1
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Wang L, Lv J, Zhang Y, Yang D. Asymmetric magnesium catalysis for important chiral scaffold synthesis. Org Biomol Chem 2024; 22:4778-4800. [PMID: 38809153 DOI: 10.1039/d4ob00521j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Magnesium catalysts are widely used in catalytic asymmetric reactions, and a series of catalytic strategies have been developed in recent years. Herein, in this review, we have tried to summarize asymmetric magnesium catalysis for the synthesis of important chiral scaffolds. Several important optically active motifs that are present in classic chiral ligands or natural products synthesized by Mg(II) catalytic methods are briefly discussed. Moreover, the representative mechanisms for different magnesium catalytic strategies, including in situ generated magnesium catalysts, are also shown in relation to synthetic routes for obtaining these important chiral scaffolds.
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Affiliation(s)
- Linqing Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, China.
| | - Jiaming Lv
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, China.
| | - Yongshuo Zhang
- Scientific Research and Innovation Expert Studio of China Inspection and Certification Group Liaoning Co., Ltd, Dalian, 116039, China
| | - Dongxu Yang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou University, Lanzhou, 730000, China.
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2
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Qin H, Wei G, Lou Y, Zheng X, Bao M, Zhang Y, Huang P. K 2S 2O 8-mediated direct C-H heteroarylation/hydroxylation of indolin-2-ones with quinoxalin-2(1 H)-ones. Org Biomol Chem 2024; 22:279-283. [PMID: 38053489 DOI: 10.1039/d3ob01792c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Herein, a K2S2O8-mediated direct heteroarylation and hydroxylation reaction between quinoxalin-2(1H)-ones with a C(sp2)-H bond and indolin-2-ones with a C(sp3)-H bond via an oxidative cross-coupling reaction has been reported. We have successfully established a feasible and concise reaction system that represents the first example of free-radical-promoted heteroarylation and hydroxylation reaction on the C-3 position of oxindole. A series of 3-substituted 3-hydroxyoxindoles are obtained in 0-83% yield using this methodology.
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Affiliation(s)
- Hui Qin
- Center for Clinical Pharmacy, Cancer Center, Department of Pharmacy, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China.
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou, 310014, China
| | - Guoliang Wei
- Center for Clinical Pharmacy, Cancer Center, Department of Pharmacy, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China.
| | - Yutao Lou
- College of pharmacy, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Xiaowei Zheng
- Center for Clinical Pharmacy, Cancer Center, Department of Pharmacy, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China.
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou, 310014, China
| | - Meihua Bao
- Academician Workstation, School of Stomatology, Changsha Medical University, Changsha, China
| | - Yiwen Zhang
- Center for Clinical Pharmacy, Cancer Center, Department of Pharmacy, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China.
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou, 310014, China
| | - Ping Huang
- Center for Clinical Pharmacy, Cancer Center, Department of Pharmacy, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China.
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou, 310014, China
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3
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Sang X, Mo Y, Li S, Liu X, Cao W, Feng X. Bimetallic tandem catalysis-enabled enantioselective cycloisomerization/carbonyl-ene reaction for construction of 5-oxazoylmethyl α-silyl alcohol. Chem Sci 2023; 14:8315-8320. [PMID: 37564412 PMCID: PMC10411629 DOI: 10.1039/d3sc01048a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 07/06/2023] [Indexed: 08/12/2023] Open
Abstract
A bimetallic tandem catalysis-enabled enantioselective cycloisomerization/carbonyl-ene reaction was developed. The reaction proceeded well with a broad range of N-propargylamides and acylsilanes, affording the target chiral 5-oxazoylmethyl α-silyl alcohols in up to 95% yield and 99% ee under mild conditions. Importantly, this facile protocol was available for the late-stage modification of several bioactive molecules. Based on the mechanistic study and control experiments, a possible catalytic cycle and transition state are proposed to elucidate the reaction process and enantioinduction.
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Affiliation(s)
- Xinpeng Sang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Yuhao Mo
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Shiya Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Weidi Cao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 P. R. China
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4
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Wu S, Song W, Zhu R, Hu J, Zhao L, Li Z, Yu X, Xia C, Zhao J. Catalyst-Free α-Alkylation-α-Hydroxylation of Oxindole with Alcohols. J Org Chem 2022; 87:5464-5471. [PMID: 35389661 DOI: 10.1021/acs.joc.1c02185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
3-Alkyl-3-hydroxyoxindoles, a subclass of oxindole products, have antioxidant, neuroprotective, anticancer, and anti-HIV activities. In this study, a green and economical protocol for the synthesis of 3-alkyl-3-hydroxyoxindoles is developed for the first time via α-alkylation-α-hydroxylation of oxindole with benzyl alcohols without using any transition-metal catalysts in yields of 29-93%.
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Affiliation(s)
- Siwei Wu
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design, School of Pharmacy, and State Key Laboratory of Bioengineering Reactors, East China University of Science & Technology, Shanghai 200237, People's Republic of China
| | - Wei Song
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design, School of Pharmacy, and State Key Laboratory of Bioengineering Reactors, East China University of Science & Technology, Shanghai 200237, People's Republic of China
| | - Runyu Zhu
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design, School of Pharmacy, and State Key Laboratory of Bioengineering Reactors, East China University of Science & Technology, Shanghai 200237, People's Republic of China
| | - Jingwen Hu
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design, School of Pharmacy, and State Key Laboratory of Bioengineering Reactors, East China University of Science & Technology, Shanghai 200237, People's Republic of China
| | - Lin Zhao
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design, School of Pharmacy, and State Key Laboratory of Bioengineering Reactors, East China University of Science & Technology, Shanghai 200237, People's Republic of China
| | - Zheyao Li
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design, School of Pharmacy, and State Key Laboratory of Bioengineering Reactors, East China University of Science & Technology, Shanghai 200237, People's Republic of China
| | - Xinhong Yu
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design, School of Pharmacy, and State Key Laboratory of Bioengineering Reactors, East China University of Science & Technology, Shanghai 200237, People's Republic of China
| | - Chengcai Xia
- Institute of Pharmacology, School of Pharmaceutical Sciences, Taishan Medical University, Taian, Shandong 271016, People's Republic of China
| | - Jianhong Zhao
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design, School of Pharmacy, and State Key Laboratory of Bioengineering Reactors, East China University of Science & Technology, Shanghai 200237, People's Republic of China
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5
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Zhang F, Sang X, Zhou Y, Cao W, Feng X. Enantioselective Synthesis of Azetidines through [3 + 1]-Cycloaddition of Donor-Acceptor Aziridines with Isocyanides. Org Lett 2022; 24:1513-1517. [PMID: 35147442 DOI: 10.1021/acs.orglett.2c00190] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The enantioselective [3 + 1]-cycloaddition of racemic donor-acceptor (D-A) aziridines with isocyanides was first realized under mild reaction conditions using a chiral N,N'-dioxide/MgII complex as catalyst, providing a facile route to enantioenriched exo-imido azetidines with good to excellent yield (up to 99%) and enantioselectivity (up to 94% ee). An obvious chiral amplification effect was observed in this system, and an explanation was elucidated based on the experimental investigation and X-ray crystal structure of the enantiomerically pure catalyst.
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Affiliation(s)
- Fengcai Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xinpeng Sang
- 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
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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6
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Abstract
α-Diazocarbonyl compounds serve as nucleophiles, dipoles, carbene precursors, and rare electrophiles, enabling a vast array of organic transformations under the influence of metal catalysts. Among them, rearrangement processes are attractive and provide straightforward and efficient accesses to one-carbon extension adducts or heteroatom-containing molecules. The reactions occur upon the release of dinitrogen after nucleophilic addition or before ylide formation. Although significant progress has been made for these two types of rearrangement reactions, the issue of enantiocontrol is challenging because the final optically enriched products are generated via multistep transformations and the inherent spacial arrangement of the intermediates has more or less influence on the regio- and enantioselectivity.In this Account, we collected several rearrangements of α-diazocarbonyl compounds, showcasing the efficient catalysts and tailored strategies for tackling enantioselective varieties of these two types of rearrangement reactions. Our research group initiated the catalytic asymmetric reactions of α-diazocarbonyl compounds during the development of chiral Feng N,N'-dioxide-metal complex catalysts and others. As a kind of useful chiral Lewis acid catalyst chiral N,N'-dioxide-metal complexes are favorable for the activation of various carbonyl compounds, accelerating the diastereo- and enantioselective nucleophilic addition of α-diazoesters and the sequential rearrangements in either an intermolecular or intramolecular manner. Aldehydes, acyclic and cyclic ketone derivatives, and α,β-unsaturated ketones could participate in efficient asymmetric homologation reactions, and an obvious ligand-acceleration effect is observed in these processes. For example, the Roskamp-Feng reaction of aldehydes gives optically active β-ketoesters through a H-shift, overwhelming the aryl group shift or oxygen attack. The shift preference and enantiocontrol in the homologation of acyclic and cyclic ketone derivatives could be under excellent control of the chiral catalysts. An unusual electrophilic α-amination of aryl/alkyl ketones and even a complicated homologation/dyotropic rearrangement/interconversion/[3 + 2] cycloaddition cascade used to construct dimeric polycyclic compounds were discovered as a result of the selection of chiral ligands and additives. On the basis of the understanding of the interaction of the functional group with N,N'-dioxide-metal complexes in catalysis and the key enantio-determining issues in ylide-based rearrangements, we designed new α-diazocarbonyl compounds by introducing a pyrazole-1-carboxyl group as the acceptor unit, which could benefit the formation of both carbenoid species and the chiral catalyst-bound ylides to deliver stereoselectivity. Taking advantage of Ni(II) or Co(II) complexes of Feng N,N'-dioxide ligands, we realized several kinds of enantioselective [2,3]-sigmatropic rearrangements, such as the Doyle-Kirmse reaction with allylic sulfides or selenides, [2,3]-Stevens rearrangements of vinyl-substituted α-diazo pyrazoleamides with thioacetates, Sommelet-Hauser rearrangements of aryl-substituted α-diazo pyrazoleamides with thioamides, and thio-Claisen rearrangements of 2-thio-indoles as well. Moreover, this strategy was shown to be applicable to highly γ-selective and enantioselective insertion into N-H bonds of secondary amines with vinyl-substituted α-diazo pyrazoleamides.
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Affiliation(s)
- Shunxi Dong
- 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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8
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Wang J, Osman S, Lu X, Chen J, Xia XD. Visible light mediated aerobic oxidative hydroxylation of 2-oxindole-3-carboxylate esters: an alternative approach to 3-hydroxy-2-oxindoles. HETEROCYCL COMMUN 2020. [DOI: 10.1515/hc-2019-0114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractA convenient aerobic oxidative hydroxylation of 3-substituted oxindoles under mild reaction conditions is described herein. This process was accomplished by the activation of molecular oxygen in the air in the presence of a photocatalyst under the irradiation of visible light. The desired product was delivered in up to 89% yield without the addition of base or stoichiometric oxidant.
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Affiliation(s)
- Jinge Wang
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, College of Life Sciences, Tarim University, Alar, Xinjiang843300, P. R. China
| | - Siyitemer Osman
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, College of Life Sciences, Tarim University, Alar, Xinjiang843300, P. R. China
| | - Xinjiang Lu
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, College of Life Sciences, Tarim University, Alar, Xinjiang843300, P. R. China
| | - Junyi Chen
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, College of Life Sciences, Tarim University, Alar, Xinjiang843300, P. R. China
| | - Xu-Dong Xia
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, College of Life Sciences, Tarim University, Alar, Xinjiang843300, P. R. China
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9
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Hou L, Kang T, Yang L, Cao W, Feng X. Enantioselective Imino-Ene Reaction of N-Sulfonyl Ketimines with Silyl Enol Ethers: Access to Chiral Benzosultams. Org Lett 2020; 22:1390-1395. [PMID: 31990193 DOI: 10.1021/acs.orglett.0c00004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A highly efficient asymmetric imino-ene reaction of cyclic ketimines with silyl enol ethers was developed. Various chiral benzosultam derivatives were obtained in excellent yields (up to 99%), enantioselectivities (up to 99% ee), and diastereoselectivities (up to >19:1 dr) by utilizing a Ni(BF4)2·6H2O/N,N'-dioxide complex as the catalyst. A possible transition state model was proposed to explain the stereoinduction. Furthermore, the synthetic utility of the protocol provided quick access to optically pure HIV-1 inhibitor.
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Affiliation(s)
- Liuzhen Hou
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Tengfei Kang
- 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
| | - Weidi Cao
- 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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10
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Wang J, Zhang Q, Li Y, Liu X, Li X, Cheng JP. Bi(OAc)3/chiral phosphoric acid catalyzed enantioselective allylation of isatins. Chem Commun (Camb) 2020; 56:261-264. [DOI: 10.1039/c9cc07944k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Herein, we disclosed an efficient protocol for the construction of chiral 3-allyl-3-hydroxyoxindoles via the enantioselective allylation reaction of isatins and allylboronates catalyzed by a simple binary acid Bi(OAc)3/CPA system under mild conditions.
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Affiliation(s)
- Jie Wang
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Qingxia Zhang
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Yao Li
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Xiangshuai Liu
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Xin Li
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Jin-Pei Cheng
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
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11
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Niu L, Pi R, Dong S, Liu S. Aromatic C–H Bond Functionalized via Zwitterion Intermediates to Construct Bioxindole Containing Continuous Quaternary Carbons. J Org Chem 2019; 84:15192-15200. [DOI: 10.1021/acs.joc.9b02228] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Li Niu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Rou Pi
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Suzhen Dong
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Shunying Liu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
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12
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Li X, Xiong Q, Guan M, Dong S, Liu X, Feng X. Divergent Synthesis of Enantioenriched β-Functional Amines via Desymmetrization of meso-Aziridines with Isocyanides. Org Lett 2019; 21:6096-6101. [DOI: 10.1021/acs.orglett.9b02242] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiangqiang Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Qian Xiong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Mingming Guan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Shunxi Dong
- 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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13
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14
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Liu W, Zhou P, Lang J, Dong S, Liu X, Feng X. A nickel(ii)-catalyzed asymmetric intramolecular Alder-ene reaction of 1,7-dienes. Chem Commun (Camb) 2019; 55:4479-4482. [PMID: 30916688 DOI: 10.1039/c9cc01521c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A highly diastereo- and enantioselective intramolecular Alder-ene reaction with an alkene as the enophile has been developed by using a chiral N,N'-dioxide/nickel(ii) complex as the catalyst. This protocol provides a facile route towards the synthesis of diverse 3,4-disubstituted chroman, tetrahydroquinoline, piperidine and thiochroman derivatives in high yields with good to excellent diastereo- and enantioselectivities.
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Affiliation(s)
- Wen Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China.
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15
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16
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Zhang B, Cheng L, Duan B, Tang W, Yuan Y, Ding Y, Hu A. Gadolinium complexes of diethylenetriamine-N-oxide pentaacetic acid-bisamide: a new class of highly stable MRI contrast agents with a hydration number of 3. Dalton Trans 2019; 48:1693-1699. [DOI: 10.1039/c8dt04478c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diethylenetriamine-N-oxide pentaacetic acid-bisamide-based Gd(iii) complexes with 3 coordinated water molecules have been synthesized to achieve high stability and over three times of the relaxivities of commercial MRI contrast agents.
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Affiliation(s)
- BeiBei Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Likun Cheng
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Bing Duan
- The State Key Laboratory of Bioreactor Engineering East China University of Science and Technology
- Shanghai
- China
| | - Weijun Tang
- Department of Radiology
- Huashan Hospital Affiliated to Fudan University
- Shanghai
- China
| | - Yuan Yuan
- The State Key Laboratory of Bioreactor Engineering East China University of Science and Technology
- Shanghai
- China
| | - Yun Ding
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Aiguo Hu
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
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17
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Heravi MM, Zadsirjan V, Masoumi B, Heydari M. Organometal-catalyzed asymmetric Friedel-Crafts reactions. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2018.10.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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18
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Yu H, Dong S, Yao Q, Chen L, Zhang D, Liu X, Feng X. Enantioselective [2+2] Photocycloaddition Reactions of Enones and Olefins with Visible Light Mediated by
N
,
N
′‐Dioxide–Metal Complexes. Chemistry 2018; 24:19361-19367. [DOI: 10.1002/chem.201804600] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 10/10/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Han Yu
- Key Laboratory of Green Chemistry & Technology, Ministry of EducationCollege of ChemistrySichuan University Chengdu 610064 P. R. China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology, Ministry of EducationCollege of ChemistrySichuan University Chengdu 610064 P. R. China
| | - Qian Yao
- Key Laboratory of Green Chemistry & Technology, Ministry of EducationCollege of ChemistrySichuan University Chengdu 610064 P. R. China
| | - Long Chen
- Key Laboratory of Green Chemistry & Technology, Ministry of EducationCollege of ChemistrySichuan University Chengdu 610064 P. R. China
| | - Dong Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of EducationCollege of ChemistrySichuan University Chengdu 610064 P. R. China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of EducationCollege of ChemistrySichuan University Chengdu 610064 P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of EducationCollege of ChemistrySichuan University Chengdu 610064 P. R. China
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19
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Zhang LL, Zhang JW, Xiang SH, Guo Z, Tan B. Stereoselective Construction of Complex Spirooxindoles via Bisthiourea Catalyzed Three-Component Reactions. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800368] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Lin-Lin Zhang
- College of Material Science & Engineering; Taiyuan University of Technology; Taiyuan Shanxi 030024 China
- Department of Chemistry; South University of Science and Technology of China; Shenzhen Guangdong 518055 China
| | - Ji-Wei Zhang
- Department of Chemistry; South University of Science and Technology of China; Shenzhen Guangdong 518055 China
| | - Shao-Hua Xiang
- Academy for Advanced Interdisciplinary Studies; Southern University of Science and Technology; Shenzhen Guangdong 518055 China
| | - Zhen Guo
- College of Material Science & Engineering; Taiyuan University of Technology; Taiyuan Shanxi 030024 China
| | - Bin Tan
- Department of Chemistry; South University of Science and Technology of China; Shenzhen Guangdong 518055 China
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20
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Wang CC, Huang J, Li XH, Kramer S, Lin GQ, Sun XW. Asymmetric Organocatalytic [4 + 1] Annulations: Enantioselective Construction of Multifunctionalized Spirocyclopentane Oxindoles Bearing α,α-Disubstituted α-Amino-β-keto Esters. Org Lett 2018; 20:2888-2891. [DOI: 10.1021/acs.orglett.8b00927] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Chuan-Chuan Wang
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Jian Huang
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Xin-Hao Li
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Søren Kramer
- Department of Chemistry, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Guo-Qiang Lin
- Department of Chemistry, Fudan University, Shanghai 200433, China
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xing-Wen Sun
- Department of Chemistry, Fudan University, Shanghai 200433, China
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21
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Zhang J, Fu K, Lin L, Lu Y, Liu X, Feng X. Efficient Catalytic Enantioselective Hydroxyamination of α-Aryl-α-Cyanoacetates with 2-Nitrosopyridines. Chemistry 2018; 24:4289-4293. [PMID: 29457662 DOI: 10.1002/chem.201800592] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Indexed: 12/24/2022]
Abstract
The highly enantioselective totally N-selective hydroxyamination reaction of α-aryl-α-cyanoacetates with 2-nitrosopyridines was realized by using a chiral N,N'-dioxide/Mg(OTf)2 complex as catalyst, which enriches the nitroso chemistry. A variety of 2-cyano-2-[hydroxyl(pyrydin-2-yl)amino]acetates with quaternary stereocenters and potential antibacterial activities were obtained in excellent yields with good to excellent ee values under as low as 0.05 mol % catalyst loading. The products could be easily transformed to useful α-amino amides and 1,2-diamines. Besides, a possible transition state model was proposed to elucidate the origin of the chirality induction.
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Affiliation(s)
- Jingchuan Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Kai Fu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Yan Lu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
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22
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Liu W, Cao W, Hu H, Lin L, Feng X. Dynamic kinetic asymmetric transformations of β-halo-α-keto esters byN,N′-dioxide/Ni(ii)-catalyzed carbonyl-ene reaction. Chem Commun (Camb) 2018; 54:8901-8904. [DOI: 10.1039/c8cc04993a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An effective dynamic kinetic asymmetric transformation of racemic β-halo-α-keto esters through carbonyl-ene reaction was realised.
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Affiliation(s)
- Wen Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education, College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Weidi Cao
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education, College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Haipeng Hu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education, College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education, College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education, College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
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23
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Zhang H, Yao Q, Cao W, Ge S, Xu J, Liu X, Feng X. Catalytic enantioselective ene-type reactions of vinylogous hydrazone: construction of α-methylene-γ-butyrolactone derivatives. Chem Commun (Camb) 2018; 54:12511-12514. [DOI: 10.1039/c8cc07567k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Catalytic asymmetric ene-type reactions of vinylogous hydrazone with isatins, α-ketoester, imines and aldehydes were accomplished which gave an environmentally friendly, straightforward approach to afford bioactive chiral α-methylene-γ-butyrolactone derivatives.
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Affiliation(s)
- Hang Zhang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Qian Yao
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Weidi Cao
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Shulin Ge
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Jinxiu Xu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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24
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Jayakumar S, Louven K, Strohmann C, Kumar K. A Tunable and Enantioselective Hetero-Diels-Alder Reaction Provides Access to Distinct Piperidinoyl Spirooxindoles. Angew Chem Int Ed Engl 2017; 56:15945-15949. [DOI: 10.1002/anie.201708355] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/27/2017] [Indexed: 01/19/2023]
Affiliation(s)
- Samydurai Jayakumar
- Max-Planck-Institut für Molekulare Physiologie; Abteilung Chemische Biologie; Otto-Hahn-Straße 11 44227 Dortmund Germany
| | - Kathrin Louven
- Fakultät Chemie und Chemische Biologie; Technische Universität Dortmund; Otto-Hahn Str. 6 44227- Dortmund Germany
| | - Carsten Strohmann
- Fakultät Chemie und Chemische Biologie; Technische Universität Dortmund; Otto-Hahn Str. 6 44227- Dortmund Germany
| | - Kamal Kumar
- Max-Planck-Institut für Molekulare Physiologie; Abteilung Chemische Biologie; Otto-Hahn-Straße 11 44227 Dortmund Germany
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25
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Jayakumar S, Louven K, Strohmann C, Kumar K. A Tunable and Enantioselective Hetero-Diels-Alder Reaction Provides Access to Distinct Piperidinoyl Spirooxindoles. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708355] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Samydurai Jayakumar
- Max-Planck-Institut für Molekulare Physiologie; Abteilung Chemische Biologie; Otto-Hahn-Straße 11 44227 Dortmund Germany
| | - Kathrin Louven
- Fakultät Chemie und Chemische Biologie; Technische Universität Dortmund; Otto-Hahn Str. 6 44227- Dortmund Germany
| | - Carsten Strohmann
- Fakultät Chemie und Chemische Biologie; Technische Universität Dortmund; Otto-Hahn Str. 6 44227- Dortmund Germany
| | - Kamal Kumar
- Max-Planck-Institut für Molekulare Physiologie; Abteilung Chemische Biologie; Otto-Hahn-Straße 11 44227 Dortmund Germany
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26
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Tang Q, Lin L, Ji J, Hu H, Liu X, Feng X. Catalytic Asymmetric Direct Vinylogous Aldol Reaction of Isatins with β,γ-Unsaturated Butenolides. Chemistry 2017; 23:16447-16451. [DOI: 10.1002/chem.201704100] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 09/24/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Qiong Tang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 P. R. China
| | - Lili Lin
- Key Laboratory of Green Chemistry and Technology, Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 P. R. China
| | - Jie Ji
- Key Laboratory of Green Chemistry and Technology, Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 P. R. China
| | - Haipeng Hu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 P. R. China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry and Technology, Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 P. R. China
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27
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Pathan MY, Chavan SS, Shaikh TMY, Thorat SH, Gonnade RG, Mulla SAR. Facile One-Pot Multi-Component Synthesis of Spirooxindoles and 3, 3’-Disubstituted Oxindoles via sp3
C-H Activation/Functionalization of Azaarenes. ChemistrySelect 2017. [DOI: 10.1002/slct.201701507] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Mohsinkhan Y. Pathan
- Chemical Engineering and Process Development Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road, Pashan Pune - 411008 India
| | - Santosh S. Chavan
- Chemical Engineering and Process Development Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road, Pashan Pune - 411008 India
| | - Taufeekaslam M. Y. Shaikh
- Chemical Engineering and Process Development Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road, Pashan Pune - 411008 India
| | - Shridhar H. Thorat
- Physical and Materials Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road, Pashan Pune - 411008 India
| | - Rajesh G. Gonnade
- Physical and Materials Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road, Pashan Pune - 411008 India
| | - Shafeek A. R. Mulla
- Chemical Engineering and Process Development Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road, Pashan Pune - 411008 India
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28
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Abstract
This review updates the major progress in the field of enantioselective transformations promoted by chiral magnesium catalysts, covering the literature since 2007, illustrating the power of these green catalysts to promote many types of reactions.
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29
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Luo W, Yuan X, Lin L, Zhou P, Liu X, Feng X. A N, N'-dioxide/Mg(OTf) 2 complex catalyzed enantioselective α-addition of isocyanides to alkylidene malonates. Chem Sci 2016; 7:4736-4740. [PMID: 30155124 PMCID: PMC6016448 DOI: 10.1039/c6sc00689b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 04/12/2016] [Indexed: 11/21/2022] Open
Abstract
A simple and efficient catalytic asymmetric α-addition of isocyanides to alkylidene malonates was realized using a chiral N,N′-dioxide/MgII catalyst. A variety of 2-alkyl-5-aminoxazoles were obtained in up to 99% yield and 96% ee, and could be converted to imides and dipeptides.
A highly efficient catalytic asymmetric α-addition of isocyanides to alkylidene malonates was accomplished. The process was based on the utilization of a chiral N,N′-dioxide/MgII catalyst, delivering a variety of 2-alkyl-5-aminooxazoles in up to 99% yield and 96% ee under mild reaction conditions. Besides, a chiral imide and dipeptide could be easily obtained by ring-opening of the oxazole product, both of which are important structural motifs for many biologically active compounds. Based on the experimental investigations and previous work, a possible transition state model was proposed.
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Affiliation(s)
- Weiwei Luo
- Key Laboratory of Green Chemistry & Technology , Ministry of Education , College of Chemistry , Sichuan University , Chengdu 610064 , China . ; ; ; Tel: +86 28 85418249
| | - Xiao Yuan
- Key Laboratory of Green Chemistry & Technology , Ministry of Education , College of Chemistry , Sichuan University , Chengdu 610064 , China . ; ; ; Tel: +86 28 85418249
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology , Ministry of Education , College of Chemistry , Sichuan University , Chengdu 610064 , China . ; ; ; Tel: +86 28 85418249
| | - Pengfei Zhou
- Key Laboratory of Green Chemistry & Technology , Ministry of Education , College of Chemistry , Sichuan University , Chengdu 610064 , China . ; ; ; Tel: +86 28 85418249
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology , Ministry of Education , College of Chemistry , Sichuan University , Chengdu 610064 , China . ; ; ; Tel: +86 28 85418249
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology , Ministry of Education , College of Chemistry , Sichuan University , Chengdu 610064 , China . ; ; ; Tel: +86 28 85418249.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin , China
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30
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Cheng D, Ling F, Zheng C, Ma C. Tuning of Copper-Catalyzed Multicomponent Reactions toward 3-Functionalized Oxindoles. Org Lett 2016; 18:2435-8. [DOI: 10.1021/acs.orglett.6b00964] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dong Cheng
- Department
of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
- School
of Chemistry and Materials Engineering, Chaohu University, Chaohu 238000, China
| | - Fei Ling
- Department
of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Chenguang Zheng
- Department
of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Cheng Ma
- Department
of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
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31
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Cao ZY, Zhao YL, Zhou J. Sequential Au(i)/chiral tertiary amine catalysis: a tandem C–H functionalization of anisoles or a thiophene/asymmetric Michael addition sequence to quaternary oxindoles. Chem Commun (Camb) 2016; 52:2537-40. [DOI: 10.1039/c5cc10096h] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We report an unprecedented sequential Au(i)/bifunctional tertiary amine catalysis, which enables a tandem C–H functionalization of weak nucleophiles (anisoles or thiophenes) and asymmetric Michael addition for the highly enantioselective synthesis of quaternary oxindoles.
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Affiliation(s)
- Zhong-Yan Cao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- 3663N
- Shanghai 200062
| | - Yu-Lei Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- 3663N
- Shanghai 200062
| | - Jian Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- 3663N
- Shanghai 200062
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32
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Cao ZY, Jiang JS, Zhou J. A highly enantioselective Hg(ii)-catalyzed Sakurai–Hosomi reaction of isatins with allyltrimethylsilanes. Org Biomol Chem 2016; 14:5500-4. [DOI: 10.1039/c5ob02582f] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A chiral complex derived from (S)-difluorophos and Hg(OTf)2 is identified as a powerful catalyst for the Sakurai–Hosomi reaction of isatins with allyltrimethylsilane, allowing the facile synthesis of valuable building blocks 3-allyl-3-hydroxyoxindoles in up to 97% ee, with only 0.5–1.0 mol% of catalyst loading.
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Affiliation(s)
- Zhong-Yan Cao
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
| | | | - Jian Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
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33
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Jiang Y, Fu JH, Li TZ, Sha F, Wu XY. Enantioselective direct vinylogous aldol-cyclization cascade reaction between β,γ-unsaturated amides and o-quinones. Org Biomol Chem 2016; 14:6435-41. [DOI: 10.1039/c6ob00893c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first enantioselective vinylogous reaction with 1,2-dikeones as aldol donors has been developed to provide chiral spirocyclic dihydropyranones.
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Affiliation(s)
- Yu Jiang
- A Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Jun-Hao Fu
- A Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Tian-Ze Li
- A Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Feng Sha
- A Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Xin-Yan Wu
- A Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
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34
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Kumari P, Nandi S, Kumar G, Khan NH, Kureshy RI, Abdi SHR, Suresh E, Bajaj HC. Construction of highly enantioselective spiro-oxindole derivatives with fused chromene via organocascade catalysis. RSC Adv 2016. [DOI: 10.1039/c6ra06812j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A first highly enantioselective addition of naphthols and sesamol to indolylidene cyanoacetate derived from isatins was carried out in the presence of bi-functional quinine thiourea as organocatalyst.
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Affiliation(s)
- Prathibha Kumari
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Bhavnagar
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Sekhar Nandi
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Bhavnagar
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Gaurav Kumar
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Bhavnagar
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Noorul H. Khan
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Bhavnagar
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Rukhsana I. Kureshy
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Bhavnagar
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Sayed H. R. Abdi
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Bhavnagar
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - E. Suresh
- Academy of Scientific & Innovative Research (AcSIR)
- India
- Analytical Division and Centralized Instrument Facility
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Bhavnagar
| | - Hari C. Bajaj
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Bhavnagar
- India
- Academy of Scientific & Innovative Research (AcSIR)
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35
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Xiong R, Cheng L, Tian Y, Tang W, Xu K, Yuan Y, Hu A. Hyperbranched polyethylenimine based polyamine-N-oxide-carboxylate chelates of gadolinium for high relaxivity MRI contrast agents. RSC Adv 2016. [DOI: 10.1039/c6ra03589b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Polydentate amine-N-oxide carboxylates were used as ligands for the formation of Gd(iii) complexes with high relaxivity as MRI contrast agents. Cytotoxicity assays revealed good cytocompatibility of these complexes for clinical applications.
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Affiliation(s)
- Rulin Xiong
- Shanghai Key Laboratory of Advanced Polymeric Materials
- East China University of Science and Technology
- Shanghai 20237
- China
| | - Likun Cheng
- Shanghai Key Laboratory of Advanced Polymeric Materials
- East China University of Science and Technology
- Shanghai 20237
- China
| | - Yu Tian
- The State Key Laboratory of Bioreactor Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Weijun Tang
- Department of Radiology
- Huashan Hospital Affiliated to Fudan University
- Shanghai 200237
- China
| | - Kehan Xu
- Shanghai Key Laboratory of Advanced Polymeric Materials
- East China University of Science and Technology
- Shanghai 20237
- China
| | - Yuan Yuan
- The State Key Laboratory of Bioreactor Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Aiguo Hu
- Shanghai Key Laboratory of Advanced Polymeric Materials
- East China University of Science and Technology
- Shanghai 20237
- China
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36
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Lv J, Zhang Q, Zhong X, Luo S. Asymmetric Latent Carbocation Catalysis with Chiral Trityl Phosphate. J Am Chem Soc 2015; 137:15576-83. [PMID: 26594778 DOI: 10.1021/jacs.5b11085] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Stable carbocations such as tritylium ions have been widely explored as organic Lewis acid catalysts and reagents in organic synthesis. However, achieving asymmetric carbocation catalysis remains elusive ever since they were first identified over one century ago. The challenges mainly come from their limited compatibility, scarcity of chiral carbocations, as well as the extremely low barrier to racemization of chiral carbenium ions. We reported here a latent concept for asymmetric carbocation catalysis. In this strategy, chiral trityl phosphate is employed as the carbocation precursor, which undergoes facile ionic dissociation upon mild external stimulation (e.g., acid, H-bonding, polar substrates) to form a catalytically active chiral ion pair for substrate activation and chiral induction. The latent strategy provides a solution for the long sought-after asymmetric carbocation catalysis as illustrated in three different enantioselective transformations.
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Affiliation(s)
- Jian Lv
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300071, China
| | - Qichao Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Xingren Zhong
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Sanzhong Luo
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300071, China
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37
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Lian X, Lin L, Wang G, Liu X, Feng X. ChiralN,N′-Dioxide-Scandium(III)-Catalyzed Asymmetric Dearomatization of 2-Naphthols through an Amination Reaction. Chemistry 2015; 21:17453-8. [DOI: 10.1002/chem.201503276] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Indexed: 01/12/2023]
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38
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Richmond E, Ling KB, Duguet N, Manton LB, Çelebi-Ölçüm N, Lam YH, Alsancak S, Slawin AMZ, Houk KN, Smith AD. An asymmetric pericyclic cascade approach to 3-alkyl-3-aryloxindoles: generality, applications and mechanistic investigations. Org Biomol Chem 2015; 13:1807-17. [PMID: 25501712 DOI: 10.1039/c4ob02526a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The reaction of L-serine derived N-arylnitrones with alkylarylketenes generates asymmetric 3-alkyl-3-aryloxindoles in good to excellent yields (up to 93%) and excellent enantioselectivity (up to 98% ee) via a pericyclic cascade process. The optimization, scope and applications of this transformation are reported, alongside further synthetic and computational investigations. The preparation of the enantiomer of a Roche anti-cancer agent (RO4999200) 1 (96% ee) in three steps demonstrates the potential utility of this methodology.
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Affiliation(s)
- Edward Richmond
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, UK.
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39
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Yin C, Lin L, Zhang D, Feng J, Liu X, Feng X. Asymmetric [3 + 2] Cycloaddition of Methyleneindolinones with N,N′-Cyclic Azomethine Imines Catalyzed by a N,N′-Dioxide–Mg(OTf)2 Complex. J Org Chem 2015; 80:9691-9. [DOI: 10.1021/acs.joc.5b01760] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Chengkai Yin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Dong Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Juhua Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, People’s Republic of China
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40
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Zheng H, Liu X, Xu C, Xia Y, Lin L, Feng X. Regio- and Enantioselective Aza-Diels-Alder Reactions of 3-Vinylindoles: A Concise Synthesis of the Antimalarial Spiroindolone NITD609. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505717] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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41
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Zheng H, Liu X, Xu C, Xia Y, Lin L, Feng X. Regio- and Enantioselective Aza-Diels-Alder Reactions of 3-Vinylindoles: A Concise Synthesis of the Antimalarial Spiroindolone NITD609. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/anie.201505717] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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42
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Zhang X, Wang M, Ding R, Xu YH, Loh TP. Highly Enantioselective and Anti-Diastereoselective Catalytic Intermolecular Glyoxylate–Ene Reactions: Effect of the Geometrical Isomers of Alkenes. Org Lett 2015; 17:2736-9. [DOI: 10.1021/acs.orglett.5b01151] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiang Zhang
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Min Wang
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Ran Ding
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Yun-He Xu
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Teck-Peng Loh
- Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371
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43
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Luo W, Zhao J, Yin C, Liu X, Lin L, Feng X. Catalytic hetero-ene reactions of 5-methyleneoxazolines: highly enantioselective synthesis of 2,5-disubstituted oxazole derivatives. Chem Commun (Camb) 2015; 50:7524-6. [PMID: 24889135 DOI: 10.1039/c4cc02809k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient catalytic asymmetric hetero-ene reaction of 5-methyleneoxazolines with 1,2-dicarbonyl compounds (including α-ketoesters and glyoxal derivatives) was realized using Ni(II)-N,N'-dioxide complexes as the catalysts. It provides a rapid, high yielding (up to 99%) route for the preparation of 2,5-disubstituted oxazole derivatives in a highly enantioenriched form (up to >99% ee) under mild conditions.
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Affiliation(s)
- Weiwei Luo
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China.
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44
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Yu JS, Liao FM, Gao WM, Liao K, Zuo RL, Zhou J. Michael Addition Catalyzed by Chiral Secondary Amine Phosphoramide Using Fluorinated Silyl Enol Ethers: Formation of Quaternary Carbon Stereocenters. Angew Chem Int Ed Engl 2015; 54:7381-5. [DOI: 10.1002/anie.201501747] [Citation(s) in RCA: 149] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 03/25/2015] [Indexed: 12/24/2022]
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45
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Yu JS, Liao FM, Gao WM, Liao K, Zuo RL, Zhou J. Michael Addition Catalyzed by Chiral Secondary Amine Phosphoramide Using Fluorinated Silyl Enol Ethers: Formation of Quaternary Carbon Stereocenters. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501747] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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46
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Itoh H, Maeda H, Yamada S, Hori Y, Mino T, Sakamoto M. BINOL-Al catalysed asymmetric cyclization and amplification: preparation of optically active menthol analogs. Org Biomol Chem 2015; 13:5817-25. [PMID: 25913595 DOI: 10.1039/c5ob00433k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We report a highly selective asymmetric ring-closing ene reaction catalysed by aluminum complexes with chiral BINOL. This reaction yields optically active 6-membered cyclized alcohols from unsaturated aldehydes, with good diastereo- and enantioselectivities. Asymmetric amplification of this reaction was investigated by varying the ee of the BINOL employed in the catalyst.
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Affiliation(s)
- Hisanori Itoh
- Takasago International Corporation, 4-11, Nishi-Yawata 1-Chome, Hiratsuka City, Kanagawa 254-0073, Japan.
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47
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Wang P, Feng LW, Wang L, Li JF, Liao S, Tang Y. Asymmetric 1,2-Perfluoroalkyl Migration: Easy Access to Enantioenriched α-Hydroxy-α-perfluoroalkyl Esters. J Am Chem Soc 2015; 137:4626-9. [DOI: 10.1021/jacs.5b01517] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Pan Wang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Liang-Wen Feng
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Lijia Wang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Jun-Fang Li
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Saihu Liao
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Yong Tang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
- Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin)
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48
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Zhao X, Liu X, Mei H, Guo J, Lin L, Feng X. Asymmetric Dearomatization of Indoles through a Michael/Friedel-Crafts-Type Cascade To Construct Polycyclic Spiroindolines. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201410814] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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49
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Zhao X, Liu X, Mei H, Guo J, Lin L, Feng X. Asymmetric Dearomatization of Indoles through a Michael/Friedel-Crafts-Type Cascade To Construct Polycyclic Spiroindolines. Angew Chem Int Ed Engl 2015; 54:4032-5. [DOI: 10.1002/anie.201410814] [Citation(s) in RCA: 149] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 12/22/2015] [Indexed: 01/15/2023]
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50
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Luo W, Zhao J, Ji J, Lin L, Liu X, Mei H, Feng X. A catalytic asymmetric carbonyl–ene reaction of β,γ-unsaturated α-ketoesters with 5-methyleneoxazolines. Chem Commun (Camb) 2015; 51:10042-5. [DOI: 10.1039/c5cc02748a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A catalytic asymmetric carbonyl–ene reaction of β,γ-unsaturated α-ketoesters with 5-methyleneoxazolines was accomplished. The process was based on the utilization of a chiral N,N′-dioxide/MgII catalyst, providing the desired products with excellent outcomes.
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Affiliation(s)
- Weiwei Luo
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Jiannan Zhao
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Jie Ji
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Hongjiang Mei
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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