1
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McNeill F, Twamley B, Guiry PJ. Asymmetric Synthesis of Quaternary α-Aryl Stereocentres in Benzofuran-3(2H)-Ones Using Decarboxylative Asymmetric Allylic Alkylation. Chemistry 2024:e202401738. [PMID: 38752722 DOI: 10.1002/chem.202401738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Indexed: 06/27/2024]
Abstract
The Pd-catalysed decarboxylative asymmetric allylic alkylation (DAAA) has been applied to the enantioselective synthesis of sterically hindered benzofuran-3(2H)-one-derived α-aryl-β-keto esters employing the (R,R)-ANDEN phenyl Trost ligand. A range of substrates were synthesised, employing previously developed aryllead triacetate methodology to install various aryl groups. The resulting α-aryl-α-allyl benzofuran-3(2H)-one DAAA products were obtained in moderate to high yields and in enantioselectivities of up to 96 % ee, with the best results observed for substrates containing a di-ortho-substitution pattern on the aryl ring as well as naphthyl-containing substrates.
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Affiliation(s)
- Fionn McNeill
- Centre for Synthesis and Chemical Biology, School of Chemistry, University College Dublin Belfield, Dublin 4, Ireland
| | - Brendan Twamley
- School of Chemistry, Trinity College Dublin, The University of Dublin College Green, Dublin 2, Ireland
| | - Patrick J Guiry
- Centre for Synthesis and Chemical Biology, School of Chemistry, University College Dublin Belfield, Dublin 4, Ireland
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2
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van der Westhuizen D, Castro AC, Hazari N, Gevorgyan A. Bulky, electron-rich, renewable: analogues of Beller's phosphine for cross-couplings. Catal Sci Technol 2023; 13:6733-6742. [PMID: 38026730 PMCID: PMC10680433 DOI: 10.1039/d3cy01375h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023]
Abstract
In recent years, considerable progress has been made in the conversion of biomass into renewable chemicals, yet the range of value-added products that can be formed from biomass remains relatively small. Herein, we demonstrate that molecules available from biomass serve as viable starting materials for the synthesis of phosphine ligands, which can be used in homogeneous catalysis. Specifically, we prepared renewable analogues of Beller's ligand (di(1-adamantyl)-n-butylphosphine, cataCXium® A), which is widely used in homogeneous catalysis. Our new renewable phosphine ligands facilitate Pd-catalysed Suzuki-Miyaura, Stille, and Buchwald-Hartwig coupling reactions with high yields, and our catalytic results can be rationalized based on the stereoelectronic properties of the ligands. The new phosphine ligands generate catalytic systems that can be applied for the late-stage functionalization of commercial drugs.
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Affiliation(s)
| | - Abril C Castro
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo 0315 Oslo Norway
| | - Nilay Hazari
- Department of Chemistry, Yale University New Haven Connecticut 06520 USA
| | - Ashot Gevorgyan
- Department of Chemistry, UiT The Arctic University of Norway 9037 Tromsø Norway
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3
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Luo Y, Wei Q, Yang L, Zhou Y, Cao W, Su Z, Liu X, Feng X. Enantioselective Radical Hydroacylation of α,β-Unsaturated Carbonyl Compounds with Aldehydes by Triplet Excited Anthraquinone. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04047] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yao Luo
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Qi Wei
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Liangkun Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yuqiao Zhou
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Weidi Cao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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4
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Shen J, Zhang Y, Xue Y. Theoretical Insights into Enantioselective [3 + 2] Cycloaddition between Cinnamaldehyde and Cyclic N-Sulfonyl Trifluoromethylated Ketimine Catalyzed by N-Heterocyclic Carbene. J Phys Chem A 2022; 126:3124-3134. [PMID: 35549275 DOI: 10.1021/acs.jpca.2c00900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The density functional theory (DFT) method was used to investigate the mechanism and the origin of stereoselectivity of N-heterocyclic carbene (NHC)-catalyzed [3 + 2] cycloaddition between enals and cyclic imine N-sulfonyl trifluoromethyl ketimines at the M06-2X/SMD/6-311+G(d,p)//M06-2X/SMD/6-31G (d,p) level. The results show that the favorable reaction path consists of five steps: nucleophilic attack, proton transfer, the formation of the C-C bond, the tautomerism of the enol intermediate, the formation of the five-membered ring, and the regeneration of the catalyst. For the process of proton transfer, the base-assisted reaction can reduce the activation free energy and make the reaction easier to occur compared with the direct proton transfer process. The formation of the C-C bond is the crucial step of stereoselectivity, in which two chiral centers and four configurations of intermediates (RR/RS/SR/SS) were generated. The free energy barriers obtained and the noncovalent interaction analysis confirm that the dominant configuration is SS, becoming the final trans-type product observed in experiment. Furthermore, through the analyses of the conceptual DFT and natural atomic charges, it is revealed that NHC acts as a double catalyst, which can not only increase the nucleophilicity of reactants by Lewis base but also activate the C-H bond and promote the proton transfer process. The understanding of the mechanism obtained in this study should be helpful to the other organic catalytic reactions with high stereoselectivity.
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Affiliation(s)
- Jingyi Shen
- College of Chemistry, Key Lab of Green Chemistry and Technology in Ministry of Education, Sichuan University, Chengdu 610064, People's Republic of China
| | - Yan Zhang
- College of Chemistry, Key Lab of Green Chemistry and Technology in Ministry of Education, Sichuan University, Chengdu 610064, People's Republic of China
| | - Ying Xue
- College of Chemistry, Key Lab of Green Chemistry and Technology in Ministry of Education, Sichuan University, Chengdu 610064, People's Republic of China
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5
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Zhu A, Sun Y, Lai J, Chen Z, Bu X, Yue YN, Ma M, Xue F. One-Pot Synthesis of 2,3-Disubstituted Indanone Derivatives in Water under Exogenous Ligand-Free and Mild Conditions. J Org Chem 2022; 87:7884-7894. [PMID: 35611883 DOI: 10.1021/acs.joc.2c00544] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Diverse 2,3-substituted indanones are accessed in an efficient and robust protocol by a rhodium-catalyzed tandem carborhodium/cyclization and intramolecular proton shift pathway. The reaction is compatible with a broad range of functional internal acetylenes, especially for natural and functionalized alkynes derivatives, affording the desired indanones in good to excellent yields. Remarkably, this reaction features very mild and sustainable conditions using water as the sole solvent and without exogenous ligands. Control studies support that indanone is formed through the intramolecular proton transfer process from the key intermediate indenol.
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Affiliation(s)
- Anqiao Zhu
- Institute of Material Physics & Chemistry, College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Yu Sun
- Institute of Material Physics & Chemistry, College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Jingru Lai
- Institute of Material Physics & Chemistry, College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Ziyan Chen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road Nanjing 211816, P. R. China
| | - Xiaoli Bu
- Institute of Material Physics & Chemistry, College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Yan-Ni Yue
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road Nanjing 211816, P. R. China
| | - Mengtao Ma
- Institute of Material Physics & Chemistry, College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Fei Xue
- Institute of Material Physics & Chemistry, College of Science, Nanjing Forestry University, Nanjing 210037, China
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6
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Sharma D, Chatterjee R, Dhayalan V, Dandela R. Recent Advances in Enantioselective Organocatalytic Reactions Enabled by NHCs Containing Triazolium Motifs. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1856-5688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
N-Heterocyclic carbenes (NHCs) containing triazolium motifs have emerged as a powerful tool in organocatalysis. Recently, various NHC pre-catalyst mediated organic transformations have been developed successfully. This article aims to compile the current state of knowledge on NHC-triazolium catalysed enantioselective name reactions and introduce newly developed catalytic methods. Furthermore, this review article framework provides an excellent opportunity to highlight some of the unique applications of these catalytic procedures in the natural product synthesis of biologically active compounds, notably the wide range of preparation of substituted chiral alcohols, and their derivatives. This article provides an overview of chiral NHC triazolium-catalyst libraries synthesis and their catalytic application in enantioselective reactions.
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Affiliation(s)
- Deepika Sharma
- Dept. of Industrial and Engineering Chemistry, Institute of Chemical Technology, Indian oil Odisha Campus, Bhubaneswar-, Bhubaneswar, India
| | - Rana Chatterjee
- Chemistry, Institute of Chemical Technology, Indian oil Odisha Campus, Bhubaneswar, Bhubaneswar, India
| | | | - Rambabu Dandela
- Dept. of Industrial and Engineering Chemistry, Institute of Chemical Technology- IOC Bhubaneswar, Bhubaneswar, India
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7
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Thalakottukara DD, Gandhi T. NHC‐Organocatalysed Hydroacylation of Unactivated or Weakly Activated C−C Multiple Bonds and Ketones. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dolly David Thalakottukara
- Department of Chemistry School of Advanced Sciences Vellore Institute of Technology Vellore 632014 Tamilnadu India
| | - Thirumanavelan Gandhi
- Department of Chemistry School of Advanced Sciences Vellore Institute of Technology Vellore 632014 Tamilnadu India
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8
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Li QZ, Zeng R, Fan Y, Liu YQ, Qi T, Zhang X, Li JL. Remote C(sp 3 )-H Acylation of Amides and Cascade Cyclization via N-Heterocyclic Carbene Organocatalysis. Angew Chem Int Ed Engl 2022; 61:e202116629. [PMID: 35112461 DOI: 10.1002/anie.202116629] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Indexed: 11/08/2022]
Abstract
The direct functionalization of inert C(sp3 )-H bonds under environmentally benign catalytic conditions remains a challenging task in synthetic chemistry. Here, we report an organocatalytic remote C(sp3 )-H acylation of amides and cascade cyclization through a radical-mediated 1,5-hydrogen atom transfer mechanism using N-heterocyclic carbene as the catalyst. Notably, a diversity of nitrogen-containing substrates, including simple linear aliphatic carbamates and ortho-alkyl benzamides, can be successfully applied to this organocatalytic system. With the established protocol, over 120 examples of functionalized δ-amino ketones and isoquinolinones with diverse substituents were easily synthesized in up to 99 % yield under mild conditions. The robustness and generality of the organocatalytic strategy were further highlighted by the successful acylation of unactivated C(sp3 )-H bonds and late-stage modification of pharmaceutical molecules. Then, the asymmetric control of the radical reaction was attempted and proven feasible by using a newly designed chiral thiazolium catalyst, and moderate enantioselectivity was obtained at the current stage. Preliminary mechanistic investigations including several control reactions, KIE experiments, and computational studies shed light on the organocatalytic radical reaction mechanism.
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Affiliation(s)
- Qing-Zhu Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610106, China
| | - Rong Zeng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610106, China
| | - Yang Fan
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610106, China
| | - Yan-Qing Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610106, China
| | - Ting Qi
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610106, China.,College of Chemical Engineering, Sichuan University, Chengdu, 610065, China
| | - Xiang Zhang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610106, China
| | - Jun-Long Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610106, China
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9
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Li Q, Zeng R, Fan Y, Liu Y, Qi T, Zhang X, Li J. Remote C(sp
3
)−H Acylation of Amides and Cascade Cyclization via N‐Heterocyclic Carbene Organocatalysis. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Qing‐Zhu Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 China
| | - Rong Zeng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 China
| | - Yang Fan
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 China
| | - Yan‐Qing Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 China
| | - Ting Qi
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 China
- College of Chemical Engineering Sichuan University Chengdu 610065 China
| | - Xiang Zhang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 China
| | - Jun‐Long Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu University Chengdu 610106 China
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10
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Shelke YG, Hande PE, Gharpure SJ. Recent advances in the synthesis of pyrrolo[1,2- a]indoles and their derivatives. Org Biomol Chem 2021; 19:7544-7574. [PMID: 34524330 DOI: 10.1039/d1ob01103k] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The pyrrolo[1,2-a]indole unit is a privileged heterocycle found in numerous natural products and has been shown to exhibit diverse pharmacological properties. Thus, recent years have witnessed immense interest from the synthesis community on the synthesis of this scaffold. In light of the ever-increasing demand for pyrrolo[1,2-a]indoles in drug discovery, this review provides an overview of recent synthesis methods for the preparation of pyrrolo[1,2-a]indoles and their derivatives. The mechanistic pathway and stereo-electronic factors affecting the yield and selectivity of the product are briefly explained. Furthermore, we have attempted to demonstrate the utility of the developed methods in the synthesis of bioactive molecules and natural products, wherever offered.
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Affiliation(s)
- Yogesh G Shelke
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Pankaj E Hande
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Santosh J Gharpure
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
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11
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Liu M, Wang X, Guo Z, Li H, Huang W, Xu H, Dai HX. Pd-Catalyzed Asymmetric Acyl-Carbamoylation of an Alkene to Construct an α-Quaternary Chiral Cycloketone. Org Lett 2021; 23:6299-6304. [PMID: 34350756 DOI: 10.1021/acs.orglett.1c02093] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, we report the palladium-catalyzed asymmetric acyl-carbamoylation of an alkene by employing thioesters as the acyl electrophiles and t-BuNC as the carbamoyl reagent, affording an α-quaternary chiral cycloketone in synthetically useful yields with excellent enantioselectivity. The reaction proceeded via asymmetric 1,2-migratory insertions of acyl-Pd into alkenes and subsequent migratory insertion of isocyanides into C(sp3)-PdII. The product could be diversified to some valuable skeletons with retention of enantiopurity, demonstrating the synthetic utility of this protocol.
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Affiliation(s)
- Min Liu
- Chinese Academy of Sciences Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xing Wang
- Chinese Academy of Sciences Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ziqiong Guo
- Chinese Academy of Sciences Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai 201203, China
| | - Hanyuan Li
- Chinese Academy of Sciences Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai 201203, China
| | - Wei Huang
- School of Pharmacy, Nanchang University, Nanchang 330006, China
| | - Hui Xu
- Chinese Academy of Sciences Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hui-Xiong Dai
- Chinese Academy of Sciences Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China
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12
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Barman D, Ghosh T, Show K, Debnath S, Ghosh T, Maiti DK. NHC-Mediated Stetter-Aldol and Imino-Stetter-Aldol Domino Cyclization to Naphthalen-1(2 H)-ones and Isoquinolines. Org Lett 2021; 23:2178-2182. [PMID: 33661653 DOI: 10.1021/acs.orglett.1c00337] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
N-Heterocyclic carbene-catalyzed tandem Stetter-aldol reaction of phthalaldehyde and α,β-unsaturated ketimines has been developed to afford functionalized naphthalen-1(2H)-one derivatives as the formal [4+2] annulation product. Interestingly, the reaction of aldimines led to the formation of isoquinoline derivatives instead of the expected indanone derivatives as a [4+1] annulation product.
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Affiliation(s)
- Debabrata Barman
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| | - Tanmoy Ghosh
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| | - Krishanu Show
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| | - Sudipto Debnath
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| | - Tapas Ghosh
- Department of Applied Science, Maulana Abul Kalam Azad University of Technology, Haringhata 741249, West Bengal, India
| | - Dilip K Maiti
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
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13
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Ling B, Yang W, Wang YE, Mao J. Cooperative N-Heterocyclic Carbene/Palladium-Catalyzed Umpolung 1,4-Addition of Vinyl Bromides to Enals. Org Lett 2020; 22:9603-9608. [DOI: 10.1021/acs.orglett.0c03654] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bo Ling
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P.R. China
| | - Wenjun Yang
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P.R. China
| | - Yan-En Wang
- College of Science, Hebei Agricultural University, Baoding 071000, P.R. China
| | - Jianyou Mao
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P.R. China
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14
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Zhang J, Ni T, Yang WL, Deng WP. Catalytic Asymmetric [3 + 2] Annulation via Indolyl Copper-Allenylidene Intermediates: Diastereo- and Enantioselective Assembly of Pyrrolo[1,2- a]indoles. Org Lett 2020; 22:4547-4552. [PMID: 32453576 DOI: 10.1021/acs.orglett.0c01594] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A catalytic asymmetric decarboxylative [3 + 2] annulation via indolyl copper-allenylidene amphiphilic intermediates has been developed. This protocol offers a straightforward method for the synthesis of biologically important pyrrolo[1,2-a]indoles bearing contiguous quaternary and tertiary stereogenic centers with excellent diastereo- and enantioselectivities (up to >20:1 dr and >99% ee). In addition, the diversity-oriented synthesis of pyrrolo[1,2-a]indoles was achieved via versatile transformations of the alkyne-containing cycloadducts.
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Affiliation(s)
- Jian Zhang
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Tao Ni
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wu-Lin Yang
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wei-Ping Deng
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.,Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China
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15
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Yang W, Wang H, Pan Z, Li Z, Deng W. Asymmetric synthesis of pyrrolo[1,2-a]indoles via organocatalytic [3 + 2] annulation of substituted 2-vinylindoles with azlactones. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.09.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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16
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Sun S, Lang M, Wang J. N‐Heterocyclic Carbene‐Catalyzed
β
‐Indolylation of
α
‐Bromoenals with Indoles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900699] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Shaofa Sun
- College of Chemistry and Biological SciencesHubei University of Science and Technology Hubei 437100 People's Republic of China
| | - Ming Lang
- School of Pharmaceutical SciencesTsinghua University Beijing 100084 People's Republic of China
| | - Jian Wang
- School of Pharmaceutical SciencesTsinghua University Beijing 100084 People's Republic of China
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17
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Feng ZN, Luo JY, Zhang Y, Du GF, He L. N-Heterocyclic carbene-catalyzed diastereoselective synthesis of sulfenylated indanes via sulfa-Michael-Michael (aldol) cascade reactions. Org Biomol Chem 2019; 17:4700-4704. [PMID: 31020285 DOI: 10.1039/c9ob00210c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
N-Heterocyclic carbene (NHC)-catalyzed diastereoselective synthesis of multisubstituted sulfenylated indanes has been developed. In the presence of 1 mol% NHC, various thiols underwent the sulfa-Michael-Michael cascade reaction with benzenedi(enones) efficiently to form the carbon-sulfur bond and construct sulfenylated indanes in good to excellent yields with high diastereoselectivity. In addition, the NHC-catalyzed sulfa-Michael-aldol cascade reaction between o-formyl chalcone and thiols has also been demonstrated to afford sulfenylated indanes with a free hydroxyl group in moderate yields and good diastereoselectivity.
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Affiliation(s)
- Ze-Nan Feng
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region, 832000, People's Republic of China.
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18
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Baccalini A, Vergura S, Dolui P, Zanoni G, Maiti D. Recent advances in cobalt-catalysed C–H functionalizations. Org Biomol Chem 2019; 17:10119-10141. [DOI: 10.1039/c9ob01994d] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Ready availability, low cost and low toxicity of cobalt salts have redirected the attention of researchers away from noble metals, such as Pd, Rh, and Ir, towards Co in the field of C–H functionalisation.
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Affiliation(s)
| | | | - Pravas Dolui
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | | | - Debabrata Maiti
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
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19
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Chang MY, Hsiao YT, Lai KH. mCPBA-Mediated Intramolecular Oxidative Annulation of ortho-Crotyl or Cinnamyl Arylaldehydes: Synthesis of Benzofused Five-, Six-, and Seven-Membered Oxacycles. J Org Chem 2018; 83:14110-14119. [PMID: 30351146 DOI: 10.1021/acs.joc.8b02146] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
mCPBA-mediated intramolecular oxidative annulation of ortho-crotyl or cinnamyl arylaldehydes provides chroman, coumaran, isochroman, and tetrahydrobenzo[ c]oxepine under different reaction conditions. This research investigates the reaction conditions for facile and efficient transformation.
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Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan.,Department of Medical Research , Kaohsiung Medical University Hospital , Kaohsiung 807 , Taiwan
| | - Yu-Ting Hsiao
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan
| | - Kai-Hsiang Lai
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan
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20
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He G, Wu C, Zhou J, Yang Q, Zhang C, Zhou Y, Zhang H, Liu H. A Method for Synthesis of 3-Hydroxy-1-indanones via Cu-Catalyzed Intramolecular Annulation Reactions. J Org Chem 2018; 83:13356-13362. [PMID: 30295478 DOI: 10.1021/acs.joc.8b02149] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
We report a facile and highly efficient method that copper-catalyzed intramolecular annulation to synthesize 3-hydroxy-1-indanones employing simple 2-ethynylbenzaldehyde as starting materials was achieved successfully. This protocol provided a simple synthetic approach to afford 3-hydroxy-1-indanones under mild conditions in good to excellent yields.
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Affiliation(s)
- Guoxue He
- Key Laboratory of Radiopharmaceuticals of Ministry of Education, College of Chemistry , Beijing Normal University , No. 19 Xinjiekouwai Street, Haidian District , Beijing 100875 , People's Republic of China
| | - Chenglin Wu
- State Key Laboratory of Drug Research and Key Laboratory of Receptor Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zu Chong Zhi Road , Shanghai 201203 , China
| | - Jianhui Zhou
- State Key Laboratory of Drug Research and Key Laboratory of Receptor Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zu Chong Zhi Road , Shanghai 201203 , China
| | - Qiaolan Yang
- State Key Laboratory of Drug Research and Key Laboratory of Receptor Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zu Chong Zhi Road , Shanghai 201203 , China
| | - Chunmei Zhang
- State Key Laboratory of Drug Research and Key Laboratory of Receptor Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zu Chong Zhi Road , Shanghai 201203 , China
| | - Yu Zhou
- State Key Laboratory of Drug Research and Key Laboratory of Receptor Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zu Chong Zhi Road , Shanghai 201203 , China
| | - Huabei Zhang
- Key Laboratory of Radiopharmaceuticals of Ministry of Education, College of Chemistry , Beijing Normal University , No. 19 Xinjiekouwai Street, Haidian District , Beijing 100875 , People's Republic of China
| | - Hong Liu
- State Key Laboratory of Drug Research and Key Laboratory of Receptor Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zu Chong Zhi Road , Shanghai 201203 , China
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21
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Wang B, Huang L, Hou Y, Lan S, Cheng J. N-Heterocyclic Carbene (NHC) Organocatalytic One-Pot Reaction for the Enantioselective Synthesis of Fluoromethylated Chromenones. Org Lett 2018; 20:6012-6016. [PMID: 30260653 DOI: 10.1021/acs.orglett.8b02300] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient carbene organocatalyzed route to enantioenriched chromenones, bearing one tri- or difluoromethylated stereogenic center in the β position of the carbonyl group, from o-allyloxybenzaldehydes is described. The one-pot transition-metal-free transformation exhibits a broad substrate scope and excellent enantioselectivity.
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Affiliation(s)
- Baoxu Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry , Fuzhou University , Fuzhou 350116 , P. R. China
| | - Liangsen Huang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry , Fuzhou University , Fuzhou 350116 , P. R. China
| | - Yuchen Hou
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry , Fuzhou University , Fuzhou 350116 , P. R. China
| | - Shouang Lan
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry , Fuzhou University , Fuzhou 350116 , P. R. China
| | - Jiajia Cheng
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry , Fuzhou University , Fuzhou 350116 , P. R. China.,State Key Laboratory of Structural Chemistry , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou , Fujian 350002 , P. R. China
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22
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Satpathi B, Mondal A, Ramasastry SSV. Organocatalytic Strategies for the Synthesis of Cyclopenta-Fused Arenes and Heteroarenes. Chem Asian J 2018; 13:1642-1653. [PMID: 29673100 DOI: 10.1002/asia.201800389] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 04/19/2018] [Indexed: 12/22/2022]
Abstract
Cyclopentanoids are omnipresent in natural products and pharmaceutically relevant compounds. Among them, cyclopenta-fused arenes and heteroarenes possess impressive biological properties and play significant role in materials science. Consequently, several notable methods have been developed for their synthesis over the years. In this review, we mainly described metal-free and organocatalytic approaches that led to the construction of pentannulated arenes and heteroarenes.
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Affiliation(s)
- Bishnupada Satpathi
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, S. A. S. Nagar, Manauli PO, Punjab, 140306, India
| | - Atanu Mondal
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, S. A. S. Nagar, Manauli PO, Punjab, 140306, India
| | - S S V Ramasastry
- Organic Synthesis and Catalysis Lab, Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, S. A. S. Nagar, Manauli PO, Punjab, 140306, India
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23
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Zhao M, Liu JL, Liu HF, Chen J, Zhou L. Construction of Bisbenzopyrone via N-Heterocyclic Carbene Catalyzed Intramolecular Hydroacylation–Stetter Reaction Cascade. Org Lett 2018; 20:2676-2679. [DOI: 10.1021/acs.orglett.8b00882] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Ming Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Jia-Lin Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Hang-Fan Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Jie Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Ling Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
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24
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Tu PC, Zhou L, Kirillov AM, Fang R, Yang L. Computational study on the NHC-catalyzed synthesis of 2,3-disubstituted indoles: mechanism, key intermediate and the role of the catalyst. Org Chem Front 2018. [DOI: 10.1039/c8qo00139a] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Mechanism, key intermediate and role of NHC for NHC-catalyzed umpolung of imines are clarified through our calculations.
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Affiliation(s)
- Peng-Cheng Tu
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Lin Zhou
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Alexander M. Kirillov
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Universidade de Lisboa
- Lisbon
| | - Ran Fang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Lizi Yang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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25
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Affiliation(s)
- Kolluru Srinivas
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Chepuri V. Ramana
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
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26
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Zhao M, Zhang YT, Chen J, Zhou L. Enantioselective Reactions Catalyzed by N-Heterocyclic Carbenes. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700538] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ming Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science; Northwest University; Xi'an 710127 P. R. China
| | - Yu-Tong Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science; Northwest University; Xi'an 710127 P. R. China
| | - Jie Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science; Northwest University; Xi'an 710127 P. R. China
| | - Ling Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science; Northwest University; Xi'an 710127 P. R. China
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27
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Selvakumar S, Kang QK, Arumugam N, Almansour AI, Kumar RS, Maruoka K. Hypervalent iodine(III) catalyzed radical hydroacylation of chiral alkylidenemalonates with aliphatic aldehydes under photolysis. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.08.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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28
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Das TK, Biju AT. A Method for the Analysis of Free Carbenes Present after NHC-Organocatalyzed Transformations. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700903] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tamal Kanti Das
- Organic Chemistry Division; CSIR National Chemical Laboratory; Dr. Homi Bhabha Road 411008 Pune Maharashtra India
- Academy of Scientific and Innovative Research (AcSIR); 110020 New Delhi India
| | - Akkattu T. Biju
- Organic Chemistry Division; CSIR National Chemical Laboratory; Dr. Homi Bhabha Road 411008 Pune Maharashtra India
- Academy of Scientific and Innovative Research (AcSIR); 110020 New Delhi India
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29
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Kim DK, Riedel J, Kim RS, Dong VM. Cobalt Catalysis for Enantioselective Cyclobutanone Construction. J Am Chem Soc 2017; 139:10208-10211. [PMID: 28704053 PMCID: PMC6824591 DOI: 10.1021/jacs.7b05327] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Over the past 40 years, intramolecular hydroacylation has favored five-membered rings, in preference to four membered rings. Herein, we report a catalyst derived from earth-abundant cobalt that enables preparation of cyclobutanones, with excellent regio-, diastereo-, and enantiocontrol, under mild conditions (2 mol % catalyst loading and as low as 50 °C).
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Affiliation(s)
- Daniel K. Kim
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Jan Riedel
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Raphael S. Kim
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Vy M. Dong
- Department of Chemistry, University of California, Irvine, California 92697, United States
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30
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Fernández DF, Gulías M, Mascareñas JL, López F. Iridium(I)-Catalyzed Intramolecular Hydrocarbonation of Alkenes: Efficient Access to Cyclic Systems Bearing Quaternary Stereocenters. Angew Chem Int Ed Engl 2017. [PMID: 28632957 DOI: 10.1002/anie.201705105] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A catalytic, versatile and atom-economical C-H functionalization process that provides a wide variety of cyclic systems featuring methyl-substituted quaternary stereocenters is described. The method relies on the use of a cationic IrI -bisphosphine catalyst, which promotes a carboxamide-assisted activation of an olefinic C(sp2 )-H bond followed by exo-cyclization to a tethered 1,1-disubstituted alkene. The extension of the method to aromatic and heteroaromatic C-H bonds, as well as developments on an enantioselective variant, are also described.
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Affiliation(s)
- David F Fernández
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - José L Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Fernando López
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain.,Instituto de Química Orgánica General (CSIC), Spain
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31
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Fernández DF, Gulías M, Mascareñas JL, López F. Iridium(I)-Catalyzed Intramolecular Hydrocarbonation of Alkenes: Efficient Access to Cyclic Systems Bearing Quaternary Stereocenters. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705105] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- David F. Fernández
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - José L. Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - Fernando López
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
- Instituto de Química Orgánica General (CSIC); Spain
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32
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Zhou Y, Bandar JS, Buchwald SL. Enantioselective CuH-Catalyzed Hydroacylation Employing Unsaturated Carboxylic Acids as Aldehyde Surrogates. J Am Chem Soc 2017; 139:8126-8129. [PMID: 28565905 PMCID: PMC5587210 DOI: 10.1021/jacs.7b04937] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The direct asymmetric copper hydride (CuH)-catalyzed coupling of α,β-unsaturated carboxylic acids to aryl alkenes to access chiral α-aryl dialkyl ketones is reported. A variety of substrate substitution patterns, sensitive functional groups, and heterocycles are tolerated in this reaction, which significantly expands the range of accessible products compared with existing hydroacylation methodology. Although mechanistic studies are ongoing, we propose that CuH-catalyzed silylation of unsaturated acids occurs to access a uniquely effective acyl electrophilic coupling partner.
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Affiliation(s)
- Yujing Zhou
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - Jeffrey S. Bandar
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - Stephen L. Buchwald
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
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33
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Saito M, Kobayashi Y, Tsuzuki S, Takemoto Y. Electrophilic Activation of Iodonium Ylides by Halogen-Bond-Donor Catalysis for Cross-Enolate Coupling. Angew Chem Int Ed Engl 2017; 56:7653-7657. [DOI: 10.1002/anie.201703641] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Masato Saito
- Graduate School of Pharmaceutical Sciences; Kyoto University, Yoshida, Sakyo-ku; Kyoto 606-8501 Japan
| | - Yusuke Kobayashi
- Graduate School of Pharmaceutical Sciences; Kyoto University, Yoshida, Sakyo-ku; Kyoto 606-8501 Japan
| | - Seiji Tsuzuki
- Research Initiative of Computational Sciences (RICS); Nanosystem Research Institute (NRI); National Institute of Advanced Industrial Science and Technology (AIST); 1-1-1 Umezono Tsukuba Ibaraki 3 05-8568 Japan
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences; Kyoto University, Yoshida, Sakyo-ku; Kyoto 606-8501 Japan
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34
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Saito M, Kobayashi Y, Tsuzuki S, Takemoto Y. Electrophilic Activation of Iodonium Ylides by Halogen-Bond-Donor Catalysis for Cross-Enolate Coupling. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201703641] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Masato Saito
- Graduate School of Pharmaceutical Sciences; Kyoto University, Yoshida, Sakyo-ku; Kyoto 606-8501 Japan
| | - Yusuke Kobayashi
- Graduate School of Pharmaceutical Sciences; Kyoto University, Yoshida, Sakyo-ku; Kyoto 606-8501 Japan
| | - Seiji Tsuzuki
- Research Initiative of Computational Sciences (RICS); Nanosystem Research Institute (NRI); National Institute of Advanced Industrial Science and Technology (AIST); 1-1-1 Umezono Tsukuba Ibaraki 3 05-8568 Japan
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences; Kyoto University, Yoshida, Sakyo-ku; Kyoto 606-8501 Japan
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35
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Zhang ZF, Zhu DX, Chen WW, Xu B, Xu MH. Enantioselective Synthesis of gem-Diaryl Benzofuran-3(2H)-ones via One-Pot Asymmetric Rhodium/Palladium Relay Catalysis. Org Lett 2017; 19:2726-2729. [DOI: 10.1021/acs.orglett.7b01070] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zong-Feng Zhang
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Dong-Xing Zhu
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wen-Wen Chen
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bin Xu
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
| | - Ming-Hua Xu
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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36
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Jacolot M, Moebs-Sanchez S, Popowycz F. Enantioselective rhodium-catalyzed hydroacylation to access the four stereoisomers of anti-rodent difenacoum. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Liu S, Zeng X, Xu B. (E
)-Alkene Synthesis via Nano-Copper/Homogeneous Palladium Co-Catalysis and Selectivity Amplification. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700091] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Shiwen Liu
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 China
| | - Xiaojun Zeng
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 China
| | - Bo Xu
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 China
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38
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Janssen-Müller D, Singha S, Lied F, Gottschalk K, Glorius F. NHC-organokatalysierte CAr
-O-Bindungsspaltung: milder Zugang zu 2-Hydroxybenzophenonen. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201610203] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Daniel Janssen-Müller
- Westfälische Wilhelms-Universität Münster; Organisch-Chemisches Institut; Corrensstraße 40 48149 Münster Deutschland
| | - Santanu Singha
- Westfälische Wilhelms-Universität Münster; Organisch-Chemisches Institut; Corrensstraße 40 48149 Münster Deutschland
| | - Fabian Lied
- Westfälische Wilhelms-Universität Münster; Organisch-Chemisches Institut; Corrensstraße 40 48149 Münster Deutschland
| | - Karin Gottschalk
- Westfälische Wilhelms-Universität Münster; Organisch-Chemisches Institut; Corrensstraße 40 48149 Münster Deutschland
| | - Frank Glorius
- Westfälische Wilhelms-Universität Münster; Organisch-Chemisches Institut; Corrensstraße 40 48149 Münster Deutschland
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39
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Patra A, Mukherjee S, Das TK, Jain S, Gonnade RG, Biju AT. N-Heterocyclic-Carbene-Catalyzed Umpolung of Imines. Angew Chem Int Ed Engl 2017; 56:2730-2734. [DOI: 10.1002/anie.201611268] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 01/04/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Atanu Patra
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Subrata Mukherjee
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Tamal Kanti Das
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Shailja Jain
- Physical/Materials Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
| | - Rajesh G. Gonnade
- Centre for Materials Characterization; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
| | - Akkattu T. Biju
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
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40
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Janssen-Müller D, Singha S, Lied F, Gottschalk K, Glorius F. NHC-Organocatalyzed CAr
−O Bond Cleavage: Mild Access to 2-Hydroxybenzophenones. Angew Chem Int Ed Engl 2017; 56:6276-6279. [DOI: 10.1002/anie.201610203] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 01/03/2017] [Indexed: 12/24/2022]
Affiliation(s)
- Daniel Janssen-Müller
- Westfälische Wilhelms-Universität Münster; Organisch-Chemisches Institut; Corrensstrasse 40 48149 Münster Germany
| | - Santanu Singha
- Westfälische Wilhelms-Universität Münster; Organisch-Chemisches Institut; Corrensstrasse 40 48149 Münster Germany
| | - Fabian Lied
- Westfälische Wilhelms-Universität Münster; Organisch-Chemisches Institut; Corrensstrasse 40 48149 Münster Germany
| | - Karin Gottschalk
- Westfälische Wilhelms-Universität Münster; Organisch-Chemisches Institut; Corrensstrasse 40 48149 Münster Germany
| | - Frank Glorius
- Westfälische Wilhelms-Universität Münster; Organisch-Chemisches Institut; Corrensstrasse 40 48149 Münster Germany
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41
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Patra A, Mukherjee S, Das TK, Jain S, Gonnade RG, Biju AT. N-Heterocyclic-Carbene-Catalyzed Umpolung of Imines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611268] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Atanu Patra
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Subrata Mukherjee
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Tamal Kanti Das
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Shailja Jain
- Physical/Materials Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
| | - Rajesh G. Gonnade
- Centre for Materials Characterization; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
| | - Akkattu T. Biju
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
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42
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Yang J, Rérat A, Lim YJ, Gosmini C, Yoshikai N. Cobalt-Catalyzed Enantio- and Diastereoselective Intramolecular Hydroacylation of Trisubstituted Alkenes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611518] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Junfeng Yang
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Alice Rérat
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
- Laboratoire de Chimie Moléculaire; CNRS; Ecole Polytechnique; Université Paris Saclay; 91128 Palaiseau France
| | - Yang Jie Lim
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Corinne Gosmini
- Laboratoire de Chimie Moléculaire; CNRS; Ecole Polytechnique; Université Paris Saclay; 91128 Palaiseau France
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
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43
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Yang J, Rérat A, Lim YJ, Gosmini C, Yoshikai N. Cobalt-Catalyzed Enantio- and Diastereoselective Intramolecular Hydroacylation of Trisubstituted Alkenes. Angew Chem Int Ed Engl 2017; 56:2449-2453. [DOI: 10.1002/anie.201611518] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 12/22/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Junfeng Yang
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Alice Rérat
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
- Laboratoire de Chimie Moléculaire; CNRS; Ecole Polytechnique; Université Paris Saclay; 91128 Palaiseau France
| | - Yang Jie Lim
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Corinne Gosmini
- Laboratoire de Chimie Moléculaire; CNRS; Ecole Polytechnique; Université Paris Saclay; 91128 Palaiseau France
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
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44
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Yuan H, Zhang L, Liu Z, Liu Y, Wang J, Li W. A NHC-catalyzed 1,3-dipolar cycloaddition reaction of allyl ketones with azides: direct access to 1,4,5-trisubstituted 1,2,3-triazoles. Org Biomol Chem 2017; 15:4286-4290. [DOI: 10.1039/c7ob00906b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A NHC-catalyzed 1,3-dipolar cycloaddition reaction of allyl ketones with azides has been developed. This strategy could generate 1,4,5-trisubstituted 1,2,3-triazoles in high yields and regioselectivities in the presence of a 20 mol% N-heterocyclic carbene catalyst. A broad substrate scope of this process is also presented.
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Affiliation(s)
- Huijun Yuan
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Lili Zhang
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Zhantao Liu
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Yang Liu
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Jian Wang
- School of Chemical & Environmental Engineering
- Wuyi University
- Jiangmen
- China
- School of Pharmaceutical Sciences
| | - Wenjun Li
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
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45
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Di Carmine G, Ragno D, De Risi C, Bortolini O, Giovannini PP, Fantin G, Massi A. Synthesis of functionalized imidazolidine-2-thiones via NHC/base-promoted aza-benzoin/aza-acetalization domino reactions. Org Biomol Chem 2017; 15:8788-8801. [DOI: 10.1039/c7ob02259j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Benzylidene thioureas were generated in situ from α-sulfonylamines and used as novel umpolung acceptors in aza-benzoin/aza-acetalization domino reactions giving 5-hydroxy-imidazolidine-2-thiones.
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Affiliation(s)
- Graziano Di Carmine
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- I-44121 Ferrara
- Italy
| | - Daniele Ragno
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- I-44121 Ferrara
- Italy
| | - Carmela De Risi
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- I-44121 Ferrara
- Italy
| | - Olga Bortolini
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- I-44121 Ferrara
- Italy
| | - Pier Paolo Giovannini
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- I-44121 Ferrara
- Italy
| | - Giancarlo Fantin
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- I-44121 Ferrara
- Italy
| | - Alessandro Massi
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- I-44121 Ferrara
- Italy
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46
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Yuan H, Gao H, Liu K, Liu Z, Wang J, Li W. Cycloadduct formation of α,β-unsaturated esters with azides catalyzed by NHC systems. Org Biomol Chem 2017; 15:9066-9070. [DOI: 10.1039/c7ob02469j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
NHC-catalyzed cycloadduct formation of α,β-unsaturated esters with azides has been developed. This strategy could generate 1,2,3-triazoles and dihydropyrazoles with high yields and regioselectivities. The broad substrate scope and mechanistic survey of this process are also presented.
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Affiliation(s)
- Huijun Yuan
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Hua Gao
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Kun Liu
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Zhantao Liu
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Jian Wang
- School of Chemical & Environmental Engineering
- Wuyi University
- Jiangmen
- China
- School of Pharmaceutical Sciences
| | - Wenjun Li
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
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47
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Zhang ZF, Chen KQ, Zhang CL, Ye S. N-heterocyclic carbene-catalyzed synthesis of spirocyclopentene-oxindoles from bromoenals. Chem Commun (Camb) 2017; 53:4327-4330. [DOI: 10.1039/c6cc10304a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Spirocyclopentene-oxindoles were synthesized in good yields with good diastereo- and enantioselectivitiesviathe N-heterocyclic carbene-catalyzed reaction of bromoenals and oxindoles.
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Affiliation(s)
- Zhao-Fei Zhang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry, Chinese Academy of Sciences
- Beijing 100190
- China
| | - Kun-Quan Chen
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry, Chinese Academy of Sciences
- Beijing 100190
- China
| | - Chun-Lin Zhang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry, Chinese Academy of Sciences
- Beijing 100190
- China
| | - Song Ye
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry, Chinese Academy of Sciences
- Beijing 100190
- China
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48
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Rastelli EJ, Truong NT, Coltart DM. Asymmetric Induction in Hydroacylation by Cooperative Iminium Ion–Transition-Metal Catalysis. Org Lett 2016; 18:5588-5591. [DOI: 10.1021/acs.orglett.6b02825] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ettore J. Rastelli
- Department
of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Ngoc T. Truong
- Department
of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Don M. Coltart
- Department
of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
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49
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Johnson KF, Schneider EA, Schumacher BP, Ellern A, Scanlon JD, Stanley LM. Rhodium-Catalyzed Enantioselective Intramolecular Hydroacylation of Trisubstituted Alkenes. Chemistry 2016; 22:15619-15623. [DOI: 10.1002/chem.201603880] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Indexed: 01/26/2023]
Affiliation(s)
| | | | - Brian P. Schumacher
- Department of Chemistry; Ripon College; Ripon WI 54971 USA
- Department of Chemistry; Iowa State University; Ames IA 50010 USA
| | - Arkady Ellern
- Department of Chemistry; Iowa State University; Ames IA 50010 USA
| | | | - Levi M. Stanley
- Department of Chemistry; Iowa State University; Ames IA 50010 USA
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50
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Ghosh A, Bainbridge DT, Stanley LM. Enantioselective Model Synthesis and Progress toward the Putative Structure of Yuremamine. J Org Chem 2016; 81:7945-51. [PMID: 27494137 DOI: 10.1021/acs.joc.6b01730] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
An enantioselective model synthesis of the 2,3-dihydro-1H-pyrrolo[1,2-a]indole core of the putative structure of yuremamine is reported in 39% overall yield and 96% ee over five steps. The model synthesis leverages enantioselective, rhodium-catalyzed hydroacylation of an N-vinylindole-2-carboxaldehyde as the key step in the installation of the stereochemical triad. An enantioselective synthesis of a densely functionalized dihydropyrroloindolone that maps onto the putative structure of yuremamine is demonstrated in 26% yield and 97% ee over eight steps.
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Affiliation(s)
- Avipsa Ghosh
- Department of Chemistry, Iowa State University , Ames, Iowa 50011, United States
| | - David T Bainbridge
- Department of Chemistry, Iowa State University , Ames, Iowa 50011, United States
| | - Levi M Stanley
- Department of Chemistry, Iowa State University , Ames, Iowa 50011, United States
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