osaka 565-0871, Japan
| | - Satoshi Shuto
- Faculty
of Pharmaceutical Sciences, Hokkaido University, Kita 12, Nishi 6, Kita-ku, Sapporo 060-0812, Japan
| | - Mitsuhiro Arisawa
- Faculty
of Pharmaceutical Sciences, Hokkaido University, Kita 12, Nishi 6, Kita-ku, Sapporo 060-0812, Japan
- Graduate
School of Pharmaceutical Sciences, Osaka University, Yamada-oka
1-6, Suita, Osaka 565-0871, Japan
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4
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Diaba F, Martínez-Laporta A, Bonjoch J. Atom transfer radical cyclization of trichloroacetamides to electron-rich acceptors using Grubbs' catalysts: synthesis of the tricyclic framework of FR901483. J Org Chem 2014; 79:9365-72. [PMID: 25203675 DOI: 10.1021/jo501110c] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Intramolecular Kharasch-type additions of trichloroacetamides on anisole and enol acetates catalyzed by Grubbs' ruthenium carbenes are described. This protocol provides access to highly functionalized 2-azaspiro[4.5]decanes, morphan compounds, and the azatricyclic core of FR901483.
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Affiliation(s)
- Faïza Diaba
- Laboratori de Química Orgànica, Facultat de Farmàcia, IBUB, Universitat de Barcelona , Av. Joan XXIII s/n, 08028-Barcelona, Spain
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5
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Liu Y, Zhang JL, Song RJ, Li JH. Visible-Light-Facilitated 5-exo-trigCyclization of 1,6-Dienes with Alkyl Chlorides: Selective Scission of the C(sp3)-H Bond in Alkyl Chlorides. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301849] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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6
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Wdowik T, Samojłowicz C, Jawiczuk M, Malińska M, Woźniak K, Grela K. Ruthenium nitronate complexes as tunable catalysts for olefin metathesis and other transformations. Chem Commun (Camb) 2013; 49:674-6. [DOI: 10.1039/c2cc37385h] [Citation(s) in RCA: 25] [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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7
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Zeng R, Fu C, Ma S. Formal Alkylation of Allenes through Highly Selective Radical Cyclizations of Allene-enes. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201107747] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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8
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Zeng R, Fu C, Ma S. Formal alkylation of allenes through highly selective radical cyclizations of allene-enes. Angew Chem Int Ed Engl 2012; 51:3888-91. [PMID: 22396109 DOI: 10.1002/anie.201107747] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Indexed: 11/08/2022]
Abstract
Something radical: the first example of alkene-to-allene radical cyclization of allene-enes is reported. The highly chemoselective intermolecular radical addition reaction of the alkene and subsequent, exclusive exo-radical addition to the allene was realized with perfluoroalkyl radicals. A subsequent TBAF-promoted dehydroiodination of the cyclization products forms cyclopentanes and regenerates an allene moiety (TBAF=tetra-n-butylammonium fluoride).
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Affiliation(s)
- Rong Zeng
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou, PR China
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9
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Kiefer G, Ruiz J, Solari E, Hilt G, Severin K. Ruthenium-Catalyzed Sequential Enyne Cross-Metathesis/ATRA Reactions. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101263] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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10
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Kato H, Ishigame T, Oshima N, Hoshiya N, Shimawaki K, Arisawa M, Shuto S. One-Pot Ring-Closing Metathesis (RCM)/Oxidation by an Assisted Tandem Ruthenium Catalysis for the Synthesis of 2-Quinolones. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100303] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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11
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Radicals in transition metal catalyzed reactions? transition metal catalyzed radical reactions? - a fruitful interplay anyway: part 2. Radical catalysis by group 8 and 9 elements. Top Curr Chem (Cham) 2011; 320:191-322. [PMID: 22143610 DOI: 10.1007/128_2011_285] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This review summarizes the current status of transition metal catalyzed reactions involving radical intermediates in organic chemistry. This part focuses on radical-based methods catalyzed by group 8 and group 9 metal complexes. Reductive and redox-neutral coupling methods catalyzed by low-valent metal complexes as well as catalytic oxidative C-C bond formations are reviewed.
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12
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Stevens AC, Pagenkopf BL. Diels−Alder Chemistry of Siloles and Their Transformation into Cyclohex-2-ene-1,4-cis-diols. Org Lett 2010; 12:3658-61. [DOI: 10.1021/ol101453e] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrew C. Stevens
- The University of Western Ontario, Department of Chemistry, London, Ontario N6A 5B7, Canada
| | - Brian L. Pagenkopf
- The University of Western Ontario, Department of Chemistry, London, Ontario N6A 5B7, Canada
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13
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Sashuk V, Peeck L, Plenio H. [(NHC)(NHCewg)RuCl2(CHPh)] Complexes with Modified NHCewg Ligands for Efficient Ring-Closing Metathesis Leading to Tetrasubstituted Olefins. Chemistry 2010; 16:3983-93. [DOI: 10.1002/chem.200903275] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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15
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Taniguchi T, Ishibashi H. Iron-Mediated Radical Nitro-Cyclization Reaction of 1,6-Dienes. Org Lett 2009; 12:124-6. [DOI: 10.1021/ol902510p] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tsuyoshi Taniguchi
- School of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Hiroyuki Ishibashi
- School of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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16
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Taniguchi T, Goto N, Nishibata A, Ishibashi H. Iron-Catalyzed Redox Radical Cyclizations of 1,6-Dienes and Enynes. Org Lett 2009; 12:112-5. [DOI: 10.1021/ol902562j] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tsuyoshi Taniguchi
- School of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Naoya Goto
- School of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Asami Nishibata
- School of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Hiroyuki Ishibashi
- School of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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17
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Alcaide B, Almendros P, Luna A. Grubbs' ruthenium-carbenes beyond the metathesis reaction: less conventional non-metathetic utility. Chem Rev 2009; 109:3817-58. [PMID: 19572654 DOI: 10.1021/cr9001512] [Citation(s) in RCA: 285] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Benito Alcaide
- Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain.
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18
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Monsaert S, De Canck E, Drozdzak R, Van Der Voort P, Verpoort F, Martins JC, Hendrickx PMS. Indenylidene Complexes of Ruthenium Bearing NHC Ligands - Structure Elucidation and Performance as Catalysts for Olefin Metathesis. European J Org Chem 2009. [DOI: 10.1002/ejoc.200800973] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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19
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Neisius NM, Plietker B. Diastereoselective Ru-catalyzed cross-metathesis-dihydroxylation sequence. an efficient approach toward enantiomerically enriched syn-diols. J Org Chem 2008; 73:3218-27. [PMID: 18358049 DOI: 10.1021/jo800145x] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Sequential catalysis has evolved as a powerful concept within the past years and allows the more efficient use of catalytically active expensive transition metals in organic synthesis. In this paper we present the stereoselective cross-metathesis-dihydroxylation of various olefins with chiral auxiliary substituted acrylamides. The chiral information (i.e., the auxiliary) introduced in the metathesis reactions allows for a stereoselective subsequent RuO4-catalyzed dihydroxylation. The sequence is concluded by an unusual kinetic resolution of the diastereomeric diols obtained in the oxidation reaction. As a consequence a variety of structurally diverse enantiomerically enriched diols are obtained. To the best of our knowledge the results summarized in this paper represent the first highly efficient diastereoselective RuO4-catalyzed oxidation.
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Affiliation(s)
- N Matthias Neisius
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
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20
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Thommes K, Içli B, Scopelliti R, Severin K. Atom-Transfer Radical Addition (ATRA) and Cyclization (ATRC) Reactions Catalyzed by a Mixture of [RuCl2Cp*(PPh3)] and Magnesium. Chemistry 2007; 13:6899-907. [PMID: 17546709 DOI: 10.1002/chem.200700442] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A new catalytic procedure for atom-transfer radical addition (ATRA) and cyclization (ATRC) reactions is described. The combination of the ruthenium(III) complex [RuCl(2)Cp*(PPh3)] (Cp*: pentamethylcyclopentadienyl) with magnesium allows these reactions to be performed under mild conditions with high efficiency. In most cases, the catalyst concentrations required are significantly lower than those used in previously reported procedures. It is suggested that magnesium acts as a reducing agent that generates and regenerates the catalytically active ruthenium(II) species. The precatalyst [RuCl(2)Cp*(PPh3)] has been analyzed by X-ray crystallography.
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Affiliation(s)
- Katrin Thommes
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
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21
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Herndon JW. The chemistry of the carbon–transition metal double and triple bond: Annual survey covering the year 2004. Coord Chem Rev 2006. [DOI: 10.1016/j.ccr.2005.10.020] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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22
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Schmidt B. Olefin metathesis and isomerization: From undesired side reactions to useful synthetic methodology. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.molcata.2006.03.026] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Ruthenium-catalyzed tandem ring closing metathesis (RCM) – atom transfer radical cyclization (ATRC) sequences. J Organomet Chem 2005. [DOI: 10.1016/j.jorganchem.2005.06.042] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Seigal BA, Fajardo C, Snapper ML. Tandem Catalysis: Generating Multiple Contiguous Carbon−Carbon Bonds through a Ruthenium-Catalyzed Ring-Closing Metathesis/Kharasch Addition. J Am Chem Soc 2005; 127:16329-32. [PMID: 16287328 DOI: 10.1021/ja055806j] [Citation(s) in RCA: 108] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Tandem catalysis can offer unique and powerful strategies for converting simple starting materials into more complex products in a single reaction vessel while generating less waste and minimizing handling. In this regard, Grubbs' ruthenium alkylidene (Cy3P)2Cl2Ru=CHPh is shown to catalyze two mechanistically distinct transformations to offer a unique protocol that effects multiple bond changes in a single operation. A tandem ruthenium-catalyzed olefin ring-closing metathesis (RCM)/Kharasch addition allows for the facile preparation of bicyclic [3.3.0], [4.3.0], and [5.3.0] ring systems in one step from the appropriately functionalized acyclic precursors. For substrates where the intramolecular Kharasch addition fails, an intermolecular Kharasch addition is possible. By combining the intra- and intermolecular Kharasch additions with RCM, three new contiguous carbon-carbon bonds with multiple stereocenters can be generated by the ruthenium catalyst in a controlled fashion in one operation through two mechanistically distinct pathways.
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Affiliation(s)
- Benjamin A Seigal
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA
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25
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Conrad JC, Parnas HH, Snelgrove JL, Fogg DE. Highly Efficient Ru−Pseudohalide Catalysts for Olefin Metathesis. J Am Chem Soc 2005; 127:11882-3. [PMID: 16117494 DOI: 10.1021/ja042736s] [Citation(s) in RCA: 130] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ruthenium alkylidene complexes containing one aryloxide "pseudohalide" ligand catalyze ring-closing metathesis of diene and ene-yne substrates with exceptionally high efficiency. Chromatographic removal of Ru residues is unexpectedly facile, offering a convenient means of isolating pure organic products in high yields.
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Affiliation(s)
- Jay C Conrad
- Department of Chemistry, University of Ottawa, Ottawa ON, Canada K1N 6N5
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