1
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Wu Y, Frank N, Song Q, Liu M, Anderson EA, Bi X. Silver catalysis in organic synthesis: A computational view. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2023. [DOI: 10.1016/bs.adomc.2022.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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2
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Chen L, Li YD, Lv Y, Lu ZH, Yan SJ. Cu-Catalyzed decarboxylative annulation of N-substituted glycines with 3-formylchromones: synthesis of functionalized chromeno[2,3- b]pyrrol-4(1 H)-ones. Chem Commun (Camb) 2022; 58:10194-10197. [PMID: 36000356 DOI: 10.1039/d2cc03816a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel protocol was developed for preparing functionalized chromeno[2,3-b]pyrrol-4(1H)-ones 3 (CMPOs) from 3-formylchromones with N-substituted glycine derivatives. The method entailed decarboxylative annulation of the acyl group of 3-formylchromones by simply heating a mixture of substrates 1-2 and toluene oxidized by 2-di-tert-butyl peroxide (DTBP) and catalyzed by CuBr. As a result, a series of CMPOs 3 were produced via a cascade reaction. This protocol can be used to synthesize functionalized CMPOs via combinatorial and parallel syntheses in a one-pot reaction rather than a tedious multi-step reaction.
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Affiliation(s)
- Li Chen
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| | - Yuan-Da Li
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| | - Ying Lv
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| | - Zi-Han Lu
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| | - Sheng-Jiao Yan
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
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3
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Patel RK, Chauhan A, Jha P, Kant R, Kumar R. Catalytic Friedel-Crafts Alkylative Desymmetrization of Cyclohexa-2,5-dienones: Access to Linear and Bridged Polycyclic Pyrroles and 3-Arylpyrroles. Org Lett 2022; 24:5422-5427. [PMID: 35852460 DOI: 10.1021/acs.orglett.2c02135] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A catalytic [3 + 2]-cycloaddition/Friedel-Crafts alkylative desymmetrization strategy has been developed for the stereoselective construction of linear and bridged polycyclic pyrroles from alkynylcyclohexa-2,5-dienones. This strategy was further explored for the synthesis of 3-arylpyrroles under Brønsted acid catalysis. Reaction is highly chemo-, regio-, and stereoselective and is compatible with wide range of functionalized cyclohexa-2,5-dienones/pyrroles (>51 examples, ≤98% yields). Gram-scale synthesis and synthetic utility of the products have also been demonstrated to showcase the robustness of present method.
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Affiliation(s)
- Raj Kumar Patel
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow 226031, UP, India
| | - Anil Chauhan
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow 226031, UP, India
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad UP-201002, India
| | - Priyankar Jha
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow 226031, UP, India
| | - Ruchir Kant
- Molecular and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Ravindra Kumar
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow 226031, UP, India
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad UP-201002, India
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4
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Chen Y, Ni S, Li MD, Dang L. Theoretical Investigate of the α-Substitution Effect on γ-C(sp3)−H Arylation of Amines: Structure-Reactivity Relationship (SRR) Studies. Org Chem Front 2022. [DOI: 10.1039/d2qo00158f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Structure-reactivity relationship (SRR) studies to understand the α-substitution effect toward Pd-catalyzed γ-C(sp3)−H arylation enabled by catalytic transient directing groups have carefully been performed by DFT calculations. Selected transient directing groups...
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5
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Elkoush T, Reich ND, Campbell MG. Dinuclear Silver Complexes in Catalysis. Angew Chem Int Ed Engl 2021; 60:22614-22622. [PMID: 34143934 DOI: 10.1002/anie.202106937] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Indexed: 01/08/2023]
Abstract
Over the past two decades, there has been a substantial increase in the number of synthetically useful transformations catalyzed by silver. Across the range of silver-catalyzed reactions that have been reported, dinuclear species often emerge as a common feature, either as the (pre-)catalysts themselves or as intermediates during catalysis. This Minireview explores the role of dinuclear silver complexes in homogeneous catalysis, which we hope will aid in the development of improved design principles for silver catalysts.
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Affiliation(s)
- Tasneem Elkoush
- Department of Chemistry, Barnard College, 3009 Broadway, New York, NY, 10027, USA
| | - Natasha D Reich
- Department of Chemistry, Barnard College, 3009 Broadway, New York, NY, 10027, USA
| | - Michael G Campbell
- Department of Chemistry, Barnard College, 3009 Broadway, New York, NY, 10027, USA
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6
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Affiliation(s)
- Tasneem Elkoush
- Department of Chemistry Barnard College 3009 Broadway New York NY 10027 USA
| | - Natasha D. Reich
- Department of Chemistry Barnard College 3009 Broadway New York NY 10027 USA
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7
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Wang DL, Jiang NQ, Cai ZJ, Ji SJ. Amidation-Ketonization-Selenation of Terminal Alkynes Using TEMPO and Elemental Selenium. J Org Chem 2021; 86:9898-9904. [PMID: 34165301 DOI: 10.1021/acs.joc.1c01066] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, we present a novel silver- or copper-mediated direct amidation-ketonization-selenation of terminal alkynes for the synthesis of α-oxo-selenoamides. The reaction utilized easily accessible elemental selenium as the source of selenium. In addition, the 18O labeling experiment revealed that TEMPO is the oxygen source of the carbonyl group. The reaction takes advantage of an unsaturated C≡C bond to construct new C═O, C═Se, and C-N bonds in one step.
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Affiliation(s)
- Dian-Liang Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Nan-Quan Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Zhong-Jian Cai
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
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8
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Fu L, Liu Y, Wan JP. Pd-Catalyzed Triple-Fold C(sp 2)-H Activation with Enaminones and Alkenes for Pyrrole Synthesis via Hydrogen Evolution. Org Lett 2021; 23:4363-4367. [PMID: 34013729 DOI: 10.1021/acs.orglett.1c01301] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The synthesis of NH-free pyrroles via Pd-catalyzed annulation of enaminones and alkenes is reported. With the catalysis of Pd(II), the activation of triple C(sp2)-H bonds, including one internal C(sp2)-H bond in enaminone, has been activated to provide various pyrroles. The interesting evolution of hydrogen gas from the reactions has been observed by a hydrogen detector.
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Affiliation(s)
- Leiqing Fu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.,College of Chemistry and Bio-Engineering, Yichun University, Yichun, Jiangxi 336000, P. R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
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9
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Ouyang Y, Wu K, Zhou W, Cai Q. Copper-catalyzed tandem annulation of 2-alkynoyl-2′-iodo-1,1′-biphenyls with isocyanoacetates: a rapid access to pyrrole-fused tetracyclic skeletons. Org Chem Front 2021. [DOI: 10.1039/d0qo01657h] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A copper-catalyzed [3 + 2] cycloaddition/C–C coupling tandem process was developed based on the concept of trapping organocuprate intermediates.
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Affiliation(s)
- Yifan Ouyang
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education
- College of Pharmacy
- Jinan University
- Guangzhou
- China
| | - Kaifu Wu
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education
- College of Pharmacy
- Jinan University
- Guangzhou
- China
| | - Wei Zhou
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education
- College of Pharmacy
- Jinan University
- Guangzhou
- China
| | - Qian Cai
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education
- College of Pharmacy
- Jinan University
- Guangzhou
- China
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10
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Liu Z, Cao S, Wu J, Zanoni G, Sivaguru P, Bi X. Palladium(II)-Catalyzed Cross-Coupling of Diazo Compounds and Isocyanides to Access Ketenimines. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02867] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhaohong Liu
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Shanshan Cao
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jiayi Wu
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Giuseppe Zanoni
- Department of Chemistry, University of Pavia, Viale Taramelli 12, Pavia 27100, Italy
| | | | - Xihe Bi
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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11
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Neto JSS, Zeni G. Transition Metal‐Catalyzed and Metal‐Free Cyclization Reactions of Alkynes with Nitrogen‐Containing Substrates: Synthesis of Pyrrole Derivatives. ChemCatChem 2020. [DOI: 10.1002/cctc.201902325] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jose S. S. Neto
- Departamento de QuímicaUniversidade Federal de Santa Catarina Florianópolis Santa Catarina 88040-900 Brazil
| | - Gilson Zeni
- Department of Biochemistry and Molecular Biology Laboratório de Síntese Reatividade Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNEUniversidade Federal de Santa Maria Santa Maria Rio Grande do Sul 97105-900 Brazil
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12
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Cao S, Ji Q, Li H, Pang M, Yuan H, Zhang J, Bi X. AgN3-Catalyzed Hydroazidation of Terminal Alkynes and Mechanistic Studies. J Am Chem Soc 2020; 142:7083-7091. [DOI: 10.1021/jacs.0c00836] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Shanshan Cao
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Qinghe Ji
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Huaizhi Li
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Maolin Pang
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Haiyan Yuan
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jingping Zhang
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xihe Bi
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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13
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Wu J, Kaplaneris N, Ni S, Kaltenhäuser F, Ackermann L. Late-stage C(sp 2)-H and C(sp 3)-H glycosylation of C-aryl/alkyl glycopeptides: mechanistic insights and fluorescence labeling. Chem Sci 2020; 11:6521-6526. [PMID: 34094117 PMCID: PMC8152807 DOI: 10.1039/d0sc01260b] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
C(sp3)–H and C(sp2)–H glycosylations of structurally complex amino acids and peptides were accomplished through the assistance of triazole peptide-isosteres. The palladium-catalyzed peptide–saccharide conjugation provided modular access to structurally complex C-alkyl glycoamino acids, glycopeptides and C-aryl glycosides, while enabling the assembly of fluorescent-labeled glycoamino acids. The C–H activation approach represents an expedient and efficient strategy for peptide late-stage diversification in a programmable as well as chemo-, regio-, and diastereo-selective fashion. C–H glycosylations of complex amino acids and peptides were accomplished through the assistance of triazole peptide-isosteres. The palladium-catalyzed glycosylation provided access to complex C-glycosides and fluorescent-labeled glycoamino acids.![]()
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Affiliation(s)
- Jun Wu
- Institut fuer Organische und Biomolekulare Chemie, Georg-August-Universitaet Gottingen Tammannstrasse 2 37077 Goettingen Germany
| | - Nikolaos Kaplaneris
- Institut fuer Organische und Biomolekulare Chemie, Georg-August-Universitaet Gottingen Tammannstrasse 2 37077 Goettingen Germany
| | - Shaofei Ni
- Institut fuer Organische und Biomolekulare Chemie, Georg-August-Universitaet Gottingen Tammannstrasse 2 37077 Goettingen Germany
| | - Felix Kaltenhäuser
- Institut fuer Organische und Biomolekulare Chemie, Georg-August-Universitaet Gottingen Tammannstrasse 2 37077 Goettingen Germany
| | - Lutz Ackermann
- Institut fuer Organische und Biomolekulare Chemie, Georg-August-Universitaet Gottingen Tammannstrasse 2 37077 Goettingen Germany .,German Center for Cardiovascular Research (DZHK) Potsdamer Strasse 58 10785 Berlin Germany
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14
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Cao S, Yuan H, Zhang J. Mechanistic Study on Ag I-Catalyzed Oxidative Cross-Coupling/Cyclization between Terminal Alkynes and β-Enamino Esters under Base Conditions. J Org Chem 2020; 85:4408-4417. [PMID: 32078322 DOI: 10.1021/acs.joc.0c00132] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A combined computational and experimental study was performed to elucidate the mechanism of the AgI-catalyzed oxidative cross-coupling/cyclization of terminal alkynes with β-enamino esters. The results indicated a more favorable AgI/Ag0-catalyzed radical mechanism (than cationic mechanism) which involves three key stages: (i) the initiation of radical species, (ii) the cyclization, and (iii) the formal 1,2-H shift. Meanwhile, the AgI species was found to be the active initiator for the delocalized nitrogen radical species generation, and Ag2CO3 acts as an effective oxidant to initiate the β-enamino ester radical formation. Furthermore, it was shown that the silver acetylide is the key intermediate in the title reaction and that the coordination of solvent dimethyl sulfoxide (DMSO) regulates the electronic properties of the Ag center better as compared with base 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), thereby enhancing the negative charge of the reaction sites and promoting the cyclization process. Finally, the DBU was revealed to play a key role in the final 1,2-H shift process through the formation of [DBU-H]+, acting as a proton shuttle to assist the proton migration process. The theoretical results provide key insights into the AgI/Ag0-catalyzed radical mechanism and guidelines for further development of Ag-catalyzed synthetic methods.
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Affiliation(s)
- Shanshan Cao
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Haiyan Yuan
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jingping Zhang
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
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15
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Sivaguru P, Cao S, Babu KR, Bi X. Silver-Catalyzed Activation of Terminal Alkynes for Synthesizing Nitrogen-Containing Molecules. Acc Chem Res 2020; 53:662-675. [PMID: 32078302 DOI: 10.1021/acs.accounts.9b00623] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Alkynes are one of the most abundant chemicals in organic chemistry, and therefore the development of catalytic reactions to transform alkynes into other useful functionalities is of great value. In recent decades, extraordinary advances have been made in this area with transition-metal catalysis, and silver-based reagents are ideal for the activation of alkynes. This high reactivity is probably due to the superior π-Lewis acidic, carbophilic behavior of silver(I), allowing it to selectively activate carbon-carbon triple bonds (C≡C) through the formation of a silver-π complex. Within this field, we have been interested in the activation and subsequent reactions of readily accessible terminal alkynes for the synthesis of nitrogen-containing compounds, which has generally received less attention than methods involving internal alkynes. This is possibly due to the lack of suitable reactive reaction partners that are compatible under transition metals. Therefore, a thorough understanding of the factors that influence homogeneous silver catalysis and the identification of the appropriate reaction partners can provide a powerful platform for designing more efficient silver-catalyzed reactions of terminal alkynes. In this context, we envisioned that using readily available, environmentally benign, and inexpensive trimethylsilyl azide (TMSN3) or an isocyanide as the nitrogen-donor would be the key to develop novel reactions of terminal alkynes.This Account describes our efforts since 2013 toward the development of novel silver-catalyzed tandem reactions of terminal alkynes with either TMSN3 or isocyanides for the assembly of various nitrogen-containing compounds. The first section of this Account discusses the initial developments in the silver-catalyzed hydroazidation of terminal alkynes with TMSN3 and the subsequent advances made in our laboratory. We first describe the discovery and experimental and computational mechanistic investigations of silver-catalyzed hydroazidation reactions, which is the most efficient strategy reported to date for accessing vinyl azides. Mechanistic study of this hydroazidation reaction provides an alternative activation mode for terminal alkyne conversion in transition metal catalysis. We then present the chemistry of in situ generated vinyl azides, including one-pot tandem radical addition/cyclization or migration reactions of terminal alkynes to access a variety of nitrogen-containing molecules. Finally, we discuss the one-pot, multistep tandem hydroazidation and 1,2-azide migratory gem-difluorination of terminal alkynes for the synthesis of β-difluorinated alkyl azides. The second section describes the silver-catalyzed coupling reactions between terminal alkynes and isocyanides, which offer a straightforward method for accessing synthetically useful building blocks, such as pyrroles, allenamides, benzofuran, vinyl sulfones, indazolines, propiolonitriles, and pyrazoles. The high efficiency, mild conditions, low cost, broad substrate scope, high chemo- and regioselectivity, step economy, and ecofriendliness of the developed approaches make them attractive and practical. The progress in this area provides guiding principles for designing new reactions of terminal alkynes that can be extended to various nitrogen-containing molecules of interest to medicinal and materials chemists.
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Affiliation(s)
- Paramasivam Sivaguru
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Shanshan Cao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Kaki Raveendra Babu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
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16
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Ma C, Huang G. Montmorillonite K-10 Catalyzed Microwave-Assisted Synthesis of Pyrroles in Solvent Free Conditions. HETEROCYCLES 2020. [DOI: 10.3987/com-20-14350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Silver-promoted regio- and stereoselective aminocyanation of alkynes for the synthesis of β-aminoacrylonitriles using N-isocyanoiminotriphenylphosphorane. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.05.045] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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18
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Yi F, Zhao W, Wang Z, Bi X. Silver-Mediated [3 + 2] Cycloaddition of Alkynes and N-Isocyanoiminotriphenylphosphorane: Access to Monosubstituted Pyrazoles. Org Lett 2019; 21:3158-3161. [PMID: 30990050 DOI: 10.1021/acs.orglett.9b00860] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A silver-mediated [3 + 2] cycloaddition of "CNN" and "C≡C" for constructing pyrazoles has been described. The "CNN" building block used is N-isocyanoiminotriphenylphosphorane, which is a stable, safe, easy-to-handle, and odorless solid isocyanide. The reaction is characterized by its mild conditions, broad substrate scope, and excellent functional group tolerance.
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Affiliation(s)
- Fanhua Yi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry , Northeast Normal University , Changchun 130024 , China
| | - Wanjun Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry , Northeast Normal University , Changchun 130024 , China
| | - Zikun Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry , Northeast Normal University , Changchun 130024 , China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry , Northeast Normal University , Changchun 130024 , China.,State Key Laboratory of Elemento-Organic Chemistry , Nankai University , Tianjin 300071 , China
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19
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Fehér PP, Stirling A. Assessment of reactivities with explicit and implicit solvent models: QM/MM and gas-phase evaluation of three different Ag-catalysed furan ring formation routes. NEW J CHEM 2019. [DOI: 10.1039/c9nj04003j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A representative reaction illustrates cases where strong solvent–solute interactions can be sufficiently well captured by continuum solvation model rendering QM/MM unnecessary.
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Affiliation(s)
- Péter Pál Fehér
- Research Center for Natural Sciences
- Hungarian Academy of Sciences
- Budapest
- Hungary
| | - András Stirling
- Research Center for Natural Sciences
- Hungarian Academy of Sciences
- Budapest
- Hungary
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20
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George J, Kim SY, Oh K. Three-Component Reactions to Spirocyclic Pyrrolidinonylformimidamides: α-Isocyano Lactams as Two-Atom Unit in Silver-Catalyzed Formal [3 + 2] Cycloaddition Reactions. Org Lett 2018; 20:7192-7196. [PMID: 30371083 DOI: 10.1021/acs.orglett.8b03118] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A facile approach to spirocyclic pyrrolidinonylformimidamides has been developed via three-component reactions of isocyanides, alkenes, and amines. The reaction proceeds through a sequence of two distinct reaction pathways; the base-catalyzed conjugate addition of α-isocyano lactams to electron-deficient alkenes and the Ag(I)-catalyzed amine insertion to the isocyanide moiety. Both reactions display markedly different reaction kinetics, allowing the one-pot three-component reactions to be performed in the presence of respective catalysts, a Brønsted base and a silver salt. The formation of spirocyclic pyrrolidin-2-ones represents an unusual use of α-isocyano lactam as a two-atom unit in a formal [3 + 2] cycloaddition reaction. The successful identification of ways to defy the typical three-atom unit role of α-isocyano carbonyl compounds in the [3 + 2] cycloaddition pathways manifests a rapid assembly of medicinally important spirocyclic scaffolds from readily available starting materials.
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Affiliation(s)
- Jimil George
- Center for Metareceptome Research, College of Pharmacy , Chung-Ang University , 84 Heukseok-ro , Dongjak, Seoul 06974 , Republic of Korea
| | - Seong-Yoon Kim
- Center for Metareceptome Research, College of Pharmacy , Chung-Ang University , 84 Heukseok-ro , Dongjak, Seoul 06974 , Republic of Korea
| | - Kyungsoo Oh
- Center for Metareceptome Research, College of Pharmacy , Chung-Ang University , 84 Heukseok-ro , Dongjak, Seoul 06974 , Republic of Korea
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21
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Xiao P, Li CX, Fang WH, Cui G, Thiel W. Mechanism of the Visible-Light-Mediated Copper-Catalyzed Coupling Reaction of Phenols and Alkynes. J Am Chem Soc 2018; 140:15099-15113. [PMID: 30362731 DOI: 10.1021/jacs.8b10387] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A recent experimental study reported a visible-light-mediated aerobic oxidative coupling reaction of phenol with alkynes that produces hydroxyl-functionalized aryl ketones using inexpensive CuCl as catalyst under mild conditions. Here we apply the complete active space self-consistent field (CASSCF) method and multistate second-order perturbation (MS-CASPT2) theory in combination with density functional theory (DFT) to systematically explore the entire photocatalytic reaction between phenol and phenylacetylene in acetonitrile solution in the presence of molecular oxygen and CuCl. Our main findings are as follows: (1) The visible-light-driven conversion of phenylacetylene to PhCCCu(I) occurs thermally because of efficient excited-state deactivation to the S0 state. (2) The single electron transfer from PhCCCu(I) to molecular oxygen that leads to the PhCCCu(II) cation takes place in the T1 state after an efficient S1 → T1 intersystem crossing. (3) During the initial oxidation of phenol, molecular oxygen prefers to attack the para position of the phenol radical intermediate to produce 1,4-benzoquinone, which further reacts with PhCCCu(II) to generate para-hydroxyl-substituted aryl ketones; this is the origin of the experimentally observed regioselectivity. (4) The C≡C bond of the phenylacetylene moiety is not activated by the triplet-state single electron transfer from PhCCCu(I) to molecular oxygen but is cleaved at a later stage, in the [2+2] cycloaddition between PhCCCu(II) and 1,4-benzoquinone. (5) The substrate phenol plays an active role in several hydrogen transfer and decarboxylation reactions; the barriers to these phenol-assisted reactions are lower than those for the corresponding direct or water-assisted reactions, which explains the experimental finding that adding water does not enhance the photocatalytic reaction yield. In summary, while supporting the general features of the experimentally proposed mechanism, our computational study provides detailed mechanistic insights that should be useful for understanding and further improving visible-light-induced copper-catalyzed coupling reactions.
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Affiliation(s)
- Pin Xiao
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Chun-Xiang Li
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Wei-Hai Fang
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Ganglong Cui
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Walter Thiel
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1 , 45470 Mülheim an der Ruhr , Germany
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22
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Yuan WK, Liu YF, Lan Z, Wen LR, Li M. Nickle Catalysis Enables Access to Thiazolidines from Thioureas via Oxidative Double Isocyanide Insertion Reactions. Org Lett 2018; 20:7158-7162. [PMID: 30398058 DOI: 10.1021/acs.orglett.8b03098] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An efficient synthesis of thiazolidine-2,4,5-triimine derivatives was developed via Ni-catalyzed oxidative double isocyanide insertion to thioureas under air conditions, in which thioureas play three roles as a substrate, a ligand, and overcoming isocyanide polymerization. The reaction is featured by employing a low-cost and low loading Ni(acac)2 catalyst, without any additives, and high atom economy. This is the first example to directly apply a Ni(II) catalyst in oxidative double isocyanide insertion reactions.
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Affiliation(s)
- Wen-Kui Yuan
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , P. R. China
| | - Yan Fang Liu
- Shandong Provincial Key Laboratory of Synthetic Biology, Laboratory of Biofuels , Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Qingdao , 266061 , China
| | - Zhenggang Lan
- Shandong Provincial Key Laboratory of Synthetic Biology, Laboratory of Biofuels , Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Qingdao , 266061 , China
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , P. R. China
| | - Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , P. R. China
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23
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Zhang R, Gu ZY, Wang SY, Ji SJ. Co(II)/Ag(I) Synergistically Catalyzed Monoinsertion Reaction of Isocyanide to Terminal Alkynes with H2O: Synthesis of Alkynamide Derivatives. Org Lett 2018; 20:5510-5514. [DOI: 10.1021/acs.orglett.8b02516] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Rong Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Zheng-Yang Gu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Shun-Yi Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
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24
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Zhang X, Liu Z, Gao Y, Li F, Tian Y, Li C, Jia X, Li J. Selective Oxidative Coupling Reaction of Isocyanides Using Peroxide as Switchable Alkylating and Alkoxylating Reagent. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700953] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xinglu Zhang
- Department of Chemistry; Shanghai University; 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Zhiqiang Liu
- Department of Chemistry; Shanghai University; 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Yu Gao
- Department of Pharmacy; China Pharmaceutical University; Nanjing 211198 People's Republic of China
| | - Feng Li
- Department of Chemistry; Shanghai University; 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Yaming Tian
- Department of Chemistry; Shanghai University; 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Chunju Li
- Department of Chemistry; Shanghai University; 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Xueshun Jia
- Department of Chemistry; Shanghai University; 99 Shangda Road Shanghai 200444 People's Republic of China
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 People's Republic of China
| | - Jian Li
- Department of Chemistry; Shanghai University; 99 Shangda Road Shanghai 200444 People's Republic of China
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25
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Ning Y, Zhao XF, Wu YB, Bi X. Radical Enamination of Vinyl Azides: Direct Synthesis of N-Unprotected Enamines. Org Lett 2017; 19:6240-6243. [DOI: 10.1021/acs.orglett.7b03204] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yongquan Ning
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xue-Feng Zhao
- Key
Laboratory of Materials for Energy Conversion and Storage of Shanxi
Province, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Yan-Bo Wu
- Key
Laboratory of Materials for Energy Conversion and Storage of Shanxi
Province, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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26
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Liu Y, Yi X, Luo X, Xi C. MeOTf-Mediated Annulation of Alkylnitriles and Arylalkynes Leading to Polysubstituted NH-Pyrroles. J Org Chem 2017; 82:11391-11398. [DOI: 10.1021/acs.joc.7b01845] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yu Liu
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xiangli Yi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xuewei Luo
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chanjuan Xi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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27
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Hu Z, Dong J, Xu X. Silver-Catalyzed [3+2] Cycloaddition of Azomethine Ylides with Isocyanides for Imidazole Synthesis. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700447] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Zhongyan Hu
- Jilin Province Key Laboratory of Organic Functional Molecular Design and Synthesis, Department of Chemistry; Northeast Normal University; Changchun 130024 People's Republic of China
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Jinhuan Dong
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Xianxiu Xu
- Jilin Province Key Laboratory of Organic Functional Molecular Design and Synthesis, Department of Chemistry; Northeast Normal University; Changchun 130024 People's Republic of China
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
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28
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Zhang J, Wang W, Liu Y, Sun JZ, Qin A, Tang BZ. Facile Polymerization of Water and Triple-Bond Based Monomers toward Functional Polyamides. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01592] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jie Zhang
- MOE
Key Laboratory of Macromolecules Synthesis of Functionalization, Department
of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Wenjie Wang
- MOE
Key Laboratory of Macromolecules Synthesis of Functionalization, Department
of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yong Liu
- Guangdong
Innovative Research Team, State Key Laboratory of Luminescent Materials
and Devices, South China University of Technology, Guangzhou 510640, China
| | - Jing Zhi Sun
- MOE
Key Laboratory of Macromolecules Synthesis of Functionalization, Department
of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Anjun Qin
- MOE
Key Laboratory of Macromolecules Synthesis of Functionalization, Department
of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
- Guangdong
Innovative Research Team, State Key Laboratory of Luminescent Materials
and Devices, South China University of Technology, Guangzhou 510640, China
| | - Ben Zhong Tang
- MOE
Key Laboratory of Macromolecules Synthesis of Functionalization, Department
of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
- Guangdong
Innovative Research Team, State Key Laboratory of Luminescent Materials
and Devices, South China University of Technology, Guangzhou 510640, China
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
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29
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Effects of base strength on the copper-catalyzed cycloisomerization of propargylic acetates to form indolizines: A DFT study. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.09.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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Chen S, Wei W, Wang J, Xia Y, Shen Y, Wu X, Jing H, Liang Y. Palladium‐Catalyzed Isocyanide Insertion with Allylic Esters: Synthesis of
N
‐(But‐2‐enoyl)‐
N
‐(
tert
‐butyl)benzamide Derivatives
via
Intramolecular Acyl Transfer Termination. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700765] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Si Chen
- Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 People's Republic of China
| | - Wan‐Xu Wei
- Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 People's Republic of China
| | - Jia Wang
- Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 People's Republic of China
| | - Yu Xia
- Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 People's Republic of China
| | - Yi Shen
- Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 People's Republic of China
| | - Xin‐Xing Wu
- College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 People's Republic of China
| | - Huanwang Jing
- Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 People's Republic of China
| | - Yong‐Min Liang
- Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 People's Republic of China
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31
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Yuan H, Xiao P, Zheng Y, Zhang J. DFT studies on the mechanism of Ag2
CO3
-catalyzed hydroazidation of unactivated terminal alkynes with TMS-N3
: An insight into the silver(I) activation mode. J Comput Chem 2017; 38:2289-2297. [DOI: 10.1002/jcc.24879] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 06/21/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Haiyan Yuan
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China
| | - Pin Xiao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China
| | - Yiying Zheng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China
| | - Jingping Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry; Northeast Normal University; Renmin Street 5268# Changchun 130024 China
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32
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Fang G, Cong X, Zanoni G, Liu Q, Bi X. Silver-Based Radical Reactions: Development and Insights. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601179] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Guichun Fang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry; Northeast Normal University; Changchun 130024 People's Republic of China
| | - Xuefeng Cong
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry; Northeast Normal University; Changchun 130024 People's Republic of China
| | - Giuseppe Zanoni
- Department of Chemistry; University of Pavia; Viale Taramelli 10 27100 Pavia Italy
| | - Qun Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry; Northeast Normal University; Changchun 130024 People's Republic of China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry; Northeast Normal University; Changchun 130024 People's Republic of China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University, Tianjin; 300071 People's Republic of China
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33
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Theoretical study of Lewis acid activation models for hypervalent fluoroiodane reagent: The generality of “F-coordination” activation model. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.02.040] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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34
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Liu Z, Li Q, Liao P, Bi X. Silver-Catalyzed [2+1] Cyclopropenation of Alkynes with Unstable Diazoalkanes: N-Nosylhydrazones as Room-Temperature Decomposable Diazo Surrogates. Chemistry 2017; 23:4756-4760. [PMID: 27982474 DOI: 10.1002/chem.201605335] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Indexed: 12/23/2022]
Abstract
The [2+1] cycloaddition of alkynes with diazo compounds represents one of the most powerful and reliable methods for the construction of cyclopropenes. However, it remains a formidable challenge to accomplish the cyclopropenation of alkynes with non-stabilized diazoalkanes, owing to the fact that such compounds are unstable and prone to detonation. Herein, we report a general silver-catalyzed cyclopropenation reaction of alkynes with unstable diazoalkanes, by for the first time the discovery and application of N-nosylhydrazones as room-temperature decomposiable diazo surrogates. This method allows for the efficient assembly a wide variety of cyclopropene derivatives that are otherwise difficult to access by conventional methods.
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Affiliation(s)
- Zhaohong Liu
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| | - Qiangqiang Li
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| | - Peiqiu Liao
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, P. R. China
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35
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Zhang L, Xiao P, Guan X, Huang Z, Zhang J, Bi X. Silver-mediated radical coupling reaction of isocyanides and alcohols/phenols in the presence of water: unprecedented hydration and radical coupling reaction sequence. Org Biomol Chem 2017; 15:1580-1583. [DOI: 10.1039/c7ob00019g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The first radical coupling of isocyanides and alcohols/phenols promoted by silver in the presence of water is reported.
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Affiliation(s)
- Lin Zhang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Pin Xiao
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Xiaoxue Guan
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Zhouliang Huang
- Department of Life Sciences
- Jilin University
- Changchun 130012
- China
| | - Jingping Zhang
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Xihe Bi
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
- China
- State Key Laboratory of Elemento-Organic Chemistry
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36
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Xiao P, Wu D, Fang WH, Cui G. Mechanistic insights into the light-driven hydrogen evolution reaction from formic acid mediated by an iridium photocatalyst. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00785j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electronic structure calculations shed important mechanistic light on light-driven hydrogen evolution from formic acid mediated by an iridium photocatalyst.
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Affiliation(s)
- Pin Xiao
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Dan Wu
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Wei-Hai Fang
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Ganglong Cui
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
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37
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38
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Zhou B, Yan T, Xue XS, Cheng JP. Mechanism of Silver-Mediated Geminal Difluorination of Styrenes with a Fluoroiodane Reagent: Insights into Lewis-Acid-Activation Model. Org Lett 2016; 18:6128-6131. [PMID: 27934395 DOI: 10.1021/acs.orglett.6b03134] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Fluorination mediated by the cyclic hypervalent fluoroiodane reagent (1) often requires an exogenous Lewis acid. The widely accepted Lewis-acid-activation model is that a given Lewis acid binds to the oxygen atom of 1 (O-coordination) to polarize the I-O bond. Computational studies of silver-mediated geminal difluorination of styrenes with 1 reveal a new "F-coordination" model that is energetically much preferred over the commonly accepted "O-coordination" model. The calculations rationalize the regioselective formation of the geminal difluorination product.
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Affiliation(s)
| | | | | | - Jin-Pei Cheng
- Center of Basic Molecular Science, Department of Chemistry, Tsinghua University , Beijing 100084, China
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39
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Zhang L, Sun G, Bi X. Rhodium/Silver-Cocatalyzed Transannulation of N-Sulfonyl-1,2,3-triazoles with Vinyl Azides: Divergent Synthesis of Pyrroles and 2 H-Pyrazines. Chem Asian J 2016; 11:3018-3021. [PMID: 27643511 DOI: 10.1002/asia.201601164] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Indexed: 11/05/2022]
Abstract
The first cyclization reaction between vinyl azides and N-sulfonyl-1,2,3-triazoles is reported. A Rh/Ag binary metal catalyst system proved to be necessary for the successful cyclization. By varying the structure of vinyl azides, such reaction allows the divergent synthesis of pyrroles and 2H-pyrazines. The cyclization reactions feature a broad substrate scope, good functional group tolerance, high reaction efficiency, and good to high product yields.
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Affiliation(s)
- Lin Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China
| | - Ge Sun
- College of Pharmacy, Qiqihar Medical University, 333 Bukui Street, 161006, Qiqihar, China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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40
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Liu J, Zheng Y, Liu Y, Yuan H, Zhang J. Mechanistic insight on (E)-methyl 3-(2-aminophenyl)acrylate cyclization reaction by multicatalysis of solvent and substrate. J Comput Chem 2016; 37:2386-94. [PMID: 27487815 DOI: 10.1002/jcc.24463] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 07/11/2016] [Accepted: 07/11/2016] [Indexed: 12/17/2022]
Abstract
The reaction mechanism of (E)-methyl 3-(2-aminophenyl)acrylate (A) with phenylisothiocyanate (B) as well as the vital roles of substrate A and solvent water were investigated under unassisted, water-assisted, substrate A-assisted, and water-A-assisted conditions. The reaction proceeds with four processes via nucleophilic addition, deprotonation and protonation, intramolecular cyclization with hydrogen transfer, and keto-enol tautomerization. According to the different H-shift mode, two possible types of H-shift P1 and P2 are carefully investigated to identify the most preferred pathway, differing in the NH2 group deprotonation and CH group of A protonation processes. It is found that substrate A and water not only act as reactant and solvent, but also as catalyst, proton shuttle, and stabilizer in effectively lowering the energy barrier. Therefore, the results demonstrate that the strong donating and accepting ability of NH2 group on A and the presence of bulk water are the keys to the title reaction proceed. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Jiahui Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Renmin Street 5268#, Changchun, 130024, China
| | - Yiying Zheng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Renmin Street 5268#, Changchun, 130024, China
| | - Ying Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Renmin Street 5268#, Changchun, 130024, China
| | - Haiyan Yuan
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Renmin Street 5268#, Changchun, 130024, China.
| | - Jingping Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Renmin Street 5268#, Changchun, 130024, China.
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41
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Wang H, Kumar RK, Yu Y, Zhang L, Liu Z, Liao P, Bi X. Silver-Catalyzed Isocyanide-Isocyanide [3+2] Cross-Cycloaddition Involving 1,2-Group Migration: Efficient Synthesis of Trisubstituted lmidazoles. Chem Asian J 2016; 11:2841-2845. [PMID: 27459607 DOI: 10.1002/asia.201601024] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Indexed: 01/01/2023]
Abstract
Imidazole ring is an important five-membered aromatic heterocycle that is widely present in natural products and synthetic molecules. The isocyanide-isocyanide [3+2] cross-cycloaddition reaction constitutes a straightforward method to access imidazoles starting from the easily available chemicals. So far, only three successive reports are known and all lead to the formation of 1,4-disubstituted imidazoles. Here, we report the first isocyanide-isocyanide [3+2] cross-cycloaddition reaction allowing for the formation of 1,4,5-trisubstituted imidazoles under silver catalysis. An unexpected 1,2-migration of sulfonyl, alkoxycaybonyl, and carbamoyl groups took place during the cyclization process that is responsible for the formation of trisubstituted imidazoles. This report displayed a mechanistically novel synthetic method toward a variety of imidazole derivatives, which are otherwise difficult to access by conventional methods.
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Affiliation(s)
- Hongwei Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China
| | - Rapolu Kiran Kumar
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China
| | - Yang Yu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China
| | - Lin Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China
| | - Zhaohong Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China
| | - Peiqiu Liao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Renmin Str. 5268#, Changchun, 130024, China. .,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China.
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42
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Mou XQ, Xu ZL, Xu L, Wang SH, Zhang BH, Zhang D, Wang J, Liu WT, Bao W. The Synthesis of Multisubstituted Pyrroles via a Copper-Catalyzed Tandem Three-Component Reaction. Org Lett 2016; 18:4032-5. [DOI: 10.1021/acs.orglett.6b01883] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xue-Qing Mou
- School
of Pharmacy and State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zheng-Liang Xu
- School
of Pharmacy and State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Li Xu
- School
of Pharmacy and State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Shao-Hua Wang
- School
of Pharmacy and State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Bang-Hong Zhang
- School
of Pharmacy and State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Di Zhang
- School
of Pharmacy and State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jie Wang
- School
of Pharmacy and State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Wei-Ting Liu
- School
of Pharmacy and State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Wen Bao
- School
of Pharmacy and State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
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43
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Chen J, Guo W, Xia Y. Computational Revisit to the β-Carbon Elimination Step in Rh(III)-Catalyzed C–H Activation/Cycloaddition Reactions of N-Phenoxyacetamide and Cyclopropenes. J Org Chem 2016; 81:2635-8. [DOI: 10.1021/acs.joc.6b00003] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Jiajia Chen
- College of Chemistry and
Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Wei Guo
- College of Chemistry and
Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Yuanzhi Xia
- College of Chemistry and
Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
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44
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Sadjadi S, Heravi MM, Nazari N. Isocyanide-based multicomponent reactions in the synthesis of heterocycles. RSC Adv 2016. [DOI: 10.1039/c6ra02143c] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
In this review, we update our previous presentation, underscoring the recent applications of isocyanides as privileged synthons in the synthesis of various heterocyclic compounds, especially focused on those synthesizedviamulticomponent reactions.
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Affiliation(s)
- Samahe Sadjadi
- Gas Conversion Department
- Faculty of Petrochemicals
- Iran Polymer and Petrochemical Institute
- Tehran
- Iran
| | - Majid M. Heravi
- Department of Chemistry
- School of Science
- Alzahra University
- Tehran
- Iran
| | - Niousha Nazari
- Department of Chemistry
- School of Science
- Alzahra University
- Tehran
- Iran
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45
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Zhang LJ, Xu MC, Liu J, Zhang XM. Tandem cycloaddition–decarboxylation of α-keto acid and isocyanide under oxidant-free conditions towards monosubstituted oxazoles. RSC Adv 2016. [DOI: 10.1039/c6ra16031j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
An efficient method, tandem [3 + 2] cycloaddition–decarboxylation of α-keto acid and isocyanide promoted by copper salt, has been developed for constructing monosubstituted oxazole. The elegant approach ingeniously avoids consuming excess oxidants.
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Affiliation(s)
- Ling-Juan Zhang
- School of Chemistry & Material Science
- Shanxi Normal University
- Linfen
- P. R. China
| | - Mei-Chen Xu
- School of Chemistry & Material Science
- Shanxi Normal University
- Linfen
- P. R. China
| | - Jie Liu
- School of Chemistry & Material Science
- Shanxi Normal University
- Linfen
- P. R. China
| | - Xian-Ming Zhang
- School of Chemistry & Material Science
- Shanxi Normal University
- Linfen
- P. R. China
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46
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Qi X, Zhang H, Shao A, Zhu L, Xu T, Gao M, Liu C, Lan Y. Silver Migration Facilitates Isocyanide-Alkyne [3 + 2] Cycloaddition Reactions: Combined Experimental and Theoretical Study. ACS Catal 2015. [DOI: 10.1021/acscatal.5b02009] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Xiaotian Qi
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Heng Zhang
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Ailong Shao
- National
Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Lei Zhu
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Ting Xu
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Meng Gao
- National
Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
| | - Chao Liu
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), CAS, Lanzhou 730000, P. R. China
| | - Yu Lan
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, P. R. China
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