1
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Malik A, Antil K, Singh N, Sharma PR, Sharma RK. Scalable organocatalytic one pot asymmetric Strecker reaction via camphor sulfonyl functionalized crown-ether-tethered calix[4]arene. Chem Commun (Camb) 2024. [PMID: 39041355 DOI: 10.1039/d4cc02674h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
In this communication, we designed a highly selective camphor sulfonyl functionalized crown-ether-tethered calix[4]arene-derived organocatalyst for asymmetric Strecker reaction to provide the desired cyano adducts in high yields (∼99.9% yield) and enantioselectivities (up to 99.3% ee). Furthermore, 2 step facile syntheses of the antiplatelet drug (S)-clopidogrel exemplify the potential of this method for the preparation of commercial compounds.
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Affiliation(s)
- Apoorva Malik
- Sustainable Materials and Catalysis Research Laboratory (SMCRL), Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur-342037, India.
| | - Kirti Antil
- Sustainable Materials and Catalysis Research Laboratory (SMCRL), Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur-342037, India.
| | - Nikhil Singh
- Sustainable Materials and Catalysis Research Laboratory (SMCRL), Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur-342037, India.
| | - Pragati R Sharma
- Sustainable Materials and Catalysis Research Laboratory (SMCRL), Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur-342037, India.
| | - Rakesh K Sharma
- Sustainable Materials and Catalysis Research Laboratory (SMCRL), Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur-342037, India.
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2
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Pecchini P, Fochi M, Bartoccini F, Piersanti G, Bernardi L. Enantioselective organocatalytic strategies to access noncanonical α-amino acids. Chem Sci 2024; 15:5832-5868. [PMID: 38665517 PMCID: PMC11041364 DOI: 10.1039/d4sc01081g] [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: 02/15/2024] [Accepted: 03/23/2024] [Indexed: 04/28/2024] Open
Abstract
Organocatalytic asymmetric synthesis has evolved over the years and continues to attract the interest of many researchers worldwide. Enantiopure noncanonical amino acids (ncAAs) are valuable building blocks in organic synthesis, medicinal chemistry, and chemical biology. They are employed in the elaboration of peptides and proteins with enhanced activities and/or improved properties compared to their natural counterparts, as chiral catalysts, in chiral ligand design, and as chiral building blocks for asymmetric syntheses of complex molecules, including natural products. The linkage of ncAA synthesis and enantioselective organocatalysis, the subject of this perspective, tries to imitate the natural biosynthetic process. Herein, we present contemporary and earlier developments in the field of organocatalytic activation of simple feedstock materials, providing potential ncAAs with diverse side chains, unique three-dimensional structures, and a high degree of functionality. These asymmetric organocatalytic strategies, useful for forging a wide range of C-C, C-H, and C-N bonds and/or combinations thereof, vary from classical name reactions, such as Ugi, Strecker, and Mannich reactions, to the most advanced concepts such as deracemisation, transamination, and carbene N-H insertion. Concurrently, we present some interesting mechanistic studies/models, providing information on the chirality transfer process. Finally, this perspective highlights, through the diversity of the amino acids (AAs) not selected by nature for protein incorporation, the most generic modes of activation, induction, and reactivity commonly used, such as chiral enamine, hydrogen bonding, Brønsted acids/bases, and phase-transfer organocatalysis, reflecting their increasingly important role in organic and applied chemistry.
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Affiliation(s)
- Pietro Pecchini
- Department of Industrial Chemistry "Toso Montanari", Center for Chemical Catalysis C3 & INSTM RU Bologna V. Gobetti 85 40129 Bologna Italy
| | - Mariafrancesca Fochi
- Department of Industrial Chemistry "Toso Montanari", Center for Chemical Catalysis C3 & INSTM RU Bologna V. Gobetti 85 40129 Bologna Italy
| | - Francesca Bartoccini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo Piazza Rinascimento 6 61029 Urbino PU Italy
| | - Giovanni Piersanti
- Department of Biomolecular Sciences, University of Urbino Carlo Bo Piazza Rinascimento 6 61029 Urbino PU Italy
| | - Luca Bernardi
- Department of Industrial Chemistry "Toso Montanari", Center for Chemical Catalysis C3 & INSTM RU Bologna V. Gobetti 85 40129 Bologna Italy
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3
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Zhang M, Zhang Y, Du X, Ma Y, Huang H, Liao F, Fan X, Wang J, Lin H, Shao M, Liu Y, Li Y, Kang Z. Enantioselective and Band-Gap Modulation in Photocatalysis of Metal-Free Chiral Carbon Dots. ACS APPLIED MATERIALS & INTERFACES 2024; 16:19379-19390. [PMID: 38568698 DOI: 10.1021/acsami.4c02003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Photodriven chiral catalysis is the combination of photocatalysis and chiral catalysis and is considered one of the cleanest and most efficient methods for the synthesis of chiral compounds or drugs. Furthermore, due to the potential metal contamination associated with most metal-based catalysts, metal-free chiral photocatalysts are ideal candidates. In this work, we demonstrate that metal-free chiral carbon dots (CDs) exhibit size-dependent enantioselective photocatalytic activity. Using serine as the raw material, chiral CDs with well-defined structures and average sizes of 2.22, 3.01, 3.70, 4.77, and 7.21 nm were synthesized using the electrochemical method. These chiral CDs possess size-dependent band gaps and exhibit photoresponsive enantioselective catalytic activity toward the oxidation of dihydroxyphenylalanine (DOPA). Under light-assisted conditions, chiral CDs (L72, 500 μg/mL) exhibit high selectivity (selectivity factor: 2.07) and maintain a certain level of catalytic activity (1.34 μM/min) even at a low temperature of 5 °C. The high catalytic activity of the chiral CDs arises from their photoelectrons reducing O2 to generate O2-, as the active oxygen species for DOPA oxidation. The high enantioselectivity of the chiral CDs is attributed to their differential adsorption capabilities toward DOPA enantiomers. This study provides a new approach for designing metal-free chiral photocatalysts with high enantioselectivity.
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Affiliation(s)
- Mengling Zhang
- Macao Institute of Materials Science and Engineering (MIMSE), MUST-SUDA Joint Research Center for Advanced Functional Materials, Macau University of Science and Technology, Taipa, Macao 999078, China
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Yan Zhang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Xin Du
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Yurong Ma
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Hui Huang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Fan Liao
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Xing Fan
- Research Center for Carbon-based Electronics and Key Laboratory for the Physics and Chemistry of Nanodevices, School of Electronics, Peking University, Beijing 100871, China
| | - Jianhua Wang
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China
| | - Haiping Lin
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China
| | - Mingwang Shao
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Yang Liu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Youyong Li
- Macao Institute of Materials Science and Engineering (MIMSE), MUST-SUDA Joint Research Center for Advanced Functional Materials, Macau University of Science and Technology, Taipa, Macao 999078, China
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Zhenhui Kang
- Macao Institute of Materials Science and Engineering (MIMSE), MUST-SUDA Joint Research Center for Advanced Functional Materials, Macau University of Science and Technology, Taipa, Macao 999078, China
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
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4
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Zhao Y, Luo Y, Liu J, Zheng C, Zhao G. Multiple Hydrogen-Bonding Catalysts Enhance the Asymmetric Cyanation of Ketimines and Aldimines. Chemistry 2023; 29:e202302061. [PMID: 37463871 DOI: 10.1002/chem.202302061] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/18/2023] [Accepted: 07/18/2023] [Indexed: 07/20/2023]
Abstract
A highly enantioselective cyanation of imines (up to >99 % ee) has been developed using well-designed C2 -symmetric hydrogen bonding catalysts. The catalytic strategy was characterized with low catalyst loading (0.1-1 mol %), easily accessible catalysts with diverse functional groups, and catalytic base additives. A wide range of imines, including the challenging N-Boc and N-Cbz protected ketimines and aldimines, as well as fluoroalkylated ketimines, were investigated under mild conditions to afford the products with good to excellent yields (up to 99 % yield) and high enantioselectivity (up to >99 % ee). Control experiments revealed that the multiple hydrogen bonding catalysts enhanced the reactivity and enantioselectivity of the Strecker reaction initiated by the base.
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Affiliation(s)
- Yunhui Zhao
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, 411201, P. R. China
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecular, Ministry of Education, Hunan University of Science and Technology, Xiangtan, Hunan, 411201, P. R. China
| | - Yueyang Luo
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, 411201, P. R. China
| | - Jun Liu
- Key Laboratory of Synthetic Chemistry of Natural Substances Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Changwu Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, P. R. China
| | - Gang Zhao
- Key Laboratory of Synthetic Chemistry of Natural Substances Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
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5
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Nomura M, Begum Z, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Tokiwa S, Takeshita M, Nakano H. Thiourea fused γ-amino alcohol organocatalysts for asymmetric Mannich reaction of β-keto active methylene compounds with imines. RSC Adv 2023; 13:3715-3722. [PMID: 36756606 PMCID: PMC9891089 DOI: 10.1039/d2ra08317e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 01/18/2023] [Indexed: 01/27/2023] Open
Abstract
Catalytic functionality of new optically active thiourea fused γ-amino alcohols was examined in the asymmetric Mannich reaction of β-keto active methylene compounds with imines to afford chiral Mannich products, β-amino keto compounds, with continuous chiral centers, that are versatile synthetic intermediates for deriving various biologically active compounds. In particular, the thiourea fused γ-amino alcohols showed satisfactory catalytic activity in this reaction and afforded chiral Mannich products in excellent chemical yield (up to 88%) and stereoselectivities (up to syn : anti/93 : 7 dr, up to 99% ee).
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Affiliation(s)
- Miku Nomura
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan
| | - Zubeda Begum
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan
| | - Yuko Okuyama
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan .,Tohoku Medical and Pharmaceutical University 4-4-1 Komatsushima, Aoba-Ku Sendai 981-8558 Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Sciences, Tohoku Medical and Pharmaceutical University4-4-1 Komatsushima, Aoba-KuSendai 981-8558Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan
| | - Michio Tokiwa
- Tokiwakai Group62 Numajiri Tsuduri-Chou UchigoIwaki 973-8053Japan
| | - Suguru Tokiwa
- Tokiwakai Group62 Numajiri Tsuduri-Chou UchigoIwaki 973-8053Japan
| | | | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan
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6
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Begum Z, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Tokiwa S, Takeshita M, Nakano H. New boro amino amide organocatalysts for asymmetric cross aldol reaction of ketones with carbonyl compounds. RSC Adv 2023; 13:888-894. [PMID: 36686933 PMCID: PMC9811241 DOI: 10.1039/d2ra06272k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 12/20/2022] [Indexed: 01/05/2023] Open
Abstract
Distinct types of new boron fused primary amino amide organocatalysts were designed and synthesized from commercially available amino acids. Their catalytic activities were investigated in asymmetric crossed aldol reaction of ketones with aromatic aldehydes to afford the corresponding chiral anti-aldol adducts with good chemical yields, moderate diastereoselectivity and good to excellent enantioselectivities (up to 94% yields, up to 90 : 10 dr, up to 94% ee).
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Affiliation(s)
- Zubeda Begum
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology27-1 Mizumoto-choMuroran 050-8585Japan
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology27-1 Mizumoto-choMuroran 050-8585Japan
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University4-4-1 Komatsushima, Aoba-KuSendai 981-8558Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Sciences, Tohoku University6-3 Aoba, Aramaki, Aoba-KuSendai 980-8578Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology27-1 Mizumoto-choMuroran 050-8585Japan
| | - Michio Tokiwa
- Tokiwakai Group62 Numajiri Tsuduri-Chou UchigoIwaki 973-8053Japan
| | - Suguru Tokiwa
- Tokiwakai Group62 Numajiri Tsuduri-Chou UchigoIwaki 973-8053Japan
| | | | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology27-1 Mizumoto-choMuroran 050-8585Japan
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7
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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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8
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Organocatalytic Synthesis of α-Aminonitriles: A Review. Catalysts 2022. [DOI: 10.3390/catal12101149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
α-Aminonitriles, which have anticancer, antibacterial, antiviral, and antifungal properties, have played an important role in pharmacology. Furthermore, they can also be used to synthesize natural and unnatural amino acids. The main bottleneck in the commercialization of these products is their large-scale production with controlled chirality. A variety of methods have been used to synthesize α-aminonitriles. Among other reported methods for preparing α-aminonitriles, the Strecker reaction is considered appropriate. Recent developments, however, have enabled the α-cyanation of tertiary and secondary amines by functionalizing the carbon–hydrogen (C–H) bond as an attractive alternative procedure for the preparation of α-aminonitriles in the presence of an oxidant and a cyanide source. In most cases, these reactions are catalyzed by transition metal catalysts, such as Fe, Cu, Rh, V, Au, Ru, Mo, Pt, Re, and Co, or by photocatalysts. As an alternative, organocatalysts can also be used to produce aminonitriles. Although there have been numerous reviews on the preparation of α-aminonitriles, no such reviews have been published specifically on the organocatalyzed synthesis of α-aminonitriles. Organocatalysis plays a significant role in synthesizing α-aminonitriles via Strecker-type reactions and cross dehydrogenative coupling reactions (CDC). In this mini review, we discuss the organocatalyzed synthesis of these molecules. A review of new organocatalysts for the synthesis of aminonitriles is expected to provide insight into the development of new industrial catalysts.
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9
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Ohmatsu K, Morita Y, Kiyokawa M, Hoshino K, Ooi T. Catalytic Asymmetric Strecker Reaction of Ketoimines with Potassium Cyanide. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kohsuke Ohmatsu
- Institute of Transformative Bio-Molecules (WPI-ITbM) Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8601 Japan
| | - Yusuke Morita
- Institute of Transformative Bio-Molecules (WPI-ITbM) Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8601 Japan
| | - Mari Kiyokawa
- Institute of Transformative Bio-Molecules (WPI-ITbM) Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8601 Japan
| | - Kimihiro Hoshino
- Institute of Transformative Bio-Molecules (WPI-ITbM) Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8601 Japan
| | - Takashi Ooi
- Institute of Transformative Bio-Molecules (WPI-ITbM) Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8601 Japan
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10
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Austermuehle BJ, Collins ES, Hamaker CG, Hitchcock SR. Synthetic preparation of N-alkyl and N-aryl arenesulfinamides using an arenesulfinic acid-CDI driven approach. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1981943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Erin S. Collins
- Department of Chemistry, Illinois State University, Normal, IL, USA
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11
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Junge T, Titze M, Frey W, Peters R. Asymmetric Hydrocyanation of
N
‐Phosphinoyl Aldimines with Acetone Cyanohydrin by Cooperative Lewis Acid/Onium Salt/Brønsted Base Catalysis. ChemCatChem 2021. [DOI: 10.1002/cctc.202001921] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Thorsten Junge
- Universität Stuttgart Institut für Organische Chemie Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Marvin Titze
- Universität Stuttgart Institut für Organische Chemie Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Frey
- Universität Stuttgart Institut für Organische Chemie Pfaffenwaldring 55 70569 Stuttgart Germany
| | - René Peters
- Universität Stuttgart Institut für Organische Chemie Pfaffenwaldring 55 70569 Stuttgart Germany
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12
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Chinnaraja E, Arunachalam R, Samanta K, Natarajan R, Subramanian PS. Enantioselective Michael Addition Reaction Catalysed by Enantiopure Binuclear Nickel(II) Close‐Ended Helicates. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901350] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Eswaran Chinnaraja
- Inorganic Materials and Catalysis DivisionCSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI) Bhavnagar 364 002, Gujarat India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Rajendran Arunachalam
- Inorganic Materials and Catalysis DivisionCSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI) Bhavnagar 364 002, Gujarat India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Krishanu Samanta
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
- Organic & Medicinal Chemistry DivisionCSIR-Indian Institute of Chemical Biology Kolkata India
| | - Ramalingam Natarajan
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
- Organic & Medicinal Chemistry DivisionCSIR-Indian Institute of Chemical Biology Kolkata India
| | - Palani S. Subramanian
- Inorganic Materials and Catalysis DivisionCSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI) Bhavnagar 364 002, Gujarat India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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13
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Alirezvani Z, Dekamin MG, Valiey E. New Hydrogen-Bond-Enriched 1,3,5-Tris(2-hydroxyethyl) Isocyanurate Covalently Functionalized MCM-41: An Efficient and Recoverable Hybrid Catalyst for Convenient Synthesis of Acridinedione Derivatives. ACS OMEGA 2019; 4:20618-20633. [PMID: 31858048 PMCID: PMC6906789 DOI: 10.1021/acsomega.9b02755] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 10/28/2019] [Indexed: 05/03/2023]
Abstract
A new nano-ordered 1,3,5-tris(2-hydroxyethyl) isocyanurate-1,3-propylene covalently functionalized MCM-41 (MCM-41-Pr-THEIC) was designed and prepared at room temperature through a simple procedure. According to various microscopic, spectroscopic, or thermal methods and techniques, the correlation of the catalytic performance of the hybrid mesoporous MCM-41-Pr-THEIC to its structural characteristics was fully confirmed. The new MCM-41-Pr-THEIC organosilica nanomaterials were successfully investigated as a solid mild nanocatalyst through hydrogen-bonding activation provided by its organic moiety, for the pseudo-four-component condensation of dimedone, aldehydes, and ammonium acetate or p-toluidine to afford the corresponding acridinedione derivatives under green conditions. Furthermore, the introduced nanocatalyst could be reused at least four times with negligible loss of its activity, indicating the good stability and high activity of the new hybrid organosilica.
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Affiliation(s)
- Zahra Alirezvani
- Pharmaceutical and Heterocyclic
Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran
| | - Mohammad G. Dekamin
- Pharmaceutical and Heterocyclic
Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran
| | - Ehsan Valiey
- Pharmaceutical and Heterocyclic
Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran
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14
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Kang KT, Park SH, Ryu DH. Enantioselective Strecker and Allylation Reactions with Aldimines Catalyzed by Chiral Oxazaborolidinium Ions. Org Lett 2019; 21:6679-6683. [PMID: 31429578 DOI: 10.1021/acs.orglett.9b02280] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Chiral oxazaborolidinium ion (COBI)-catalyzed enantioselective nucleophilic addition reactions of aldimines using tributyltin cyanide and allyltributylstannane have been developed. Various α-aminonitriles and homoallylic amines were synthesized in high yield (up to 98%) with high to excellent enantioselectivity (up to 99% ee). A rational mechanistic model for the complex of COBI and aldimine is provided to account for these enantioselective reactions.
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Affiliation(s)
- Ki-Tae Kang
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Sang Hyun Park
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Do Hyun Ryu
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
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15
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Hatano M, Nishio K, Mochizuki T, Nishikawa K, Ishihara K. Highly Active Chiral Dilithium(I) Binaphthyldisulfonate Catalysts for Enantio- and Chemoselective Strecker-Type Reactions. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02739] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Manabu Hatano
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Kosuke Nishio
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Takuya Mochizuki
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Keisuke Nishikawa
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
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16
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Ansari A, Gupta N, Jakhar A, Khan NUH, Kureshy RI. Quinine Thiourea Immobilized on SBA-15 as an Efficient Recyclable Catalyst for Asymmetric Strecker Reaction of Isatin N
-protected Ketimines. ChemistrySelect 2017. [DOI: 10.1002/slct.201702850] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Amamudin Ansari
- Inorganic Materials and Catalysis Division; CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg; Bhavnagar- 364 002 Gujarat India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg; Bhavnagar- 364 002 Gujarat India
| | - Naveen Gupta
- Inorganic Materials and Catalysis Division; CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg; Bhavnagar- 364 002 Gujarat India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg; Bhavnagar- 364 002 Gujarat India
| | - Ajay Jakhar
- Inorganic Materials and Catalysis Division; CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg; Bhavnagar- 364 002 Gujarat India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg; Bhavnagar- 364 002 Gujarat India
| | - Noor-ul H. Khan
- Inorganic Materials and Catalysis Division; CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg; Bhavnagar- 364 002 Gujarat India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg; Bhavnagar- 364 002 Gujarat India
| | - Rukhsana I. Kureshy
- Inorganic Materials and Catalysis Division; CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg; Bhavnagar- 364 002 Gujarat India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg; Bhavnagar- 364 002 Gujarat India
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17
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Takamatsu N, Aiba S, Yamada T, Tokunaga Y, Kawasaki T. Highly Stereoselective Strecker Synthesis Induced by a Slight Modification of Benzhydrylamine from Achiral to Chiral. Chemistry 2017; 24:1304-1310. [DOI: 10.1002/chem.201704033] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Naoya Takamatsu
- Department of Materials Science and Engineering; University of Fukui, Bunkyo; Fukui 910-8507 Japan
| | - Shohei Aiba
- Department of Materials Science and Engineering; University of Fukui, Bunkyo; Fukui 910-8507 Japan
| | - Takuya Yamada
- Department of Materials Science and Engineering; University of Fukui, Bunkyo; Fukui 910-8507 Japan
| | - Yuji Tokunaga
- Department of Materials Science and Engineering; University of Fukui, Bunkyo; Fukui 910-8507 Japan
| | - Tsuneomi Kawasaki
- Department of Applied Chemistry; Tokyo University of Science, Kagurazaka, Shinjuku-ku; Tokyo 162-8601 Japan
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18
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Konnert L, Lamaty F, Martinez J, Colacino E. Recent Advances in the Synthesis of Hydantoins: The State of the Art of a Valuable Scaffold. Chem Rev 2017. [PMID: 28644621 DOI: 10.1021/acs.chemrev.7b00067] [Citation(s) in RCA: 117] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The review highlights the hydantoin syntheses presented from the point of view of the preparation methods. Novel synthetic routes to various hydantoin structures, the advances brought to the classical methods in the aim of producing more sustainable and environmentally friendly procedures for the preparation of these biomolecules, and a critical comparison of the different synthetic approaches developed in the last twelve years are also described. The review is composed of 95 schemes, 8 figures and 528 references for the last 12 years and includes the description of the hydantoin-based marketed drugs and clinical candidates.
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Affiliation(s)
- Laure Konnert
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS - Universités Montpellier - ENSCM , Place E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
| | - Frédéric Lamaty
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS - Universités Montpellier - ENSCM , Place E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
| | - Jean Martinez
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS - Universités Montpellier - ENSCM , Place E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
| | - Evelina Colacino
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS - Universités Montpellier - ENSCM , Place E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
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19
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Otocka S, Kwiatkowska M, Madalińska L, Kiełbasiński P. Chiral Organosulfur Ligands/Catalysts with a Stereogenic Sulfur Atom: Applications in Asymmetric Synthesis. Chem Rev 2017; 117:4147-4181. [PMID: 28191933 DOI: 10.1021/acs.chemrev.6b00517] [Citation(s) in RCA: 229] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Asymmetric synthesis, in which chiral organocatalysts or metal complexes with chiral ligands are used, has become the most valuable methodology for the preparation of enantiomerically pure organic compounds. Among such catalysts/ligands, a growing number constitute various organosulfur compounds. This Review provides comprehensive and critical information on the plethora of sulfur-based chiral ligands and organocatalysts used in asymmetric synthesis, which have been published within the last 15 years. However, it is confined to the presentation of only those chiral catalysts/ligands that possess a stereogenic sulfur atom and includes sulfoxides, sulfinamides, N-sulfinyl ureas, sulfoximines, and some related S-chiral derivatives.
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Affiliation(s)
- Sylwia Otocka
- Department of Heteroorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences , Sienkiewicza 112, 90-363 Łódź, Poland.,Department of Structural Biology, Medical University of Łódź , Żeligowskiego 7/9, 90-752 Łódź, Poland
| | - Małgorzata Kwiatkowska
- Department of Heteroorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences , Sienkiewicza 112, 90-363 Łódź, Poland
| | - Lidia Madalińska
- Department of Heteroorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences , Sienkiewicza 112, 90-363 Łódź, Poland
| | - Piotr Kiełbasiński
- Department of Heteroorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences , Sienkiewicza 112, 90-363 Łódź, Poland
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20
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Shen YY, Li Y, Wang B, Li X. Anion binding by tert-butanesulfinamide based phenol receptors. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.12.090] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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21
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Affiliation(s)
- Nobuhito Kurono
- Department of Chemistry, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka 431-3192, Japan
| | - Takeshi Ohkuma
- Division of Applied Chemistry and Frontier Chemistry Center, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
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22
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Choudhary MK, Rao Ganga VS, Menapara T, Kureshy RI, Khan NUH, Abdi SHR, Suresh E. Cascade reaction for the construction of CF3 containing tetrasubstituted furan ring. RSC Adv 2016. [DOI: 10.1039/c6ra19782e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Activated olefins are well known nucleophiles, but proton abstraction from the substituted α-methyl group in nitroolefin is rare.
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Affiliation(s)
- Manoj K. Choudhary
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Venkata Subba Rao Ganga
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Tusharkumar Menapara
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Rukhsana I. Kureshy
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Noor-ul H. Khan
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Sayed H. R. Abdi
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Eringathodi Suresh
- Academy of Scientific and Innovative Research (AcSIR)
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- Bhavnagar-364 002
- India
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23
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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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24
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Saravanan S, Khan NUH, Jakhar A, Ansari A, Kureshy RI, Abdi SHR, Kumar G. Enantioselective Strecker reaction of aldimines using potassium cyanide catalyzed by a recyclable macrocyclic V(v) salen complex. RSC Adv 2015. [DOI: 10.1039/c5ra18914d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Chiral dimeric V(v) salen complexes have been synthesized and used as catalysts for asymmetric Strecker reaction of N-benzylimines using both KCN to produce chiral α-amino nitrile. The catalyst was recycled upto five times without loss in its activity.
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Affiliation(s)
- S. Saravanan
- Inorganic Materials and Catalysis Division
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research
| | - Noor-ul H. Khan
- Inorganic Materials and Catalysis Division
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research
| | - Ajay Jakhar
- Inorganic Materials and Catalysis Division
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research
| | - Amamudin Ansari
- Inorganic Materials and Catalysis Division
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research
| | - Rukhsana I. Kureshy
- Inorganic Materials and Catalysis Division
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research
| | - Sayed H. R. Abdi
- Inorganic Materials and Catalysis Division
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research
| | - Gaurav Kumar
- Inorganic Materials and Catalysis Division
- CSIR-Central Salt and Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research
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25
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Khalafi-Nezhad A, Nourisefat M, Panahi F. l-Cysteine functionalized magnetic nanoparticles (LCMNP): a novel magnetically separable organocatalyst for one-pot synthesis of 2-amino-4H-chromene-3-carbonitriles in water. Org Biomol Chem 2015; 13:7772-9. [DOI: 10.1039/c5ob01030f] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Magnetic nanoparticles were functionalized with l-cysteine using a new and efficient method and introduced as a novel magnetically separable organocatalyst.
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Affiliation(s)
| | - Maryam Nourisefat
- Department of Chemistry
- College of Sciences
- Shiraz University
- Shiraz
- Iran
| | - Farhad Panahi
- Department of Chemistry
- College of Sciences
- Shiraz University
- Shiraz
- Iran
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26
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Dinér P, Sadhukhan A, Blomkvist B. Chiral Sulfinamides as Highly Enantioselective Organocatalysts. ChemCatChem 2014. [DOI: 10.1002/cctc.201402558] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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27
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Kumar M, Kureshy RI, Saravanan S, Verma S, Jakhar A, Khan NUH, Abdi SHR, Bajaj HC. Unravelling a New Class of Chiral Organocatalyst for Asymmetric Ring-Opening Reaction of Meso Epoxides with Anilines. Org Lett 2014; 16:2798-801. [DOI: 10.1021/ol500699c] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Manish Kumar
- Discipline of Inorganic Materials and Catalysis and ‡Academy of Scientific and Innovative Research, Central Salt and Marine Chemicals Research Institute (CSMCRI), Council of Scientific & Industrial Research (CSIR), G. B. Marg, Bhavnagar 364 002 Gujarat, India
| | - Rukhsana I. Kureshy
- Discipline of Inorganic Materials and Catalysis and ‡Academy of Scientific and Innovative Research, Central Salt and Marine Chemicals Research Institute (CSMCRI), Council of Scientific & Industrial Research (CSIR), G. B. Marg, Bhavnagar 364 002 Gujarat, India
| | - S. Saravanan
- Discipline of Inorganic Materials and Catalysis and ‡Academy of Scientific and Innovative Research, Central Salt and Marine Chemicals Research Institute (CSMCRI), Council of Scientific & Industrial Research (CSIR), G. B. Marg, Bhavnagar 364 002 Gujarat, India
| | - Shailesh Verma
- Discipline of Inorganic Materials and Catalysis and ‡Academy of Scientific and Innovative Research, Central Salt and Marine Chemicals Research Institute (CSMCRI), Council of Scientific & Industrial Research (CSIR), G. B. Marg, Bhavnagar 364 002 Gujarat, India
| | - Ajay Jakhar
- Discipline of Inorganic Materials and Catalysis and ‡Academy of Scientific and Innovative Research, Central Salt and Marine Chemicals Research Institute (CSMCRI), Council of Scientific & Industrial Research (CSIR), G. B. Marg, Bhavnagar 364 002 Gujarat, India
| | - Noor-ul H. Khan
- Discipline of Inorganic Materials and Catalysis and ‡Academy of Scientific and Innovative Research, Central Salt and Marine Chemicals Research Institute (CSMCRI), Council of Scientific & Industrial Research (CSIR), G. B. Marg, Bhavnagar 364 002 Gujarat, India
| | - Sayed H. R. Abdi
- Discipline of Inorganic Materials and Catalysis and ‡Academy of Scientific and Innovative Research, Central Salt and Marine Chemicals Research Institute (CSMCRI), Council of Scientific & Industrial Research (CSIR), G. B. Marg, Bhavnagar 364 002 Gujarat, India
| | - Hari C. Bajaj
- Discipline of Inorganic Materials and Catalysis and ‡Academy of Scientific and Innovative Research, Central Salt and Marine Chemicals Research Institute (CSMCRI), Council of Scientific & Industrial Research (CSIR), G. B. Marg, Bhavnagar 364 002 Gujarat, India
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