1
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Design, Catalyst-Free Synthesis of New Novel α-Trifluoromethylated Tertiary Alcohols Bearing Coumarins as Potential Antifungal Agents. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010260. [PMID: 36615454 PMCID: PMC9822406 DOI: 10.3390/molecules28010260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/23/2022] [Accepted: 12/26/2022] [Indexed: 12/31/2022]
Abstract
A new method for the synthesis of α-trifluoromethylated tertiary alcohols bearing coumarins is described. The reaction of 3-(trifluoroacetyl)coumarin and pyrrole provided the target compounds with high yields under catalyst-free, mild conditions. The crystal structure of compound 3fa was investigated by X-ray diffraction analysis. The biological activities, such as in vitro antifungal activity of the α-trifluoromethylated tertiary alcohols against Fusarium graminearum, Fusarium oxysporum, Fusarium moniliforme, Rhizoctonia solani Kuhn, and Phytophthora parasitica var nicotianae, were investigated. The bioassay results indicated that compounds 3ad, 3gd, and 3hd showed broad-spectrum antifungal activity in vitro. Compound 3cd exhibited excellent fungicidal activity against Rhizoctonia solani Kuhn, with an EC50 value of 10.9 μg/mL, which was comparable to that of commercial fungicidal triadimefon (EC50 = 6.1 μg/mL). Furthermore, molecular docking study suggested that 3cd had high binding affinities with 1W9U, like argifin.
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2
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Li Y, Dong M, Gao N, Cao G, Teng D. Zn (II)/spiroQuinox catalyzed asymmetric Friedel–Crafts alkylation of indoles with cyclic
N
‐sulfonyl ketimino esters. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yanshun Li
- College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
| | - Mengqi Dong
- College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
| | - Nanxing Gao
- College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
| | - Guorui Cao
- College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
| | - Dawei Teng
- College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
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3
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Systematic asymmetric analog synthesis of fluspidine, a σ1 receptor ligand, to improve ligand affinity. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Recent Advances in Selected Asymmetric Reactions Promoted by Chiral Catalysts: Cyclopropanations, Friedel–Crafts, Mannich, Michael and Other Zinc-Mediated Processes—An Update. Symmetry (Basel) 2021. [DOI: 10.3390/sym13101762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The main purpose of this review article is to present selected asymmetric synthesis reactions in which chemical and stereochemical outcomes are dependent on the use of an appropriate chiral catalyst. Optically pure or enantiomerically enriched products of such transformations may find further applications in various fields. Among an extremely wide variety of asymmetric reactions catalyzed by chiral systems, we are interested in: asymmetric cyclopropanation, Friedel–Crafts reaction, Mannich and Michael reaction, and other stereoselective processes conducted in the presence of zinc ions. This paper describes the achievements of the above-mentioned asymmetric transformations in the last three years. The choice of reactions is related to the research that has been carried out in our laboratory for many years.
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5
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Mu L, Yang Y, Liu J, Du W, Chen J, Shi G, Fang H. Hydrated cation-π interactions of π-electrons with hydrated Li +, Na +, and K + cations. Phys Chem Chem Phys 2021; 23:14662-14670. [PMID: 34213518 DOI: 10.1039/d1cp01609a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cation-π interactions are essential for many chemical, biological, and material processes, and these processes usually involve an aqueous salt solution. However, there is still a lack of a full understanding of the hydrated cation-π interactions between the hydrated cations and the aromatic ring structures on the molecular level. Here, we report a molecular picture of hydrated cation-π interactions, by using the calculations of density functional theory (DFT). Specifically, the graphene sheet can distort the hydration shell of the hydrated K+ to interact with K+ directly, which is hereafter called water-cation-π interactions. In contrast, the hydration shell of the hydrated Li+ is quite stable and the graphene sheet interacts with Li+ indirectly, mediated by water molecules, which we hereafter call the cation-water-π interactions. The behavior of hydrated cations adsorbed on a graphene surface is mainly attributed to the competition between the cation-π interactions and hydration effects. These findings provide valuable details of the structures and the adsorption energy of hydrated cations adsorbed onto the graphene surface.
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Affiliation(s)
- Liuhua Mu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China and University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yizhou Yang
- Department of Physics, East China University of Science and Technology, Shanghai 200237, China.
| | - Jian Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Wei Du
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China and University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jige Chen
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China and Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Guosheng Shi
- Shanghai Applied Radiation Institute and State Key Lab. Advanced Special Steel, Shanghai University, Shanghai 200444, China.
| | - Haiping Fang
- Department of Physics, East China University of Science and Technology, Shanghai 200237, China. and Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
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6
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Kiran INC, Fujita K, Kobayashi K, Tanaka S, Kitamura M. A Monocationic Zn(II) Acetate Complex of a Chiral Bisamidine Dioxolane Ligand, Naph-diPIM-dioxo-R, for the Asymmetric 1,3-Dipolar Cycloaddition of Tridentate α-Substituted α-Imino Esters and Acrylates to Multi-Substituted Prolines: Importance of an n-π* Interaction for High Enantioselectivity. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Kazuki Fujita
- Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
| | - Kazuki Kobayashi
- Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
| | - Shinji Tanaka
- Research Center for Materials Science, Nagoya University, Chikusa, Nagoya, Aichi 464-8602, Japan
| | - Masato Kitamura
- Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
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7
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Le TP, Tanaka S, Yoshimura M, Kitamura M. Mechanism Change of (+)-Nonlinear Effect in a Phase Separation System in a CuII-Catalyzed Asymmetric Friedel-Crafts Reaction Using a C2-Chiral Dioxolane-Containing-Bisamidine Ligand, Naph-diPIM-dioxo-iPr. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200172] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Thien Phuc Le
- Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
| | - Shinji Tanaka
- Research Center for Materials Science, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
| | - Masahiro Yoshimura
- Division of Liberal Arts and Sciences, Aichi Gakuin University, Iwasaki, Nisshin, Aichi 470-0195, Japan
| | - Masato Kitamura
- Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
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8
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Chaithanya Kiran IN, Fujita K, Tanaka S, Kitamura M. Asymmetric Synthesis of Multi‐substituted Prolines via a Catalytic 1,3‐Dipolar Cycloaddition Using a Monocationic Zn
II
OAc Complex of a Chiral Bisamidine Ligand, Naph‐diPIM‐dioxo‐R. ChemCatChem 2020. [DOI: 10.1002/cctc.202001202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Kazuki Fujita
- Graduate School of Pharmaceutical Sciences Nagoya University Chikusa Nagoya 464-8601 Japan
| | - Shinji Tanaka
- Research Center for Materials Science Nagoya University Chikusa Nagoya 464-8602 Japan
| | - Masato Kitamura
- Graduate School of Pharmaceutical Sciences Nagoya University Chikusa Nagoya 464-8601 Japan
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9
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Wang W, Xiong W, Wang J, Wang QA, Yang W. Brønsted Acid-Catalyzed Asymmetric Friedel-Crafts Alkylation of Indoles with Benzothiazole-Bearing Trifluoromethyl Ketone Hydrates. J Org Chem 2020; 85:4398-4407. [PMID: 32118421 DOI: 10.1021/acs.joc.0c00116] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An efficient Brønsted acid-catalyzed asymmetric Friedel-Crafts alkylation of indoles with benzothiazole-bearing trifluoromethyl ketone hydrates as electrophiles has been developed. The mild organocatalytic reactions proceeded well with low catalyst loading to afford a range of enantioenriched α-trifluoromethyl tertiary alcohols containing both benzothiazole and indole rings with excellent yields and enantioselectivities.
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Affiliation(s)
- Wei Wang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Wenhui Xiong
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Jinping Wang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Qiu-An Wang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Wen Yang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
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10
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Winter M, Kim H, Waser M. Pd-Catalyzed Allylation of Imines to Access α-CF 3-Substituted α-Amino Acid Derivatives. European J Org Chem 2019; 2019:7122-7127. [PMID: 31798337 PMCID: PMC6887540 DOI: 10.1002/ejoc.201901272] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Indexed: 01/06/2023]
Abstract
We herein report a high yielding protocol for the direct α-allylation of easily accessible trifluoropyruvate-derived imines using Pd-catalysis. The reaction gives access to a variety of different α-allylated-α-CF3-amino acids in a straightforward manner, starting from commercially available trifluoropyruvate. We also provide a proof-of-concept for an enantioselective protocol (up to er = 75:25) by using chiral phosphane ligands.
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Affiliation(s)
- Michael Winter
- Institute of Organic ChemistryJohannes Kepler University LinzAltenbergerstr. 694040LinzAustria
| | - Hyunwoo Kim
- Department of ChemistryKorea Advanced Institute of Science and Technology291 Daehak‐ro34141DaejeonYuseong‐guRepublic of Korea
| | - Mario Waser
- Institute of Organic ChemistryJohannes Kepler University LinzAltenbergerstr. 694040LinzAustria
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11
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Arai T, Araseki K, Kakino J. Catalytic Asymmetric Aza-Friedel–Crafts-Type Reaction of Indoles with Isatin-Derived N-Cbz-Ketimines Using a Chiral Bis(Imidazolidine)-Containing NCN-Pincer Palladium Catalyst. Org Lett 2019; 21:8572-8576. [DOI: 10.1021/acs.orglett.9b03148] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Takayoshi Arai
- Soft Molecular Activation Research Center (SMARC), Chiba Iodine Research Innovation Center (CIRIC), and Department of Chemistry, Graduate School of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan
| | - Kensuke Araseki
- Soft Molecular Activation Research Center (SMARC), Chiba Iodine Research Innovation Center (CIRIC), and Department of Chemistry, Graduate School of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan
| | - Junki Kakino
- Soft Molecular Activation Research Center (SMARC), Chiba Iodine Research Innovation Center (CIRIC), and Department of Chemistry, Graduate School of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan
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12
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Morimoto K, Le TP, Manna SK, Kiran INC, Tanaka S, Kitamura M. Water, an Essential Element for a Zn II -Catalyzed Asymmetric Quinone Diels-Alder Reaction: Multi-Selective Construction of Highly Functionalized cis-Decalins. Chem Asian J 2019; 14:3283-3290. [PMID: 31456303 DOI: 10.1002/asia.201900995] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 08/20/2019] [Indexed: 11/11/2022]
Abstract
A ZnII complex of a C2 -chiral bisamidine-type sp2 N bidentate ligand (LR ) possessing two dioxolane rings at both ends catalyzes a highly efficient quinone asymmetric Diels-Alder reaction (qADA) between o-alkoxy-p-benzoquinones and 1-alkoxy-1,3-butadienes to construct highly functionalized chiral cis-decalins, proceeding in up to a >99:1 enantiomer ratio with a high generality in the presence of H2 O (H2 O:ZnII =4-6:1). In the absence of water, little reaction occurs. The loading amount of the chiral ligand can be minimized to 0.02 mol % with a higher Zn/LR ratio. This first success is ascribed to a supramolecular 3D arrangement of substrates, in which two protons of an "H2 O-ZnII " reactive species make a linear hydrogen bond network with a dioxolane oxygen atom and one-point-binding diene; the ZnII atom captures the electron-accepting two-points-binding quinone fixed on the other dioxolane oxygen atom via an n-π* attractive interaction. The mechanisms has been supported by 1 H NMR study, kinetics, X-ray crystallographic analyses of the related ZnLR complexes, and ligand and substrate structure-reactivity-selectivity relationship.
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Affiliation(s)
- Kyosuke Morimoto
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | - Thien Phuc Le
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | - Sudipta Kumar Manna
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | | | - Shinji Tanaka
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
| | - Masato Kitamura
- Graduate School of Pharmaceutical Sciences, Nagoya University, Nagoya, Japan
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13
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Larionov VA, Yashkina LV, Medvedev MG, Smol'yakov AF, Peregudov AS, Pavlov AA, Eremin DB, Savel'yeva TF, Maleev VI, Belokon YN. Henry Reaction Revisited. Crucial Role of Water in an Asymmetric Henry Reaction Catalyzed by Chiral NNO-Type Copper(II) Complexes. Inorg Chem 2019; 58:11051-11065. [PMID: 31369247 DOI: 10.1021/acs.inorgchem.9b01574] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Chiral copper(II) and cobalt(III) complexes (1-5 and 6, respectively) derived from Schiff bases of (S)-2-(aminomethyl)pyrrolidine and salicylaldehyde derivatives were employed in a mechanistic study of the Henry reaction-type condensation of nitromethane and o-nitrobenzaldehyde in CH2Cl2 (CD2Cl2), containing different amounts of water. The reaction kinetics was monitored by 1H and 13C NMR. The addition of water had a different influence on the activity of the two types of complexes, ranging from a crucial positive effect in the case of the copper(II) complex 2 to insignificant in the case of the stereochemically inert cobalt(III) complex 6. No experimental support was found by 1H NMR studies for the classical Lewis acid complexation of the carbonyl group of the aldehyde by the central copper(II) ion, and, moreover, density functional theory (DFT) calculations support the absence of such coordination. On the other hand, a very significant complexation was found for water, and it was supported by DFT calculations. In fact, we suggest that it is the Brønsted acidity of the water molecule coordinated to the metal ion that triggers the aldehyde activation. The rate-limiting step of the reaction was the removal of an α-proton from the nitromethane molecule, as supported by the observed kinetic isotope effect equaling 6.3 in the case of the copper complex 2. It was found by high-resolution mass spectrometry with electrospray ionization that the copper(II) complex 2 existed in CH2Cl2 in a dimeric form. The reaction had a second-order dependence on the catalyst concentration, which implicated two dimeric forms of the copper(II) complex 2 in the rate-limiting step. Furthermore, DFT calculations help to generate a plausible structure of the stereodetermining transition step of the condensation.
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Affiliation(s)
- Vladimir A Larionov
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation.,Department of Inorganic Chemistry , Peoples' Friendship University of Russia (RUDN University) , Miklukho-Maklaya Street 6 , 117198 Moscow , Russian Federation
| | - Lidiya V Yashkina
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation
| | - Michael G Medvedev
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation.,N. D. Zelinsky Institute of Organic Chemistry , Russian Academy of Sciences , Leninsky prospect 47 , 119991 Moscow , Russian Federation.,National Research University Higher School of Economics , Myasnitskaya Street 20 , 101000 Moscow , Russian Federation
| | - Alexander F Smol'yakov
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation.,Plekhanov Russian University of Economics , Stremyanny per. 36 , 117997 Moscow , Russian Federation
| | - Alexander S Peregudov
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation
| | - Alexander A Pavlov
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation
| | - Dmitry B Eremin
- N. D. Zelinsky Institute of Organic Chemistry , Russian Academy of Sciences , Leninsky prospect 47 , 119991 Moscow , Russian Federation.,The Bridge@USC , University of Southern California , 1002 Childs Way , Los Angeles , California 90089-3502 , United States
| | - Tat'yana F Savel'yeva
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation
| | - Victor I Maleev
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation
| | - Yuri N Belokon
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation
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14
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Winter M, Faust K, Himmelsbach M, Waser M. Synthesis of α-CF 3-proline derivatives by means of a formal (3 + 2)-cyclisation between trifluoropyruvate imines and Michael acceptors. Org Biomol Chem 2019; 17:5731-5735. [PMID: 31149695 PMCID: PMC6625964 DOI: 10.1039/c9ob01134j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We herein report the first formal (3 + 2)-cyclisation between 3,3,3-trifluoropyruvate-derived imines and indandione-based Michael acceptors. This reaction gives access to a novel class of spirocyclic α-CF3-α-proline derivatives with complete control of the diastereoselectivity under phase transfer-catalysed reaction conditions.
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Affiliation(s)
- Michael Winter
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstr. 69, 4040 Linz, Austria.
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15
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Shen HQ, Wu B, Xie HP, Zhou YG. Preparation of Axially Chiral 2,2′-Biimidazole Ligands through Remote Chirality Delivery and Their Application in Asymmetric Carbene Insertion into N–H of Carbazoles. Org Lett 2019; 21:2712-2717. [DOI: 10.1021/acs.orglett.9b00687] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hong-Qiang Shen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Bo Wu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Huan-Ping Xie
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- Collaborative Innovation Centre of Chemical Science and Engineering, Tianjin 300071, People’s Republic of China
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16
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Zhang H, Li S, Kang Q, Du Y. Chiral-at-metal rhodium(iii) complex catalyzed enantioselective synthesis of C2-substituted benzofuran derivatives. Org Chem Front 2019. [DOI: 10.1039/c9qo01022j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An enantioselective C2-nucleophilic functionalization of 3-aminobenzofurans has been realized under catalysis of chiral rhodium(iii) complexes, affording a large array of C2-substituted benzofuran derivatives in high yields and enantioselectivities.
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Affiliation(s)
- Haoran Zhang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Center for Excellence in Molecular Synthesis
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Shiwu Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Center for Excellence in Molecular Synthesis
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Qiang Kang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Center for Excellence in Molecular Synthesis
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Yu Du
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Center for Excellence in Molecular Synthesis
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
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