51
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Li X, Liu YQ, Kang JW, Chen FY, He XG, Yuan SS, Guo L, Peng C, Huang W. Synthesis of Vinylcyclopropane-Fused Pyrazolone Derivatives by Sulfur Ylide-Initiated 1,6-Michael Addition-Cyclization Reactions. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800710] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiang Li
- Ministry of Education Key Laboratory of Standardization of Chinese Medicine; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; 611137 Chengdu China
| | - Yan-Qing Liu
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; 611137 Chengdu China
| | - Jing-Wen Kang
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; 611137 Chengdu China
| | - Fei-Yu Chen
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; 611137 Chengdu China
| | - Xi-Guo He
- Ministry of Education Key Laboratory of Standardization of Chinese Medicine; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; 611137 Chengdu China
| | - Shan-Shan Yuan
- Ministry of Education Key Laboratory of Standardization of Chinese Medicine; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; 611137 Chengdu China
| | - Li Guo
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; 611137 Chengdu China
| | - Cheng Peng
- Ministry of Education Key Laboratory of Standardization of Chinese Medicine; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; 611137 Chengdu China
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; 611137 Chengdu China
| | - Wei Huang
- Ministry of Education Key Laboratory of Standardization of Chinese Medicine; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; 611137 Chengdu China
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52
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Zhao HW, Feng NN, Guo JM, Du J, Ding WQ, Wang LR, Song XQ. Diastereoselective and Enantioselective Synthesis of Barbiturate-Fused Spirotetrahydroquinolines via Chiral Palladium(0)/Ligand Complex Catalyzed [4 + 2] Cycloaddition of Vinyl Benzoxazinanones with Barbiturate-Based Olefins. J Org Chem 2018; 83:9291-9299. [PMID: 30019580 DOI: 10.1021/acs.joc.8b01268] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Under the catalysis of chiral palladium(0)/ligand complex, the [4 + 2] cycloaddition between vinyl benzoxazinanones and barbiturate-based olefins proceeded readily and provided barbiturate-fused spirotetrahydroquinolines in up to 96% chemical yield with up to >99:1 dr and 97% ee. The absolute configuration of barbiturate-fused spirotetrahydroquinolines was clearly identified by X-ray single crystal structure analysis. The reaction mechanism was proposed to shed light on the enantioselective formation of barbiturate-fused spirotetrahydroquinolines.
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Affiliation(s)
- Hong-Wu Zhao
- College of Life Science and Bio-engineering , Beijing University of Technology , No.100 Pingleyuan, Chaoyang District , Beijing 100124 , P. R. China
| | - Ning-Ning Feng
- College of Life Science and Bio-engineering , Beijing University of Technology , No.100 Pingleyuan, Chaoyang District , Beijing 100124 , P. R. China
| | - Jia-Ming Guo
- College of Life Science and Bio-engineering , Beijing University of Technology , No.100 Pingleyuan, Chaoyang District , Beijing 100124 , P. R. China
| | - Juan Du
- College of Life Science and Bio-engineering , Beijing University of Technology , No.100 Pingleyuan, Chaoyang District , Beijing 100124 , P. R. China
| | - Wan-Qiu Ding
- College of Life Science and Bio-engineering , Beijing University of Technology , No.100 Pingleyuan, Chaoyang District , Beijing 100124 , P. R. China
| | - Li-Ru Wang
- College of Life Science and Bio-engineering , Beijing University of Technology , No.100 Pingleyuan, Chaoyang District , Beijing 100124 , P. R. China
| | - Xiu-Qing Song
- College of Life Science and Bio-engineering , Beijing University of Technology , No.100 Pingleyuan, Chaoyang District , Beijing 100124 , P. R. China
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53
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Xu H, Kang TC, Sha F, Wu XY. Enantioselective Mannich reaction between rhodanines and isatin-derived ketimines to construct vicinal tetrasubstituted stereocenters. Org Biomol Chem 2018; 16:5780-5787. [PMID: 30052256 DOI: 10.1039/c8ob01524d] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An organocatalytic enantioselective Mannich reaction between rhodanines and isatin-derived ketimines was developed. With 2 mol% of a quinine-based tertiary amine-thiourea catalyst C2, 3,3-disubstituted oxindoles with vicinal tetrasubstituted stereocenters were obtained in moderate-to-excellent yields (43-99%) with excellent diastereoselectivities (98 : 2-99 : 1 dr) and good-to-excellent enantioselectivities (up to 97% ee). The readily available substrates, low catalyst loading and high stereoselectivity are the major features.
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Affiliation(s)
- Han Xu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
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54
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Li X, Guo L, Peng C, Han B. Organocatalytic Asymmetric Cascade Reactions Based on Gamma-Nitro Carbonyl Compound. CHEM REC 2018; 19:394-423. [PMID: 30019511 DOI: 10.1002/tcr.201800047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 06/19/2018] [Indexed: 12/11/2022]
Abstract
The significant advancements in asymmetric organocascade reactions have been accomplished during the past decades, paving the way to the efficient and stereoselective construction of structurally complex scaffolds from simple and readily available starting materials. Nitro-containing cyclic compounds have become a privileged molecular library given their broad and promising activities in various therapeutic areas. In various approaches to build these valuable scaffolds, the utility of γ-nitrocarbonyl intermediates is one of the most efficient approaches due to its high efficiency, reliability and versatility. The strategies and catalyst systems described here highlight recent advances in the enantioselective synthesis of nitro-containing cyclic molecules via organocascade strategies based on γ-nitrocarbonyl intermediates. Various organocatalysts with distinct activation modes have found application in providing these sophisticated compounds. This review is organized according to the types of organocatalyst. These methods are of importance for the construction of complex chiral cyclic frameworks and the design of new pharmaceutical compounds. We believe that compounds based on nitro-containing cyclic skeletons have the potential to provide novel therapeutic agents and useful biological tools.
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Affiliation(s)
- Xiang Li
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Li Guo
- Ministry of Education Key Laboratory of Standardization of Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Peng
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Ministry of Education Key Laboratory of Standardization of Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Bo Han
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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55
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Song YX, Du DM. Asymmetric Construction of Bispiro[oxindole-pyrrolidine-rhodanine]s via Squaramide-Catalyzed Domino Michael/Mannich [3 + 2] Cycloaddition of Rhodanine Derivatives with N-(2,2,2-Trifluoroethyl)isatin Ketimines. J Org Chem 2018; 83:9278-9290. [DOI: 10.1021/acs.joc.8b01245] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yong-Xing Song
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Da-Ming Du
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
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56
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Chen N, Zhu L, Gan L, Liu Z, Wang R, Cai X, Jiang X. Asymmetric Synthesis of Bispiro[γ-butyrolactone-pyrrolidin-4,4′-pyrazolone] Scaffolds Containing Two Quaternary Spirocenters via an Organocatalytic 1,3-Dipolar Cycloaddition. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800404] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Nannan Chen
- School of Pharmaceutical Sciences; Sun Yat-sen University; 510006 Guangzhou China
| | - Liping Zhu
- School of Pharmaceutical Sciences; Sun Yat-sen University; 510006 Guangzhou China
| | - Lu Gan
- School of Pharmaceutical Sciences; Sun Yat-sen University; 510006 Guangzhou China
| | - Zhenquan Liu
- School of Pharmaceutical Sciences; Sun Yat-sen University; 510006 Guangzhou China
| | - Rui Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province; School of Basic Medical Sciences; Lanzhou University; 730000 Lanzhou China
| | - Xiaoqing Cai
- School of Pharmaceutical Sciences; Sun Yat-sen University; 510006 Guangzhou China
| | - Xianxing Jiang
- School of Pharmaceutical Sciences; Sun Yat-sen University; 510006 Guangzhou China
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57
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Frankowski S, Gajda T, Albrecht Ł. Isothiocyanate Strategy for the Synthesis of Quaternary α-Amino Acids Bearing a Spirocyclic Ring System. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701642] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Sebastian Frankowski
- Institute of Organic Chemistry; Department of Chemistry; Lodz University of Technology; Zeromskiego 116, 90-924 Łódź Poland
| | - Tadeusz Gajda
- Institute of Organic Chemistry; Department of Chemistry; Lodz University of Technology; Zeromskiego 116, 90-924 Łódź Poland
| | - Łukasz Albrecht
- Institute of Organic Chemistry; Department of Chemistry; Lodz University of Technology; Zeromskiego 116, 90-924 Łódź Poland
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58
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Enantioselective γ -addition reaction of rhodanines to allenoates catalyzed by chiral phosphine-carbamate. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.12.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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59
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Frota C, Polo EC, Esteves H, Correia CRD. Regioselective and Stereoselective Heck-Matsuda Arylations of Trisubstituted Allylic Alkenols and Their Silyl and Methyl Ether Derivatives To Access Two Contiguous Stereogenic Centers: Expanding the Redox-Relay Process and Application in the Total Synthesis of meso-Hexestrol. J Org Chem 2018; 83:2198-2209. [PMID: 29364666 DOI: 10.1021/acs.joc.7b03098] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Novel palladium-catalyzed redox-relay Heck arylation reactions of trisubstituted allylic alkenols were developed employing silyl and methyl ethers. The reactions proceeded under mild conditions in moderate to high yields in an excellent anti diastereoselectivity to form α,β-disubstituted methyl ketones containing two contiguous stereocenters. The new redox-relay arylations using silyl and methyl ethers of the starting alkenols demonstrate that the presence of a free hydroxyl group is not a sine qua non condition for an effective redox-relay process as previously thought. Deuterium-labeled alkenols 2-d-10a, 2-d-10b, and 2-d-10c permitted tracking the palladium-hydride reinsertion steps in the conversion of the starting free alcohols, silyl, and methyl ethers into the corresponding methyl ketone 3-d-11a, with >98% deuterium retention. Moreover, the synthetic potential of the method was demonstrated with a straightforward synthesis of the meso-hexestrol in 4 steps, in 41% overall yield from alkenol 10a.
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Affiliation(s)
- Carlise Frota
- Institute of Chemistry, University of Campinas , 13083-970, Campinas, São Paulo, Brazil
| | - Ellen Christine Polo
- Institute of Chemistry, University of Campinas , 13083-970, Campinas, São Paulo, Brazil
| | - Henrique Esteves
- Institute of Chemistry, University of Campinas , 13083-970, Campinas, São Paulo, Brazil
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60
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Ding A, Meazza M, Guo H, Yang JW, Rios R. New development in the enantioselective synthesis of spiro compounds. Chem Soc Rev 2018; 47:5946-5996. [DOI: 10.1039/c6cs00825a] [Citation(s) in RCA: 217] [Impact Index Per Article: 36.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this review we summarize the latest developments in the enantioselective synthesis of spirocompounds. The most important organometallic and organocatalytic methodologies are highlighted.
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Affiliation(s)
- Aishun Ding
- Department of Chemistry
- Fudan University
- Shanghai
- People's Republic of China
| | - Marta Meazza
- School of Chemistry. University of Southampton. Highfield Campus
- Southampton
- UK
| | - Hao Guo
- Department of Chemistry
- Fudan University
- Shanghai
- People's Republic of China
| | - Jung Woon Yang
- Department of Energy Science
- Sungkyunkwan University
- Suwon 16419
- South Korea
| | - Ramon Rios
- School of Chemistry. University of Southampton. Highfield Campus
- Southampton
- UK
- Department of Energy Science
- Sungkyunkwan University
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61
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Lokshin V, Khodorkovsky V. Stereochemistry in control of photochemical reactivity: 2,6-Diaryl-4 H -spiro[cyclohexane-1,2′-indene]-1′,3′,4-triones. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.12.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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62
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Liu S, Bao X, Wang B. Pyrazolone: a powerful synthon for asymmetric diverse derivatizations. Chem Commun (Camb) 2018; 54:11515-11529. [DOI: 10.1039/c8cc06196c] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This feature article reports recent advances in the asymmetric diverse derivatizations of the pyrazolone scaffold.
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Affiliation(s)
- Siyuan Liu
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Xiaoze Bao
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
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63
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Zhang Y, Wang C, Huang W, Haruehanroengra P, Peng C, Sheng J, Han B, He G. Application of organocatalysis in bioorganometallic chemistry: asymmetric synthesis of multifunctionalized spirocyclic pyrazolone–ferrocene hybrids as novel RalA inhibitors. Org Chem Front 2018. [DOI: 10.1039/c8qo00422f] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Asymmetric construction of chiral spirocyclic pyrazolone–ferrocene hybrids has been developed. The lead compound displayed potent RalA inhibition.
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Affiliation(s)
- Yuehua Zhang
- State Key Laboratory of Biotherapy and Cancer Center
- West China Hospital
- Sichuan University
- Chengdu 610041
- China
| | - Chunting Wang
- State Key Laboratory of Biotherapy and Cancer Center
- West China Hospital
- Sichuan University
- Chengdu 610041
- China
| | - Wei Huang
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Phensinee Haruehanroengra
- Department of Chemistry and The RNA Institute
- University at Albany
- State University of New York
- Albany
- USA
| | - Cheng Peng
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Jia Sheng
- Department of Chemistry and The RNA Institute
- University at Albany
- State University of New York
- Albany
- USA
| | - Bo Han
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
- Department of Chemistry and The RNA Institute
| | - Gu He
- State Key Laboratory of Biotherapy and Cancer Center
- West China Hospital
- Sichuan University
- Chengdu 610041
- China
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64
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Zhao Q, Peng C, Huang H, Liu SJ, Zhong YJ, Huang W, He G, Han B. Asymmetric synthesis of tetrahydroisoquinoline-fused spirooxindoles as Ras-GTP inhibitors that inhibit colon adenocarcinoma cell proliferation and invasion. Chem Commun (Camb) 2018; 54:8359-8362. [PMID: 29993051 DOI: 10.1039/c8cc04732d] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We report the synthesis of a library of chiral THIQ-fused spirooxindoles. The most potent compound inhibits Ras-GTP, ultimately leading to mitochondrial apoptosis.
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Affiliation(s)
- Qian Zhao
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Cheng Peng
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Hua Huang
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Shuai-Jiang Liu
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Ya-Jun Zhong
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Wei Huang
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Gu He
- State Key Laboratory of Biotherapy and Cancer Center
- West China Hospital
- Sichuan University
- Chengdu 610041
- China
| | - Bo Han
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
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65
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Li SW, Kang Q. Catalytic asymmetric synthesis of diphenylbutazone analogues. Chem Commun (Camb) 2018; 54:10479-10482. [DOI: 10.1039/c8cc06426a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The asymmetric Michael addition of diphenylbutazone and its analogues to α,β-unsaturated 2-acyl imidazoles has been developed with a chiral-at-metal Rh(iii) complex as a catalyst.
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Affiliation(s)
- Shi-Wu Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- P. R. China
| | - Qiang Kang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- P. R. China
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66
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Tang X, Zhu HP, Zhou J, Chen Y, Pan XL, Guo L, Li JL, Peng C, Huang W. Highly diastereoselective synthesis of cyclopropane-fused spiro-pseudoindoxyl derivatives through [2 + 1] annulation of 2-ylideneoxindoles and sulfonium bromides. Org Biomol Chem 2018; 16:8169-8174. [DOI: 10.1039/c8ob02034e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We developed an efficient method for diastereoselective synthesis of cyclopropane-fused spiropseudoindoxyl derivatives through [2 + 1] annulation.
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Affiliation(s)
- Xue Tang
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
| | - Hong-Ping Zhu
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
| | - Jin Zhou
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
| | - Yang Chen
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
| | - Xiao-Li Pan
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
| | - Li Guo
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
| | - Jun-Long Li
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- China
| | - Cheng Peng
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
| | - Wei Huang
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
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67
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Yavari I, Naeimabadi M, Sheykhahmadi J, Bahemmat S, Halvagar MR. Diastereoselective Synthesis of Spirocyclopropane-Linked Pyrazolones from Azomethine Ylides via C(sp3)-H Activation. ChemistrySelect 2017. [DOI: 10.1002/slct.201701906] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Issa Yavari
- Department of Chemistry; Tarbiat Modares University, PO Box 14115-175; Tehran Iran
| | - Maryam Naeimabadi
- Department of Chemistry; Tarbiat Modares University, PO Box 14115-175; Tehran Iran
| | - Jamil Sheykhahmadi
- Department of Chemistry; Tarbiat Modares University, PO Box 14115-175; Tehran Iran
| | - Samira Bahemmat
- Department of Inorganic Chemistry; Chemistry and Chemical Engineering Research Centre of Iran, PO Box 14335-186; Tehran Iran
| | - Mohammad Reza Halvagar
- Department of Inorganic Chemistry; Chemistry and Chemical Engineering Research Centre of Iran, PO Box 14335-186; Tehran Iran
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68
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Yang MC, Peng C, Huang H, Yang L, He XH, Huang W, Cui HL, He G, Han B. Organocatalytic Asymmetric Synthesis of Spiro-oxindole Piperidine Derivatives That Reduce Cancer Cell Proliferation by Inhibiting MDM2–p53 Interaction. Org Lett 2017; 19:6752-6755. [PMID: 29210587 DOI: 10.1021/acs.orglett.7b03516] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ming-Cheng Yang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Cheng Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Hua Huang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Lei Yang
- State Key Laboratory of Biotherapy, West
China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiang-Hong He
- State Key Laboratory of Biotherapy, West
China Hospital, Sichuan University, Chengdu 610041, China
| | - Wei Huang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Hai-Lei Cui
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Gu He
- State Key Laboratory of Biotherapy, West
China Hospital, Sichuan University, Chengdu 610041, China
| | - Bo Han
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
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69
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Xie X, Huang W, Peng C, Han B. Organocatalytic Asymmetric Synthesis of Six-Membered Carbocycle-Based Spiro Compounds. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700927] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xin Xie
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 People's Republic of China
| | - Wei Huang
- Ministry of Education Key Laboratory of Standardization of Chinese Medicine, School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 People's Republic of China
| | - Cheng Peng
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 People's Republic of China
- Ministry of Education Key Laboratory of Standardization of Chinese Medicine, School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 People's Republic of China
| | - Bo Han
- State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 People's Republic of China
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70
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Mondal S, Bera S, Maity S, Ghosh P. Cobalt Ion Promoted Redox Cascade: A Route to Spiro Oxazine-Oxazepine Derivatives and a Dinuclear Cobalt(III) Complex of an N-(1,4-Naphthoquinone)-o-aminophenol Derivative. Inorg Chem 2017; 56:13194-13204. [PMID: 29035522 DOI: 10.1021/acs.inorgchem.7b01961] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The study discloses that the redox activity of N-(1,4-naphthoquinone)-o-aminophenol derivatives (LRH2) containing a (phenol)-NH-(1,4-naphthoquinone) fragment is notably different from that of a (phenol)-NH-(phenol) precursor. The former is a platform for a redox cascade. LRH2 is redox noninnocent and exists in Cat-N-(1,4-naphthoquinone)(2-) (LR 2-) and SQ-N-(1,4-naphthoquinone) (LR •-) states in the complexes. Reactions of LRH2 with cobalt(II) salts in MeOH in air promote a cascade affording spiro oxazine-oxazepine derivatives (OXLR) in good yields, when R = H, Me, tBu. Spiro oxazine-oxazepine derivatives are bioactive, and such a molecule has so far not been isolated by a schematic route. In this context this cascade is significant. Dimerization of LRH2 → OXLR in MeOH is a (6H+ + 6e) oxidation reaction and is composed of formations of four covalent bonds and 6-exo-trig and 7-endo-trig cyclization based on C-O coupling reactions, where MeOH is the source of a proton and the ester function. It was established that the active cascade precursor is [(LMe •-)CoIIICl2] (A). Notably, formation of a spiro derivative was not detected in CH3CN and the reaction ends up furnishing A. The route of the reaction is tunable by R, when R = NO2, it is a (2e + 4H+) oxidation reaction affording a dinuclear LR 2- complex of cobalt(III) of the type [(LNO2 2-)2CoIII2(OMe)2(H2O)2] (1) in good yields. No cascade occurs with zinc(II) ion even in MeOH and produces a LMe •- complex of type [(LMe •-)ZnIICl2] (2). The intermediate A and 2 exhibit strong EPR signals at g = 2.008 and 1.999, confrming the existence of LMe •- coordinated to low-spin cobalt(III) and zinc(II) ions. The intermediates of LRH2 → OXLR conversion were analyzed by ESI mass spectrometry. The molecular geometries of OXLR and 1 were confirmed by X-ray crystallography, and the spectral features were elucidated by TD DFT calculations.
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Affiliation(s)
- Sandip Mondal
- Department of Chemistry, R. K. Mission Residential College, Narendrapur , Kolkata 103, West Bengal, India
| | - Sachinath Bera
- Department of Chemistry, R. K. Mission Residential College, Narendrapur , Kolkata 103, West Bengal, India
| | - Suvendu Maity
- Department of Chemistry, R. K. Mission Residential College, Narendrapur , Kolkata 103, West Bengal, India
| | - Prasanta Ghosh
- Department of Chemistry, R. K. Mission Residential College, Narendrapur , Kolkata 103, West Bengal, India
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71
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Del Pozo S, Vera S, Oiarbide M, Palomo C. Catalytic Asymmetric Synthesis of Quaternary Barbituric Acids. J Am Chem Soc 2017; 139:15308-15311. [PMID: 29023111 DOI: 10.1021/jacs.7b09124] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The catalytic asymmetric α-functionalization of prochiral barbituric acids, a subtype of pseudosymmetric 1,3-diamides, to yield the corresponding 5,5-disubstituted (quaternary) derivatives remains essentially unsolved. In this study 2-alkylthio-4,6-dioxopirimidines are designed as key 1,3-diamide surrogates that perform exceedingly in amine-squaramide catalyzed C-C bond forming reactions with vinyl ketones or Morita-Baylis-Hillmann-type allyl bromides as electrophiles. Mild acid hydrolysis of adducts affords barbituric acid derivatives with an in-ring quaternary carbon in unprecedented enantioselectivity, offering valuable materials for biological evaluations.
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Affiliation(s)
- Sandra Del Pozo
- Departamento de Química Orgánica I, Universidad del País Vasco , Manuel de Lardizabal 3, 2018 San Sebastián, Spain
| | - Silvia Vera
- Departamento de Química Orgánica I, Universidad del País Vasco , Manuel de Lardizabal 3, 2018 San Sebastián, Spain
| | - Mikel Oiarbide
- Departamento de Química Orgánica I, Universidad del País Vasco , Manuel de Lardizabal 3, 2018 San Sebastián, Spain
| | - Claudio Palomo
- Departamento de Química Orgánica I, Universidad del País Vasco , Manuel de Lardizabal 3, 2018 San Sebastián, Spain
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72
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Leng HJ, Li QZ, Zeng R, Dai QS, Zhu HP, Liu Y, Huang W, Han B, Li JL. Asymmetric Construction of Spiropyrazolone Skeletons via
Amine-Catalyzed [3+3] Annulation. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701035] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Hai-Jun Leng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province; Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 People's Republic of China
| | - Qing-Zhu Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province; Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 People's Republic of China
| | - Rong Zeng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province; Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 People's Republic of China
| | - Qing-Song Dai
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province; Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 People's Republic of China
| | - Hong-Ping Zhu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province; Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 People's Republic of China
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 People's Republic of China
| | - Yue Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province; Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 People's Republic of China
| | - Wei Huang
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 People's Republic of China
| | - Bo Han
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 People's Republic of China
| | - Jun-Long Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province; Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 People's Republic of China
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73
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Liu C, Liu YK. Asymmetric Organocatalytic One-Pot, Two-Step Sequential Process to Synthesize Chiral Acetal-Containing Polycyclic Derivatives from Cyclic Hemiacetals and Enones. J Org Chem 2017; 82:10450-10460. [PMID: 28914542 DOI: 10.1021/acs.joc.7b01915] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We have developed an efficient one-pot, two-step sequential process to synthesize biologically and synthetically important chiral acetal-containing polycyclic derivatives. This novel protocol had been proved to proceed via Michael-lactolization-oxocarbenium ion ring-closing sequence, which was initiated by a key reactive enamine intermediate and interrupted the previously established reaction pathway of two different enones used in this work, and generated the corresponding cycloadducts with excellent stereoselectivity bearing up to seven continuous stereocenters. Both chiral and racemic starting cyclic hemiacetals worked well in this strategy. The synthetic applications of the obtained polycyclic products have also been demonstrated.
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Affiliation(s)
- Chao Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, China
| | - Yan-Kai Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao 266003, China
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74
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Meninno S, Roselli A, Capobianco A, Overgaard J, Lattanzi A. Diastereodivergent and Enantioselective Access to Spiroepoxides via Organocatalytic Epoxidation of Unsaturated Pyrazolones. Org Lett 2017; 19:5030-5033. [DOI: 10.1021/acs.orglett.7b02189] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Sara Meninno
- Dipartimento
di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy
| | - Angelo Roselli
- Dipartimento
di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy
| | - Amedeo Capobianco
- Dipartimento
di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy
| | - Jacob Overgaard
- Department
of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
| | - Alessandra Lattanzi
- Dipartimento
di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy
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75
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Yang SM, Tsai YL, Reddy GM, Möhlmann L, Lin W. Chemo- and Diastereoselective Michael–Michael-Acetalization Cascade for the Synthesis of 1,3-Indandione-Fused Spiro[4.5]decan Scaffolds. J Org Chem 2017; 82:9182-9190. [DOI: 10.1021/acs.joc.7b01415] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shu-Mei Yang
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, 11677 Taiwan, R.O.C
| | - Yi-Ling Tsai
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, 11677 Taiwan, R.O.C
| | - Ganapuram Madhusudhan Reddy
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, 11677 Taiwan, R.O.C
| | - Lennart Möhlmann
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, 11677 Taiwan, R.O.C
| | - Wenwei Lin
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei, 11677 Taiwan, R.O.C
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76
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Liu XL, Zhang XL, Guo YJ, Meng CH, Xia AB, Xu DQ. Asymmetric Synthesis of Functionalized Nitrophenols via a Copper(II)-Mediated Bromination/Debromination Aromatization Sequence. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700208] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Xue-Li Liu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 P. R. China
| | - Xiao-Long Zhang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 P. R. China
| | - Yan-Jun Guo
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 P. R. China
| | - Chen-Hong Meng
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 P. R. China
| | - Ai-Bao Xia
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 P. R. China
| | - Dan-Qian Xu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; Hangzhou 310014 P. R. China
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77
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Chauhan P, Mahajan S, Kaya U, Peuronen A, Rissanen K, Enders D. Asymmetric Synthesis of Amino-Bis-Pyrazolone Derivatives via an Organocatalytic Mannich Reaction. J Org Chem 2017; 82:7050-7058. [DOI: 10.1021/acs.joc.7b01113] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pankaj Chauhan
- Institute
of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Suruchi Mahajan
- Institute
of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Uğur Kaya
- Institute
of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Anssi Peuronen
- Department
of Chemistry, Nanoscience Center, University of Jyväskylä, 40014 Jyväskylä, Finland
| | - Kari Rissanen
- Department
of Chemistry, Nanoscience Center, University of Jyväskylä, 40014 Jyväskylä, Finland
| | - Dieter Enders
- Institute
of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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78
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Zhang XL, Tang CK, Xia AB, Feng KX, Du XH, Xu DQ. One-Pot Organocatalytic Michael Addition/I2
-Mediated Cyclization Sequence: Metal-Free Synthesis of Spiropyrazolones from 1,3-Diketones and Unsaturated Pyrazolones. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700474] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xiao-Long Zhang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Cheng-Ke Tang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Ai-Bao Xia
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Kai-Xiang Feng
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Xiao-Hua Du
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Dan-Qian Xu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Key Laboratory of Green Pesticides and Cleaner Production Technology of Zhejiang Province; Zhejiang University of Technology; 310014 Hangzhou P. R. China
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79
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Huang X, Liu M, Jasinski JP, Peng B, Zhang W. Recyclable Organocatalysts for a One-Pot Asymmetric Synthesis of 2-Fluorocyclohexanols Bearing Six Contiguous Stereocenters. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700129] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xin Huang
- College of Chemistry and Life Sciences; Zhejiang Normal University; Jinhua 321004 People's Republic of China
| | - Miao Liu
- Department of Chemistry; University of Massachusetts; 100 Morrissey Boulevard Boston, MA 02125 USA
| | - Jerry P. Jasinski
- Department of Chemistry; Keene State College; 229 Main Street Keene, NH 03435 USA
| | - Bo Peng
- College of Chemistry and Life Sciences; Zhejiang Normal University; Jinhua 321004 People's Republic of China
| | - Wei Zhang
- Department of Chemistry; University of Massachusetts; 100 Morrissey Boulevard Boston, MA 02125 USA
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80
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Liu JY, Zhao J, Zhang JL, Xu PF. Quaternary Carbon Center Forming Formal [3 + 3] Cycloaddition Reaction via Bifunctional Catalysis: Asymmetric Synthesis of Spirocyclohexene Pyrazolones. Org Lett 2017; 19:1846-1849. [DOI: 10.1021/acs.orglett.7b00610] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jin-Yu Liu
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jing Zhao
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jia-Lu Zhang
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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81
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One-Pot Two-Step Organocatalytic Asymmetric Synthesis of Spirocyclic Piperidones via Wolff Rearrangement–Amidation–Michael–Hemiaminalization Sequence. Catalysts 2017. [DOI: 10.3390/catal7020046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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82
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Maity R, Gharui C, Sil AK, Pan SC. Organocatalytic Asymmetric Michael/Hemiketalization/Retro-aldol Reaction of α-Nitroketones with Unsaturated Pyrazolones: Synthesis of 3-Acyloxy Pyrazoles. Org Lett 2017; 19:662-665. [DOI: 10.1021/acs.orglett.6b03823] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Rajendra Maity
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
| | - Chandan Gharui
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
| | - Arun K. Sil
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
| | - Subhas Chandra Pan
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
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83
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Wang B, Huang W, Zhou J, Tang X, Chen Y, Peng C, Han B. Drug design based on pentaerythritol tetranitrate reductase: synthesis and antibacterial activity of Pogostone derivatives. Org Biomol Chem 2017; 15:6548-6556. [DOI: 10.1039/c7ob01429e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We performed molecular docking studies of Pogostone with PETNR and analyzed structure–activity relationships, which guided the structure design and the subsequent facile organocatalytic synthesis of Pogostone derivatives.
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Affiliation(s)
- Biao Wang
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Wei Huang
- Ministry of Education Key Laboratory of Standardization of Chinese Medicine
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Jin Zhou
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Xue Tang
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Yang Chen
- Ministry of Education Key Laboratory of Standardization of Chinese Medicine
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Cheng Peng
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Bo Han
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
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84
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Maity R, Pan SC. Enantioselective aminocatalytic synthesis of tetrahydropyrano[2,3-c]pyrazoles via a domino Michael-hemiacetalization reaction with alkylidene pyrazolones. Org Biomol Chem 2017; 15:8032-8036. [DOI: 10.1039/c7ob02170d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enantioselective organocatalytic synthesis of fused tetrahydropyranopyrazole products has been achieved via a domino Michael-hemiacetalization reaction between alkylidene pyrazolones and cyclic ketones/pentanal.
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Affiliation(s)
- Rajendra Maity
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
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85
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Li X, Huang W, Liu YQ, Kang JW, Xia D, He G, Peng C, Han B. Control of Activation Mode To Achieve Diastereodivergence in Asymmetric Syntheses of Chiral Spiropiperidinone Derivatives. J Org Chem 2016; 82:397-406. [PMID: 27936322 DOI: 10.1021/acs.joc.6b02489] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xiang Li
- State Key Laboratory
Breeding Base of Systematic Research, Development and Utilization
of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People’s Republic of China
| | - Wei Huang
- State Key Laboratory
Breeding Base of Systematic Research, Development and Utilization
of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People’s Republic of China
| | - Yan-Qing Liu
- State Key Laboratory
Breeding Base of Systematic Research, Development and Utilization
of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People’s Republic of China
| | - Jing-Wen Kang
- State Key Laboratory
Breeding Base of Systematic Research, Development and Utilization
of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People’s Republic of China
| | - Dan Xia
- State Key Laboratory
Breeding Base of Systematic Research, Development and Utilization
of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People’s Republic of China
| | - Gu He
- State Key Laboratory of Biotherapy, West
China Hospital, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Cheng Peng
- State Key Laboratory
Breeding Base of Systematic Research, Development and Utilization
of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People’s Republic of China
| | - Bo Han
- State Key Laboratory
Breeding Base of Systematic Research, Development and Utilization
of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People’s Republic of China
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86
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Highly stereoselective metal-mediated domino aldol reactions of propiophenone enolates with heteroaromatic, aliphatic, and unsaturated aldehydes. MONATSHEFTE FUR CHEMIE 2016. [DOI: 10.1007/s00706-016-1841-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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87
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Xia AB, Pan GJ, Wu C, Liu XL, Zhang XL, Li ZB, Du XH, Xu DQ. Enantioselective One-Pot Reaction: Organocatalyzed Synthesis of Fully Functionalized Oxabicyclo[2.2.2]octanes with Seven Contiguous Stereocenters. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600292] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ai-Bao Xia
- Catalytic Hydrogenation Research Centre; State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Zhejiang University of Technology; Hangzhou 310014 People's Republic of China
| | - Gong-Jian Pan
- Catalytic Hydrogenation Research Centre; State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Zhejiang University of Technology; Hangzhou 310014 People's Republic of China
| | - Chao Wu
- Catalytic Hydrogenation Research Centre; State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Zhejiang University of Technology; Hangzhou 310014 People's Republic of China
| | - Xue-Li Liu
- Catalytic Hydrogenation Research Centre; State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Zhejiang University of Technology; Hangzhou 310014 People's Republic of China
| | - Xiao-Long Zhang
- Catalytic Hydrogenation Research Centre; State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Zhejiang University of Technology; Hangzhou 310014 People's Republic of China
| | - Zhao-Bo Li
- Catalytic Hydrogenation Research Centre; State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Zhejiang University of Technology; Hangzhou 310014 People's Republic of China
| | - Xiao-Hua Du
- Catalytic Hydrogenation Research Centre; State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Zhejiang University of Technology; Hangzhou 310014 People's Republic of China
| | - Dan-Qian Xu
- Catalytic Hydrogenation Research Centre; State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology; Zhejiang University of Technology; Hangzhou 310014 People's Republic of China
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88
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Zhao HW, Tian T, Pang HL, Li B, Chen XQ, Yang Z, Meng W, Song XQ, Zhao YD, Liu YY. Organocatalytic [3+2] Cycloadditions of Barbiturate-Based Olefins with 3-Isothiocyanato Oxindoles: Highly Diastereoselective and Enantioselective Synthesis of Dispirobarbiturates. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600270] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Hong-Wu Zhao
- College of Life Science and Bio-engineering; Beijing University of Technology; Beijing 100124 People's Republic of China
| | - Ting Tian
- College of Life Science and Bio-engineering; Beijing University of Technology; Beijing 100124 People's Republic of China
| | - Hai-Liang Pang
- College of Life Science and Bio-engineering; Beijing University of Technology; Beijing 100124 People's Republic of China
| | - Bo Li
- College of Life Science and Bio-engineering; Beijing University of Technology; Beijing 100124 People's Republic of China
| | - Xiao-Qin Chen
- College of Life Science and Bio-engineering; Beijing University of Technology; Beijing 100124 People's Republic of China
| | - Zhao Yang
- College of Life Science and Bio-engineering; Beijing University of Technology; Beijing 100124 People's Republic of China
| | - Wei Meng
- College of Life Science and Bio-engineering; Beijing University of Technology; Beijing 100124 People's Republic of China
| | - Xiu-Qing Song
- College of Life Science and Bio-engineering; Beijing University of Technology; Beijing 100124 People's Republic of China
| | - Yu-Di Zhao
- College of Life Science and Bio-engineering; Beijing University of Technology; Beijing 100124 People's Republic of China
| | - Yue-Yang Liu
- College of Life Science and Bio-engineering; Beijing University of Technology; Beijing 100124 People's Republic of China
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89
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Liu H, Liu Y, Yuan C, Wang GP, Zhu SF, Wu Y, Wang B, Sun Z, Xiao Y, Zhou QL, Guo H. Enantioselective Synthesis of Spirobarbiturate-Cyclohexenes through Phosphine-Catalyzed Asymmetric [4 + 2] Annulation of Barbiturate-Derived Alkenes with Allenoates. Org Lett 2016; 18:1302-5. [DOI: 10.1021/acs.orglett.6b00239] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Honglei Liu
- Department
of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Yang Liu
- Department
of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Chunhao Yuan
- Department
of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Guo-Peng Wang
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Shou-Fei Zhu
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Yang Wu
- Department
of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Bo Wang
- Department
of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Zhanhu Sun
- Department
of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Yumei Xiao
- Department
of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Qi-Lin Zhou
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Hongchao Guo
- Department
of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
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90
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He XH, Yang L, Huang W, Zhao Q, Pan XL, Jiang DF, Yang MC, Peng C, Han B. Catalytic cross-benzoin/Michael/acetalization cascade for asymmetric synthesis of trifluoromethylated γ-butyrolactones. RSC Adv 2016. [DOI: 10.1039/c6ra03571j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A sequential NHC-amine catalytic cascade reaction has been developed. This approach incorporates a highly chemoselective intermolecular cross-benzoin reaction and a highly regioselective Michael-acetalization cascade.
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Affiliation(s)
- Xiang-Hong He
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Lei Yang
- Ministry of Education Key Laboratory of Standardization of Chinese Medicine
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Wei Huang
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Qian Zhao
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Xiao-Li Pan
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Dao-Feng Jiang
- Ministry of Education Key Laboratory of Standardization of Chinese Medicine
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Ming-Cheng Yang
- Ministry of Education Key Laboratory of Standardization of Chinese Medicine
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Cheng Peng
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Bo Han
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
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91
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Amireddy M, Chen K. Organocatalytic one-pot asymmetric synthesis of functionalized spiropyrazolones via a Michael-aldol sequential reaction. RSC Adv 2016. [DOI: 10.1039/c6ra13923j] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient organocatalytic method was developed for synthesizing functionalized spiropyrazolone derivatives by using a Michael-aldol consecutive reaction.
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Affiliation(s)
- Mamatha Amireddy
- Department of Chemistry
- National Taiwan Normal University
- Taipei
- Taiwan
| | - Kwunmin Chen
- Department of Chemistry
- National Taiwan Normal University
- Taipei
- Taiwan
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92
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Zhang J, Zhang M, Li Y, Liu S, Miao Z. Diastereoselective synthesis of cyclopentene spiro-rhodanines containing three contiguous stereocenters via phosphine-catalyzed [3 + 2] cycloaddition or one-pot sequential [3 + 2]/[3 + 2] cycloaddition. RSC Adv 2016. [DOI: 10.1039/c6ra23399f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
5-Spiro-cyclopentene-rhodanine derivatives have been synthesized through two different diastereoselective phosphine-catalyzed cascade reactions in excellent diastereoselectivities and good to excellent yields.
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Affiliation(s)
- Jiayong Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Minxuan Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Yuming Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Shang Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Zhiwei Miao
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
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93
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Li JH, Cui ZH, Du DM. Diastereo- and enantioselective construction of cyclohexanone-fused spirospyrazolones containing four consecutive stereocenters through asymmetric sequential reactions. Org Chem Front 2016. [DOI: 10.1039/c6qo00208k] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The diastereo- and enantioselective synthesis of cyclohexanone-fused spirospyrazolones through an asymmetric Michael/Michael/aldol cascade reaction catalyzed by squaramide and diphenylprolinol silyl ether, followed by a sequential oxidation was developed.
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Affiliation(s)
- Jun-Hua Li
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing 100081
- People's Republic of China
| | - Zhi-Hao Cui
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing 100081
- People's Republic of China
| | - Da-Ming Du
- School of Chemical Engineering and Environment
- Beijing Institute of Technology
- Beijing 100081
- People's Republic of China
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94
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Li JH, Du DM. Phosphine-Catalyzed Cascade Reaction of Unsaturated Pyrazolones with Alkyne Derivatives: Efficient Synthesis of Pyrano[2,3-c]pyrazoles and Spiro-cyclopentanone-pyrazolones. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500675] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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95
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Li JH, Feng TF, Du DM. Construction of Spirocyclopropane-Linked Heterocycles Containing Both Pyrazolones and Oxindoles through Michael/Alkylation Cascade Reactions. J Org Chem 2015; 80:11369-77. [DOI: 10.1021/acs.joc.5b01940] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jun-Hua Li
- School of Chemical Engineering
and Environment, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Ting-Fan Feng
- School of Chemical Engineering
and Environment, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Da-Ming Du
- School of Chemical Engineering
and Environment, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
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96
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Amireddy M, Chen K. Organocatalytic synthesis of spirocyclohexane indane-1,3-diones via a chiral squaramide-catalyzed Michael/aldol cascade reaction of γ-nitro ketones and 2-arylideneindane-1,3-diones. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.08.061] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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97
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Organocatalytic Enantioselective Synthesis of Polysubstituted Spirooxindoles using a Tandem Michael-Michael Reaction. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500298] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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98
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99
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Huang X, Pham K, Zhang X, Yi WB, Hyatt JH, Tran AP, Jasinski JP, Zhang W. Recyclable organocatalyst-promoted one-pot Michael/aza-Henry/lactamization reactions for fluorinated 2-piperidinones bearing four stereogenic centres. RSC Adv 2015. [DOI: 10.1039/c5ra15306a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
A highly efficient method for asymmetric synthesis of fluorinated 2-piperidinones bearing four stereogenic centres is introduced.
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Affiliation(s)
- Xin Huang
- Department of Chemistry
- University of Massachusetts Boston
- Boston
- USA
| | - Kenny Pham
- Department of Chemistry
- University of Massachusetts Boston
- Boston
- USA
| | - Xiaofeng Zhang
- Department of Chemistry
- University of Massachusetts Boston
- Boston
- USA
| | - Wen-Bin Yi
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Jeremy H. Hyatt
- Department of Chemistry
- University of Massachusetts Boston
- Boston
- USA
| | - Anthony P. Tran
- Department of Chemistry
- University of Massachusetts Boston
- Boston
- USA
| | | | - Wei Zhang
- Department of Chemistry
- University of Massachusetts Boston
- Boston
- USA
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100
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Chauhan P, Mahajan S, Enders D. Asymmetric synthesis of pyrazoles and pyrazolones employing the reactivity of pyrazolin-5-one derivatives. Chem Commun (Camb) 2015; 51:12890-907. [DOI: 10.1039/c5cc04930j] [Citation(s) in RCA: 203] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The various catalytic asymmetric strategies employing organo- and metal-catalysts utilized pyrazolin-5-one derivatives for the synthesis of potentially bioactive enantiopure pyrazoles and pyrazolones are presented.
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Affiliation(s)
- Pankaj Chauhan
- Institute of Organic Chemistry
- RWTH Aachen University
- 52074 Aachen
- Germany
| | - Suruchi Mahajan
- Institute of Organic Chemistry
- RWTH Aachen University
- 52074 Aachen
- Germany
| | - Dieter Enders
- Institute of Organic Chemistry
- RWTH Aachen University
- 52074 Aachen
- Germany
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