1
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Lv XX, Liu N, Chen F, Zhang H, Du ZH, Wang P, Yuan M, Da CS. Highly asymmetric aldol reaction of isatins and ketones catalyzed by chiral bifunctional primary-amine organocatalyst on water. Org Biomol Chem 2023; 21:8695-8701. [PMID: 37861676 DOI: 10.1039/d3ob01227a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Herein, we have reported an environmentally friendly asymmetric aldol reaction between isatins and ketones catalyzed by double-hydrogen-bonded primary amine organocatalysts on water under mild conditions. Enantioenriched 3-hydroxy-2-oxindoles were obtained in high yields (up to 99%) and excellent stereoselectivities (up to 99 : 1 dr and 99% ee) under optimal conditions. Furthermore, the model reaction involving isatin and cyclohexanone was successfully scaled to 10 mmol with no reduction in yield or stereoselectivity. In addition, the catalyst was recovered via simple filtration and was subsequently reused on water, which highlights its good application potential.
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Affiliation(s)
- Xiao-Xiong Lv
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, North 4th Road, Shihezi, Xinjiang 832003, China.
| | - Ning Liu
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, North 4th Road, Shihezi, Xinjiang 832003, China.
| | - Fei Chen
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, North 4th Road, Shihezi, Xinjiang 832003, China.
| | - Hao Zhang
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, North 4th Road, Shihezi, Xinjiang 832003, China.
| | - Zhi-Hong Du
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, North 4th Road, Shihezi, Xinjiang 832003, China.
| | - Pei Wang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, China
| | - Meng Yuan
- Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Chao Shan Da
- Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
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2
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D. V. H, Annadate RA, Pansare SV. Synthesis and Evaluation of N-Diaminophosphoryl Aminothioureas as Bifunctional Catalysts for Vinylogous Aldol Reactions of Isatins and 2(3 H)-Furanones. ACS OMEGA 2023; 8:3190-3197. [PMID: 36713689 PMCID: PMC9878653 DOI: 10.1021/acsomega.2c06637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 12/23/2022] [Indexed: 06/18/2023]
Abstract
The organocatalytic asymmetric direct vinylogous aldol reaction of N-methylisatins 1 and γ-butenolides 2 to provide 3-hydroxy-2-oxindole derivatives 3 was investigated. A series of N-diaminophosphoryl aminothiourea catalysts 4 was synthesized, and their utility for the stereoselective formation of 3 was examined.
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3
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Catalytic Efficiency of Primary α-Amino Amides as Multifunctional Organocatalysts in Recent Asymmetric Organic Transformations. Catalysts 2022. [DOI: 10.3390/catal12121674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Chiral primary α-amino amides, consisting of an adjacent enamine bonding site (Bronsted base site), a hydrogen bonding site (Bronsted acid site), and flexible bulky substituent groups to modify the steric factor, are proving to be extremely valuable bifunctional organocatalysts for a wide range of asymmetric organic transformations. Primary α-amino amides are less expensive alternatives to other primary amino organocatalysts, such as chiral diamines and cinchona-alkaloid-derived primary amines, as they are easy to synthesize, air-stable, and allow for the incorporation of a variety of functional groups. In recent years, we have demonstrated the catalytic use of simple primary α-amino amides and their derivatives as organocatalysts for the aldol reaction, Strecker reaction, Michael tandem reaction, allylation of aldehydes, reduction of N-Aryl mines, opening of epoxides, hydrosilylation, asymmetric hydrogen transfer, and N-specific nitrosobenzene reaction with aldehydes.
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4
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Novichikhina NP, Shestakov AS, Skoptsova AA, Ashrafova ZE, Stolpovskaya NV, Kosheleva EA, Shatalov GV, Ledenyova IV, Shikhaliev KS. Synthesis of New 1-Hydroxy-4H-pyrrolo[3,2,1-ij]quinolin-2(1H)-one Derivatives. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428021100043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Tseke K, Lennon C, O'Mahony J, Kinsella M. A Continuous‐Flow Route to Enantioenriched 3‐Substituted‐3‐Hydroxyoxindoles: Organocatalytic Aldol Reactions of Isatin with Acetone. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100735] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Kavnen Tseke
- Pharmaceutical and Molecular Biotechnology Research Centre (PMBRC) Waterford Institute of Technology Cork Road Waterford X91 K0EK Republic of Ireland
| | - Claire Lennon
- Pharmaceutical and Molecular Biotechnology Research Centre (PMBRC) Waterford Institute of Technology Cork Road Waterford X91 K0EK Republic of Ireland
| | - Joseph O'Mahony
- Pharmaceutical and Molecular Biotechnology Research Centre (PMBRC) Waterford Institute of Technology Cork Road Waterford X91 K0EK Republic of Ireland
| | - Michael Kinsella
- Pharmaceutical and Molecular Biotechnology Research Centre (PMBRC) Waterford Institute of Technology Cork Road Waterford X91 K0EK Republic of Ireland
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6
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Wang P, Zhang Y, Yang H, Ma G, Wang J, Yang W, Du Z, Da C. Enantioselective Cross‐Aldol Reaction with Ketones and Non‐Enolizable Ketones Catalyzed by Tetrapeptides. ChemistrySelect 2021. [DOI: 10.1002/slct.202101170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Pei Wang
- School of Basic Medical Sciences Ningxia Medical University Yinchuan China
| | - Yang Zhang
- Department School of Pharmacy Ningxia Medical University Yinchuan China
| | - Hong Yang
- School of Basic Medical Sciences Ningxia Medical University Yinchuan China
| | - Guo‐Rong Ma
- School of Basic Medical Sciences Ningxia Medical University Yinchuan China
| | - Jin‐Bao Wang
- Animal Experiment Center Ningxia Medical University Yinchuan China
| | - Wen Yang
- Animal Experiment Center Ningxia Medical University Yinchuan China
| | - Zhi‐Hong Du
- Institute of Biochemistry and Molecular Biology School of Life Sciences Lanzhou University Lanzhou China
| | - Chao‐Shan Da
- Institute of Biochemistry and Molecular Biology School of Life Sciences Lanzhou University Lanzhou China
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7
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Juaristi E. Recent developments in next generation (S)-proline-derived chiral organocatalysts. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132143] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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8
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Kon K, Kohari Y, Murata M. Tripeptide-Catalyzed Direct Asymmetric Aldol Reaction of Activated Ketones. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.1174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Yoshihito Kohari
- Division of Applied Chemistry, Faculty of Engineering, Kitami Institute of Technology
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9
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Rani D, Sethi A, Kaur K, Agarwal J. Ultrasonication-Assisted Synthesis of a d-Glucosamine-Based β-CD Inclusion Complex and Its Application as an Aqueous Heterogeneous Organocatalytic System. J Org Chem 2020; 85:9548-9557. [PMID: 32672959 DOI: 10.1021/acs.joc.0c00420] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
For the first time, an inclusion complex has been crafted between a carbohydrate-based molecule and a β-cyclodextrin (CD) hydrophobic cavity for asymmetric catalytic applications. This novel d-glucosamine-based inclusion compound has been synthesized in high yields using an innovative and proficient acoustic cavitation technology and well characterized using various techniques, such as infrared spectroscopy, nuclear magnetic resonance spectroscopy, ultraviolet-visible spectroscopy, thermogravimetric analysis, scanning electron microscopy, and other spectroscopic techniques. It was observed that the inclusion of a d-glucosamine derivative into the hydrophobic cavity of β-CD increased its surface area and thermal stability. This catalytic system worked well in water for the direct aldol reaction to afford the products in excellent yields with high diastereo- and enantioselectivities.
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Affiliation(s)
- Dhiraj Rani
- Department of Chemistry and Center of Advanced Studies, Panjab University, Chandigarh 160014, India
| | - Aaftaab Sethi
- Department of Chemistry and Center of Advanced Studies, Panjab University, Chandigarh 160014, India
| | - Khushwinder Kaur
- Department of Chemistry and Center of Advanced Studies, Panjab University, Chandigarh 160014, India
| | - Jyoti Agarwal
- Department of Chemistry and Center of Advanced Studies, Panjab University, Chandigarh 160014, India
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10
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Becerra D, Castillo J, Insuasty B, Cobo J, Glidewell C. Synthesis of N-substituted 3-(2-aryl-2-oxoethyl)-3-hydroxyindolin-2-ones and their conversion to N-substituted (E)-3-(2-aryl-2-oxoethylidene)indolin-2-ones: synthetic sequence, spectroscopic characterization and structures of four 3-hydroxy compounds and five oxoethylidene products. Acta Crystallogr C Struct Chem 2020; 76:433-445. [PMID: 32367824 PMCID: PMC7199199 DOI: 10.1107/s2053229620004143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 03/25/2020] [Indexed: 11/24/2022] Open
Abstract
An operationally simple and time-efficient approach has been developed for the synthesis of racemic N-substituted 3-(2-aryl-2-oxoethyl)-3-hydroxyindolin-2-ones by a piperidine-catalysed aldol reaction between aryl methyl ketones and N-alkylisatins. These aldol products were used successfully as strategic intermediates for the preparation of N-substituted (E)-3-(2-hetaryl-2-oxoethylidene)indolin-2-ones by a stereoselective dehydration reaction under acidic conditions. The products have all been fully characterized by 1H and 13C NMR spectroscopy, by mass spectrometry and, for a representative selection, by crystal structure analysis. In each of (RS)-1-benzyl-3-hydroxy-3-[2-(4-methoxyphenyl)-2-oxoethyl]indolin-2-one, C24H21NO4, (Ic), and (RS)-1-benzyl-3-{2-[4-(dimethylamino)phenyl]-2-oxoethyl}-3-hydroxyindolin-2-one, C25H24N2O3, (Id), inversion-related pairs of molecules are linked by O-H...O hydrogen bonds to form R22(10) rings, which are further linked into chains of rings by a combination of C-H...O and C-H...π(arene) hydrogen bonds in (Ic) and by C-H...π(arene) hydrogen bonds in (Id). The molecules of (RS)-1-benzyl-3-hydroxy-3-[2-oxo-2-(pyridin-4-yl)ethyl]indolin-2-one, C22H18N2O3, (Ie), are linked into a three-dimensional framework structure by a combination of O-H...N, C-H...O and C-H...π(arene) hydrogen bonds. (RS)-3-[2-(Benzo[d][1,3]dioxol-5-yl)-2-oxoethyl]-1-benzyl-3-hydroxyindolin-2-one, C24H19NO5, (If), crystallizes with Z' = 2 in the space group P-1 and the molecules are linked into complex sheets by a combination of O-H...O, C-H...O and C-H...π(arene) hydrogen bonds. In each of (E)-1-benzyl-3-[2-(4-fluorophenyl)-2-oxoethylidene]indolin-2-one, C23H16FNO2, (IIa), and (E)-1-benzyl-3-[2-oxo-2-(thiophen-2-yl)ethylidene]indolin-2-one, C21H15NO2S, (IIg), the molecules are linked into simple chains by a single C-H...O hydrogen bond, while those of (E)-1-benzyl-3-[2-oxo-2-(pyridin-4-yl)ethylidene]indolin-2-one, C22H16N2O2, (IIe), are linked by three C-H...O hydrogen bonds to form sheets which are further linked into a three-dimensional structure by C-H...π(arene) hydrogen bonds. There are no hydrogen bonds in the structures of either (E)-1-benzyl-3-[2-(4-methoxyphenyl)-2-oxoethylidene]indolin-2-one, C24H19NO3, (IIc), or (E)-1-benzyl-5-chloro-3-[2-(4-chlorophenyl)-2-oxoethylidene]indolin-2-one, C23H15Cl2NO2, (IIh), but the molecules of (IIh) are linked into chains of π-stacked dimers by a combination of C-Cl...π(arene) and aromatic π-π stacking interactions.
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Affiliation(s)
- Diana Becerra
- Escuela de Ciencias Química, Universidad Pedagógica y Tecnológica de Colombia, 150003 Tunja, Colombia
| | - Juan Castillo
- Escuela de Ciencias Química, Universidad Pedagógica y Tecnológica de Colombia, 150003 Tunja, Colombia
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes, 111711 Bogotá, Colombia
| | - Braulio Insuasty
- Heterocyclic Compounds Research Group, Department of Chemistry, Universidad del Valle, AA 25360 Cali, Colombia
| | - Justo Cobo
- Departamento de Química Inorgánica y Orgánica, Universidad de Jaén, 23071 Jaén, Spain
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11
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Gavendova M, Lennon CM, Coffey L, Manesiotis P, Kinsella M. Novel
β
‐amino Amide Organocatalysts for the Synthesis of Pharmaceutically Relevant Oxindoles. ChemistrySelect 2019. [DOI: 10.1002/slct.201901360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mariana Gavendova
- Pharmaceutical and Molecular Biotechnology Research CentreDepartment of ScienceWaterford Institute of Technology Cork Road, Waterford Ireland
| | - Claire M. Lennon
- Pharmaceutical and Molecular Biotechnology Research CentreDepartment of ScienceWaterford Institute of Technology Cork Road, Waterford Ireland
| | - Lee Coffey
- Pharmaceutical and Molecular Biotechnology Research CentreDepartment of ScienceWaterford Institute of Technology Cork Road, Waterford Ireland
| | - Panagiotis Manesiotis
- School of Chemistry and Chemical EngineeringQueen's University BelfastDavid Keir Building Stranmillis Road, Belfast BT9 5AG United Kingdom
| | - Michael Kinsella
- Pharmaceutical and Molecular Biotechnology Research CentreDepartment of ScienceWaterford Institute of Technology Cork Road, Waterford Ireland
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12
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Owolabi IA, Chennapuram M, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Takeshita M, Nakano H. Amino Amide Organocatalysts for Asymmetric Michael Addition of β-Keto Esters with β-Nitroolefins. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20180302] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Isiaka Alade Owolabi
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto, Muroran, Hokkaido 050-8585, Japan
| | - Madhu Chennapuram
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto, Muroran, Hokkaido 050-8585, Japan
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto, Muroran, Hokkaido 050-8585, Japan
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai, Miyagi 981-8558, Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto, Muroran, Hokkaido 050-8585, Japan
| | - Michio Tokiwa
- Tokiwakai Group, 62 Numajiri, Tsuduri-chou, Uchigo, Iwaki, Fukushima 973-8053, Japan
| | - Mitsuhiro Takeshita
- Tokiwakai Group, 62 Numajiri, Tsuduri-chou, Uchigo, Iwaki, Fukushima 973-8053, Japan
| | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto, Muroran, Hokkaido 050-8585, Japan
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13
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Cruz-Hernández C, Landeros JM, Juaristi E. Multifunctional phosphoramide-(S)-prolinamide derivatives as efficient organocatalysts in asymmetric aldol and Michael reactions. NEW J CHEM 2019. [DOI: 10.1039/c9nj00300b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Knowledge accumulated in the field of organocatalysis led to the design and synthesis of three novel and efficient organocatalysts for the stereoselective aldol and Michael reactions in the presence of water.
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Affiliation(s)
- Carlos Cruz-Hernández
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados
- Avenida IPN # 2508
- 07360 Ciudad de México
- Mexico
| | - José M. Landeros
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados
- Avenida IPN # 2508
- 07360 Ciudad de México
- Mexico
| | - Eusebio Juaristi
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados
- Avenida IPN # 2508
- 07360 Ciudad de México
- Mexico
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14
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Owolabi IA, Subba Reddy U, Chennapuram M, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Takeshita M, Nakano H. A new type of amino amide organocatalyzed enantioselective crossed aldol reaction of ketones with aromatic aldehydes. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.07.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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15
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Wang LM, Zhao MJ, Chen Z, Mu HW, Jin Y. Urea derivative catalyzed enantioselective aldol reaction of isatins with ketones. Chirality 2018; 30:1005-1011. [PMID: 29856893 DOI: 10.1002/chir.22977] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 03/22/2018] [Accepted: 04/23/2018] [Indexed: 11/11/2022]
Abstract
Urea derivative has been used to catalyze the asymmetric aldol reaction of isatins with ketones. The resulting 3-alkyl-3-hydroxy-indolin-2-ones products were obtained in good yields (70%-94%) with high enantioselectivities (up to 87%ee).
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Affiliation(s)
- Li Ming Wang
- Department of Pharmacy, Jilin Medical University, Jilin, China
| | - Mei Jun Zhao
- Department of Pharmacy, Jilin Medical University, Jilin, China
| | - Zhe Chen
- Department of Pharmacy, Jilin Medical University, Jilin, China
| | - Hong Wen Mu
- Department of Pharmacy, Jilin Medical University, Jilin, China
| | - Ying Jin
- Department of Pharmacy, Jilin Medical University, Jilin, China
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16
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Wan Y, Yuan R, Cui H, Zhang XX, Li MQ, Xu JB, Dou PF, Zhang LY, Wu H. Glucose-containing imidazolium salt-catalyzed cross-aldol reaction of isatins and unactivated ketones. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-017-3246-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Mohammadi Ziarani G, Moradi R, Lashgari N. Asymmetric synthesis of chiral oxindoles using isatin as starting material. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.01.025] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Yan CX, Zhou PP, Yang FL, Wu RZ, Yang X, Yang F, Shao X. Chiral bisoxazoline catalyzed decarboxylative aldol reactions between β-carbonyl acids and trifluoroacetaldehyde hemiacetals as well as trifluoroacetaldehyde: the mechanism, the origin of enantioselectivity and the role of a catalyst. Org Chem Front 2018. [DOI: 10.1039/c8qo00578h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The role of a catalyst in the decarboxylative aldol reactions between β-carbonyl acids and trifluoroacetaldehyde hemiacetals as well as trifluoroacetaldehyde catalyzed by chiral bisoxazoline were unveiled theoretically.
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Affiliation(s)
- Chao-Xian Yan
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Pan-Pan Zhou
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Fang-Ling Yang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Rui-Zhi Wu
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Xing Yang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Fan Yang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
| | - Xiangfeng Shao
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
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19
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Chennapuram M, Subba Reddy UV, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Takeshita M, Nakano H. Hybrid-Type Squaramide-Fused Amino Alcohol Organocatalysts for Enantioselective Diels-Alder Reactions of 3-Hydroxy-2-Pyridones with Maleimides. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700830] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Madhu Chennapuram
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto-cho 050-8585 Muroran Japan
| | - U. V. Subba Reddy
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto-cho 050-8585 Muroran Japan
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto-cho 050-8585 Muroran Japan
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University; 4-4-1 Komatsushima, Aoba-ku 981-8558 Sendai Japan
| | - Eunsang Kwon
- Research and Analytical Centre for Giant Molecules; Graduate School of Sciences; Tohoku University; 6-3 Aoba, Aramaki, Aoba-ku 980-8578 Sendai Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto-cho 050-8585 Muroran Japan
| | - Michio Tokiwa
- Tokiwakai Group; 62 Numajiri, Tsuduri-chou Uchigo 973-8053 Iwaki Japan
| | | | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto-cho 050-8585 Muroran Japan
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21
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Kucherenko AS, Kostenko AA, Gerasimchuk VV, Zlotin SG. Stereospecific diaza-Cope rearrangement as an efficient tool for the synthesis of DPEDA pyridine analogs and related C2-symmetric organocatalysts. Org Biomol Chem 2017; 15:7028-7033. [DOI: 10.1039/c7ob01852e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enantiomerically pure trans-1,2-di-(pyridinyl)ethylene-1,2-diamines were synthesized via a stereospecific diaza-Cope rearrangement and converted to prolinamide-based recyclable organocatalysts.
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Affiliation(s)
- A. S. Kucherenko
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- Moscow
- Russia
| | - A. A. Kostenko
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- Moscow
- Russia
| | - V. V. Gerasimchuk
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- Moscow
- Russia
| | - S. G. Zlotin
- N. D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- Moscow
- Russia
| |
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