1
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Shen YB, Zhao JQ, Ge ZZ, Wang ZH, You Y, Zhou MQ, Yuan WC. HFIP-promoted intramolecular dearomative annulation of pyridylacetate derivatives to access functionalized 3,4-dihydroquinolizin-2-ones. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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2
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Ru GX, Zhang TT, Zhang M, Jiang XL, Wan ZK, Zhu XH, Shen WB, Gao GQ. Recent progress towards the transition-metal-catalyzed Nazarov cyclization of alkynes via metal carbenes. Org Biomol Chem 2021; 19:5274-5283. [PMID: 34060570 DOI: 10.1039/d1ob00744k] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In recent years, transition-metal-catalyzed tandem cyclization reactions of alkynes, especially those involving a metal carbene intermediate, have received worthwhile interest, as this type of reaction does not require the use of risky and potentially explosive diazo compounds as starting materials for carbene generation. A significant and general strategy for the stereospecific synthesis of 5-membered cycles is Nazarov cyclization based on the 4π-conrotatory electrocyclization of a conjugated pentadienyl cation to afford a cyclopentenyl cation. In this review, we introduce an overview of recent advances in the transition-metal-catalyzed Nazarov cyclization of alkynes via a metal carbene intermediate, and categorize these reactions according to the structure of the metal carbene. Our aim is to accelerate advancements in this enchanting area of research.
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Affiliation(s)
- Guang-Xin Ru
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
| | - Ting-Ting Zhang
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
| | - Meng Zhang
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
| | - Xiao-Lei Jiang
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
| | - Zheng-Kai Wan
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
| | - Xiu-Hong Zhu
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
| | - Wen-Bo Shen
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
| | - Guang-Qin Gao
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
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3
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Maiti S, Leonardi M, Cores Á, Tenti G, Ramos MT, Villacampa M, Menéndez JC. Synthesis of 1,4-Diazepanes and Benzo[ b][1,4]diazepines by a Domino Process Involving the In Situ Generation of an Aza-Nazarov Reagent. J Org Chem 2020; 85:11924-11933. [DOI: 10.1021/acs.joc.0c01774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Swarupananda Maiti
- Unidad de Quı́mica Orgánica y Farmacéutica, Departamento de Quı́mica en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - Marco Leonardi
- Unidad de Quı́mica Orgánica y Farmacéutica, Departamento de Quı́mica en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - Ángel Cores
- Unidad de Quı́mica Orgánica y Farmacéutica, Departamento de Quı́mica en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - Giammarco Tenti
- Unidad de Quı́mica Orgánica y Farmacéutica, Departamento de Quı́mica en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - M. Teresa Ramos
- Unidad de Quı́mica Orgánica y Farmacéutica, Departamento de Quı́mica en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - Mercedes Villacampa
- Unidad de Quı́mica Orgánica y Farmacéutica, Departamento de Quı́mica en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - J. Carlos Menéndez
- Unidad de Quı́mica Orgánica y Farmacéutica, Departamento de Quı́mica en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
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4
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Abstract
An important strategy for the efficient generation of diversity in molecular structures is the utilization of common starting materials in chemodivergent transformations. The most studied solutions for switching the chemoselectivity rely on the catalyst, ligand, additive, solvent, temperature, time, pressure, pH and even small modifications in the substrate. In this review article several processes have been selected such as inter- and intramolecular cyclizations, including carba-, oxa-, thia- and oxazacyclizations promoted mainly by Brønsted or Lewis acids, transition metals and organocatalysts, as well as radical reactions. Catalyst-controlled intra- and intermolecular cyclizations are mainly described to give five- and six-membered rings. Cycloaddition reactions involving (2+2), (3+2), (3+3), (4+1), (4+2), (5+2), (6+2) and (7+2) processes are useful reactions for the synthesis of cyclic systems using organocatalysts, metal catalysts and Lewis acid-controlled processes. Addition reactions mainly of carba- and heteronucleophiles to unsaturated conjugated substrates can give different adducts via metal catalyst-, Lewis acid- and solvent-dependent processes. Carbonylation reactions of amines and phenols are carried out via ligand-controlled transition metal-catalyzed multicomponent processes. Ring-opening reactions starting mainly from cyclopropanols, cyclopropenols and epoxides or aziridines are applied to the synthesis of acyclic versus cyclic products under catalyst-control mainly by Lewis acids. Chemodivergent reduction reactions are performed using dissolving metals, sodium borohydride or hydrogen transfer conditions under solvent control. Oxidation reactions include molecular oxygen under solvent control or using different dioxiranes, as well as chemodivergent palladium catalyzed cross-coupling reactions using boronic acids are applied to aromatic and allenic compounds. Other chemodivergent reactions such as alkylations and allylations under transition metal catalysis, dimerization of acetylenes, bromination of benzylic substrates, and A3-couplings are performed via catalyst- or reaction condition-dependent processes.
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Affiliation(s)
- Irina P Beletskaya
- Chemistry Department, M. V. Lomonosov Moscow University, Leminskie Gory 1, 119992 Moscow, Russia
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5
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Liu W, Niu S, Zhao Z, Yang S, Liu J, Li Y, Fang X. Divergent Synthesis of Bicyclo[3.2.1]octenes and Cyclohexenes via Catalytic Annulations of Nazarov Reagent and Vinyl 1,2-Diketones. Org Lett 2020; 22:7572-7576. [PMID: 32909760 DOI: 10.1021/acs.orglett.0c02763] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Bicyclo[3.2.1]octanes and related structures are unique units that widely exist in natural products, but the rapid and stereoselective construction of this skeleton is a challenging issue. We report the stereodivergent synthesis of bicyclo[3.2.1]octenes using Nazarov reagents and alkenyl 1,2-diketones with Brønsted base catalysis under mild conditions. Both stereoisomers of the bridged products can be obtained by tuning the reaction conditions, and cyclohexene product can also be selectively formed.
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Affiliation(s)
- Wenjun Liu
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Shengtong Niu
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Zhifei Zhao
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Shuang Yang
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Jinggong Liu
- Orthopedics Department, Guangdong Provincial Hospital of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, No. 111 Dade Road, Guangzhou 510120, China
| | - Yongjin Li
- Orthopedics Department, Guangdong Provincial Hospital of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, No. 111 Dade Road, Guangzhou 510120, China
| | - Xinqiang Fang
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
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6
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Wu YK, Rawal VH. Rapid construction of tetrahydropyridine scaffolds via formal imino Diels-Alder reactions of Schiff bases and Nazarov reagents. Org Biomol Chem 2019; 17:8827-8831. [PMID: 31553010 DOI: 10.1039/c9ob01880h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Described is a one-flask, two-step method for the synthesis of highly functionalized piperidines. The process involves formal [4 + 2] cycloadditions of Schiff bases and Nazarov reagents, followed by facile elaborations of the initial cycloadducts. Notably, these aza-annulations are facilitated by protic solvents and proceed smoothly under ambient conditions, without other additives. The synthetic utility of this annulation protocol is further showcased through a concise, convergent synthesis of (±)-tetrabenazine.
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Affiliation(s)
- Yen-Ku Wu
- Department of Applied Chemistry, National Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan.
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7
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Chang M, Huang Y. Nazarov Reagent: New Role for the [4+2] Domino Benzannulation Reaction to Construct Polysubstituted Benzenes. Chem Asian J 2019; 14:2588-2593. [DOI: 10.1002/asia.201900590] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 06/02/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Meijia Chang
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University Tianjin 300071 P.R. China
| | - You Huang
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University Tianjin 300071 P.R. China
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8
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Koenig JJ, Arndt T, Gildemeister N, Neudörfl JM, Breugst M. Iodine-Catalyzed Nazarov Cyclizations. J Org Chem 2019; 84:7587-7605. [DOI: 10.1021/acs.joc.9b01083] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Jonas J. Koenig
- Department of Chemistry, University of Cologne, Greinstraße 4, 50939 Köln, Germany
| | - Thiemo Arndt
- Department of Chemistry, University of Cologne, Greinstraße 4, 50939 Köln, Germany
| | - Nora Gildemeister
- Department of Chemistry, University of Cologne, Greinstraße 4, 50939 Köln, Germany
| | - Jörg-M. Neudörfl
- Department of Chemistry, University of Cologne, Greinstraße 4, 50939 Köln, Germany
| | - Martin Breugst
- Department of Chemistry, University of Cologne, Greinstraße 4, 50939 Köln, Germany
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9
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A Straightforward Synthesis of Functionalized cis-Perhydroisoquinolin-1-ones. Molecules 2019; 24:molecules24030557. [PMID: 30717460 PMCID: PMC6385050 DOI: 10.3390/molecules24030557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 01/29/2019] [Accepted: 01/30/2019] [Indexed: 11/17/2022] Open
Abstract
Base-catalyzed annulation reactions of 5,6-dihydro-2(1H)-pyridones with Nazarov-type reagents are reported. The effect of the solvent polarity and the concentration of the reagents is studied. The process involves two successive Michael additions and stereoselectively provides functionalized cis-perhydroisoquinolin-1-ones.
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10
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Yao J, Yin L, Shen Y, Lu T, Hayashi T, Dou X. Catalytic Asymmetric Conjugate Arylation of γ,δ-Unsaturated β-Dicarbonyl Compounds. Org Lett 2018; 20:6882-6885. [DOI: 10.1021/acs.orglett.8b03021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jian Yao
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Long Yin
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Yue Shen
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Tao Lu
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Tamio Hayashi
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Xiaowei Dou
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
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11
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Kreibich M, Petrović D, Brückner R. Mechanistic Studies of the Deslongchamps Annulation. J Org Chem 2018; 83:1116-1133. [PMID: 29131961 DOI: 10.1021/acs.joc.7b02341] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The Cs2CO3-mediated annulations ("Deslongchamps annulations") of three spirocyclic benzoquinone monoketals 5b-d with an ester or acyl substituent at C-2 to two tert-butyl esters of γ,δ-unsaturated β-ketocarboxyl acids ("Nazarov reagents"; 2a,b) were monitored 1H NMR spectroscopically. This revealed that a primary product, by all likelihood the Michael adduct, forms fast and prior to the appearance of the Deslongchamps adduct. These primary products form reversibly. This was proved by two crossover and four scavenging experiments. Therein, components already incorporated in one of the mentioned primary products ended up in Deslongchamps adducts different from the one, which would have resulted if the respective primary product had reacted alone. However, these experiments leave open whether our primary products are intermediates en route to Deslongchamps products or whether they represent dead ends.
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Affiliation(s)
- Michael Kreibich
- Institut für Organische Chemie, Albert-Ludwigs-Universität , Albertstraße 21, D-79104 Freiburg im Breisgau, Germany
| | - Denis Petrović
- Institut für Organische Chemie, Albert-Ludwigs-Universität , Albertstraße 21, D-79104 Freiburg im Breisgau, Germany.,Noramco GmbH , Badische Bahnhofstrasse 16, CH-8212 Neuhausen, Switzerland
| | - Reinhard Brückner
- Institut für Organische Chemie, Albert-Ludwigs-Universität , Albertstraße 21, D-79104 Freiburg im Breisgau, Germany
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12
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Yue DF, Zhao JQ, Chen XZ, Zhou Y, Zhang XM, Xu XY, Yuan WC. Multiple Hydrogen-Bonding Bifunctional Thiourea-Catalyzed Asymmetric Dearomative [4 + 2] Annulation of 3-Nitroindoles: Highly Enantioselective Access to Hydrocarbazole Skeletons. Org Lett 2017; 19:4508-4511. [PMID: 28809570 DOI: 10.1021/acs.orglett.7b02068] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A method for the enantioselective construction of hydrocarbazole skeletons through dearomative [4 + 2] annulation of 3-nitroindoles with Nazarov reagents is reported. The reactions use multiple hydrogen-bonding bifunctional thiourea as catalyst and are highly diastereo- and enantioselective (up to >20:1 dr and >99% ee). The protocol was demonstrated by preparative-scale experiment and the versatile conversion of the products. The multiple hydrogen-bonding in the catalyst plays a pivotal role in the reactivity and stereoselectivity.
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Affiliation(s)
- Deng-Feng Yue
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Jian-Qiang Zhao
- Institute for Advanced Study, Chengdu University , Chengdu 610106, China
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13
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Estarellas C, Arioli F, Pérez M, Are C, Hevia D, Molins E, Luque FJ, Bosch J, Amat M. Origin of the Base-Dependent Facial Selectivity in Annulation Reactions of Nazarov-Type Reagents with Unsaturated Indolo[2,3- a]quinolizidine Lactams. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700610] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Carolina Estarellas
- Department of Nutrition; Food Sciences and Gastronomy; Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB); University of Barcelona; 08921 Santa Coloma de Gramanet Spain
| | - Federica Arioli
- Laboratory of Organic Chemistry; Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB); University of Barcelona; 08028 Barcelona Spain
| | - Maria Pérez
- Department of Nutrition; Food Sciences and Gastronomy; Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB); University of Barcelona; 08921 Santa Coloma de Gramanet Spain
| | - Celeste Are
- Laboratory of Organic Chemistry; Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB); University of Barcelona; 08028 Barcelona Spain
| | - David Hevia
- Laboratory of Organic Chemistry; Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB); University of Barcelona; 08028 Barcelona Spain
| | - Elies Molins
- Institut de Ciència de Materials (CSIC); Campus UAB 08193 Cerdanyola Spain
| | - F. Javier Luque
- Department of Nutrition; Food Sciences and Gastronomy; Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB); University of Barcelona; 08921 Santa Coloma de Gramanet Spain
| | - Joan Bosch
- Laboratory of Organic Chemistry; Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB); University of Barcelona; 08028 Barcelona Spain
| | - Mercedes Amat
- Laboratory of Organic Chemistry; Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB); University of Barcelona; 08028 Barcelona Spain
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14
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Martin MC, Sandridge MJ, Williams CW, Francis ZA, France S. Dehydrative Nazarov-type electrocyclizations of alkenyl (hetero)aryl carbinols via calcium catalysis: Access to cyclopenta[b]thiophenes and indene derivatives. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.03.041] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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15
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Huang C, Han X, Shao Z, Gao K, Liu M, Wang Y, Wu J, Hou H, Mi L. Solvent-Induced Assembly of Sliver Coordination Polymers (CPs) as Cooperative Catalysts for Synthesizing of Cyclopentenone[b]pyrroles Frameworks. Inorg Chem 2017; 56:4874-4884. [DOI: 10.1021/acs.inorgchem.6b03091] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chao Huang
- Center for Advanced
Materials Research, Zhongyuan University of Technology, Zhengzhou 450007, People’s Republic of China
| | - Xiao Han
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - ZhiChao Shao
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Kuan Gao
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Mengjia Liu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Yanjie Wang
- Center for Advanced
Materials Research, Zhongyuan University of Technology, Zhengzhou 450007, People’s Republic of China
| | - Jie Wu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Hongwei Hou
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Liwei Mi
- Center for Advanced
Materials Research, Zhongyuan University of Technology, Zhengzhou 450007, People’s Republic of China
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17
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Berkes B, Ozsváth K, Molnár L, Gáti T, Holczbauer T, Kardos G, Soós T. Expedient and Diastereodivergent Assembly of Terpenoid Decalin Subunits having Quaternary Stereocenters through Organocatalytic Robinson Annulation of Nazarov Reagent. Chemistry 2016; 22:18101-18106. [DOI: 10.1002/chem.201604541] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Indexed: 12/18/2022]
Affiliation(s)
- Barbara Berkes
- Institute of Organic Chemistry; Hungarian Academy of Sciences; 1519 Budapest, P.O. Box 286 Hungary
| | - Kristóf Ozsváth
- Institute of Organic Chemistry; Hungarian Academy of Sciences; 1519 Budapest, P.O. Box 286 Hungary
| | - Laura Molnár
- Institute of Organic Chemistry; Hungarian Academy of Sciences; 1519 Budapest, P.O. Box 286 Hungary
| | - Tamás Gáti
- Servier Research Institute of Medicinal Chemistry; Záhony Street 7 1031 Budapest Hungary
| | - Tamás Holczbauer
- Institute of Organic Chemistry; Hungarian Academy of Sciences; 1519 Budapest, P.O. Box 286 Hungary
| | - György Kardos
- Institute of Organic Chemistry; Hungarian Academy of Sciences; 1519 Budapest, P.O. Box 286 Hungary
| | - Tibor Soós
- Institute of Organic Chemistry; Hungarian Academy of Sciences; 1519 Budapest, P.O. Box 286 Hungary
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18
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Tang ML, Peng P, Liu ZY, Zhang J, Yu JM, Sun X. Sulfoxide-Based Enantioselective Nazarov Cyclization: Divergent Syntheses of (+)-Isopaucifloral F, (+)-Quadrangularin A, and (+)-Pallidol. Chemistry 2016; 22:14535-9. [DOI: 10.1002/chem.201603664] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Mei-Lin Tang
- Department of Natural Products Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 P.R. China
| | - Peng Peng
- Department of Natural Products Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 P.R. China
| | - Zheng-Yu Liu
- Department of Natural Products Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 P.R. China
| | - Jian Zhang
- Department of Natural Products Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 P.R. China
| | - Jian-Ming Yu
- Department of Natural Products Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 P.R. China
| | - Xun Sun
- Department of Natural Products Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 P.R. China
- Shanghai Key Laboratory of Clinical Geriatric Medicine; Shanghai 201203 P.R. China
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19
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Shu C, Wang YH, Shen CH, Ruan PP, Lu X, Ye LW. Gold-Catalyzed Intermolecular Ynamide Amination-Initiated Aza-Nazarov Cyclization: Access to Functionalized 2-Aminopyrroles. Org Lett 2016; 18:3254-7. [DOI: 10.1021/acs.orglett.6b01503] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Chao Shu
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yong-Heng Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Cang-Hai Shen
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Peng-Peng Ruan
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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20
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Zhang HH, Zhu ZQ, Fan T, Liang J, Shi F. Intermediate-Dependent Unusual [4+3], [3+2] and Cascade Reactions of 3-Indolylmethanols: Controllable Chemodivergent and Stereoselective Synthesis of Diverse Indole Derivatives. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501063] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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21
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22
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Feldmann A, Kehr G, Daniliuc CG, Mück-Lichtenfeld C, Erker G. Functionalization of Intramolecular Frustrated Lewis Pairs by 1,1-Carboboration with Conjugated Enynes. Chemistry 2015; 21:12456-64. [PMID: 26284948 DOI: 10.1002/chem.201502278] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Indexed: 11/11/2022]
Abstract
The vicinal P/B frustrated Lewis pair (FLP) Mes2PCH2CH2B(C6F5)2 undergoes 1,1-carboboration reactions with the Me3Si-substituted enynes to give ring-enlarged functionalized C3-bridged P/B FLPs. These serve as active FLPs in the activation of dihydrogen to give the respective zwitterionic [P]H(+)/[B]H(-) products. One such product shows activity as a metal-free catalyst for the hydrogenation of enamines or a bulky imine. The ring-enlarged FLPs contain dienylborane functionalities that undergo "bora-Nazarov"-type ring-closing rearrangements upon photolysis. A DFT study had shown that the dienylborane cyclization of such systems itself is endothermic, but a subsequent C6F5 migration is very favorable. Furthermore, substituted 2,5-dihydroborole products are derived from cyclization and C6F5 migration from the photolysis reaction. In the case of the six-membered annulation product, a subsequent stereoisomerization reaction takes place and the resultant compound undergoes a P/B FLP 1,2-addition reaction with a terminal alkyne with rearrangement.
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Affiliation(s)
- Andreas Feldmann
- Organisch-Chemisches Institut der Universität Münster, Corrensstr. 40, 48149 Münster (Germany)
| | - Gerald Kehr
- Organisch-Chemisches Institut der Universität Münster, Corrensstr. 40, 48149 Münster (Germany)
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut der Universität Münster, Corrensstr. 40, 48149 Münster (Germany)
| | | | - Gerhard Erker
- Organisch-Chemisches Institut der Universität Münster, Corrensstr. 40, 48149 Münster (Germany).
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23
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Arioli F, Pérez M, Are C, Estarellas C, Luque FJ, Bosch J, Amat M. Stereocontrolled Annulations of Indolo[2,3-a]quinolizidine-Derived Lactams with a Silylated Nazarov Reagent: Access to Allo and Epiallo Yohimbine-Type Derivatives. Chemistry 2015; 21:13382-9. [DOI: 10.1002/chem.201501912] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Indexed: 11/10/2022]
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Ge F, Türkyilmaz F, Daniliuc CG, Siedow M, Eckert H, Kehr G, Erker G. A 1,1-Carboboration Route to Bora-Nazarov Systems. Chem Asian J 2015. [PMID: 26223464 DOI: 10.1002/asia.201500636] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Hydroboration of the conjugated enynes 1 a and 1 b with Piers' borane [HB(C6F5)2] gave the respective dienylboranes trans-2 c and trans-2 d. Their photolysis resulted in the formation of the dihydroborole products 3 c and 3 d. Both were converted to their pyridine adducts 5 c and 5 d, respectively. Compounds 3 c and 5 c,d were characterized by X-ray diffraction. The reaction of the bis(enynyl)boranes 6 a and 6 b with B(C6F5)3 resulted in the formation of the dihydroboroles 7 a and 7 b, respectively. This reaction is thought to proceed by 1,1-carboboration of one of the enynyl substituents at boron to generate the dienylborane intermediates 8 a/8 b, followed by thermally induced bora-Nazarov ring-closure and subsequent stabilizing 1,2-pentafluorophenyl group migration from boron to carbon. Compound 7 a was characterized by X-ray diffraction and solid-state (11)B NMR spectroscopy.
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Affiliation(s)
- Fang Ge
- Organisch-Chemisches Institut, Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Fatma Türkyilmaz
- Organisch-Chemisches Institut, Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut, Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Melanie Siedow
- Institut für Physikalische Chemie, Universität Münster, Corrensstraße 30, 48149, Münster, Germany
| | - Hellmut Eckert
- Institut für Physikalische Chemie, Universität Münster, Corrensstraße 30, 48149, Münster, Germany
| | - Gerald Kehr
- Organisch-Chemisches Institut, Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Gerhard Erker
- Organisch-Chemisches Institut, Universität Münster, Corrensstrasse 40, 48149, Münster, Germany.
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25
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Affiliation(s)
- Takahiko Akiyama
- Department
of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo 171-8588, Japan
| | - Keiji Mori
- Department
of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo 171-8588, Japan
- Department
of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho Koganei, Tokyo 184-8588, Japan
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Möbus J, Kehr G, Daniliuc CG, Mück-Lichtenfeld C, Erker G. Observation of a Thermally Induced Bora-Nazarov Cyclization at a Phosphole Framework. Angew Chem Int Ed Engl 2015; 54:12366-9. [DOI: 10.1002/anie.201502850] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Indexed: 11/09/2022]
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27
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Möbus J, Kehr G, Daniliuc CG, Mück-Lichtenfeld C, Erker G. Observation of a Thermally Induced Bora-Nazarov Cyclization at a Phosphole Framework. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502850] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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28
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Christmann M, Hu J, Kitamura M, Stoltz B. Tetrahedron reports on organic chemistry. Tetrahedron 2015. [DOI: 10.1016/s0040-4020(15)00744-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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29
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Peña J, Silveira-Dorta G, Moro RF, Garrido NM, Marcos IS, Sanz F, Díez D. Enantioselective synthesis of cis-decalins using organocatalysis and sulfonyl Nazarov reagents. Molecules 2015; 20:6409-18. [PMID: 25867826 PMCID: PMC6272541 DOI: 10.3390/molecules20046409] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 04/02/2015] [Accepted: 04/03/2015] [Indexed: 11/16/2022] Open
Abstract
The first organocatalytic synthesis of cis-decalins using sulfonyl Nazarov reagents is reported. The Jørgensen's catalyst directs this highly enantioselective synthesis using different cyclohexenal derivatives.
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Affiliation(s)
- Javier Peña
- Departamento de Química Orgánica, Universidad de Salamanca, Plaza de los Caídos 1-5, 37008 Salamanca, Spain.
| | - Gastón Silveira-Dorta
- Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO-AG), Universidad de La Laguna, Astrofísico Francisco Sánchez 2, 38206 La Laguna, Spain.
| | - Rosalina F Moro
- Departamento de Química Orgánica, Universidad de Salamanca, Plaza de los Caídos 1-5, 37008 Salamanca, Spain.
| | - Narciso M Garrido
- Departamento de Química Orgánica, Universidad de Salamanca, Plaza de los Caídos 1-5, 37008 Salamanca, Spain.
| | - Isidro S Marcos
- Departamento de Química Orgánica, Universidad de Salamanca, Plaza de los Caídos 1-5, 37008 Salamanca, Spain.
| | - Francisca Sanz
- Servicio de Difracción de Rayos X, Plataforma Nucleus, Universidad de Salamanca, Plaza de los Caídos 1-5, 37008 Salamanca, Spain.
| | - David Díez
- Departamento de Química Orgánica, Universidad de Salamanca, Plaza de los Caídos 1-5, 37008 Salamanca, Spain.
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30
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Jang YJ, Chen YS, Lee CJ, Chen CH, Reddy GM, Ko CT, Lin W. Asymmetric Organocatalytic Synthesis of Highly Substituted Cyclohexenols by Domino Double-Michael Reactions of 1-Hydroxy-1,4-dien-3-ones and 2-Alkylidenemalononitriles. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403677] [Citation(s) in RCA: 11] [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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31
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Affiliation(s)
- Keith P. Reber
- Department of Chemistry and
Biochemistry, University of California, San Diego, 9500 Gilman
Drive, La Jolla, California 92093-0358, United States
| | - Jing Xu
- Department of Chemistry and
Biochemistry, University of California, San Diego, 9500 Gilman
Drive, La Jolla, California 92093-0358, United States
| | - Carlos A. Guerrero
- Department of Chemistry and
Biochemistry, University of California, San Diego, 9500 Gilman
Drive, La Jolla, California 92093-0358, United States
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Adler Yañez RA, Kehr G, Daniliuc CG, Schirmer B, Erker G. Formation of a dihydroborole by catalytic isomerization of a divinylborane. Dalton Trans 2014; 43:10794-800. [PMID: 24882640 DOI: 10.1039/c4dt01423e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diphenylamino(divinyl)borane (1a) adds two molar equivalents of Piers' borane [HB(C6F5)2] to give the expected double hydroboration product. In contrast diisopropylamino(divinyl)borane (1b) reacts cleanly already with one molar equivalent of HB(C6F5)2 to give the α-borylated tetrahydroborole derivative 10 in good yield. Subsequent treatment of 10 with benzaldehyde proceeded by retro-hydroboration to give the hydroboration product of the aldehyde plus the dihydroborole 3b. We were able to achieve the divinylborane to dihydroborole isomerization (1b to 3b) catalytically: treatment of diisopropylamino(divinyl)borane (1b) with 15 mol% of Piers' borane at elevated temperature gave (diisopropylamino)dihydroborole 3b in good yield.
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Affiliation(s)
- Raúl A Adler Yañez
- Organisch-Chemisches Institut, Universitat Münster, Corrensstraße 40, 48149 Münster, Germany.
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33
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Peña J, Moro RF, Marcos IS, Sanz F, Díez D. Highly functionalised cyclohexa-1,3-dienes by sulfonyl Nazarov reagents. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.04.076] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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34
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2013. [DOI: 10.1016/s0040-4020(13)01252-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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