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Diana-Rivero R, Rivero DS, García-Martín A, Carrillo R, Tejedor D. Water as a Reactant: DABCO-Catalyzed Hydration of Activated Alkynes for the Synthesis of Divinyl Ethers. J Org Chem 2024; 89:15068-15074. [PMID: 39344303 PMCID: PMC11494655 DOI: 10.1021/acs.joc.4c01815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2024] [Revised: 09/19/2024] [Accepted: 09/24/2024] [Indexed: 10/01/2024]
Abstract
A practical and efficient addition of water to readily available activated alkynes delivering divinyl ethers is reported. The reaction proceeds with full atom economy in a very straightforward experimental procedure. Additionally, of all the tertiary amines studied to catalyze the reaction, the best and most efficient is clearly DABCO (1,4-diazabicyclo[2.2.2]octane). Finally, the solvent choice is crucial for the efficiency of this process and we have found that the reaction is best performed in wet dichloromethane for propiolic esters and alkynones, and in wet acetonitrile for propiolamides.
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Affiliation(s)
- Raquel Diana-Rivero
- Instituto de Productos Naturales y
Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Astrofísico Francisco
Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
| | - David S. Rivero
- Instituto de Productos Naturales y
Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Astrofísico Francisco
Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Alba García-Martín
- Instituto de Productos Naturales y
Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Astrofísico Francisco
Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Romen Carrillo
- Instituto de Productos Naturales y
Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Astrofísico Francisco
Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
| | - David Tejedor
- Instituto de Productos Naturales y
Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Astrofísico Francisco
Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
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2
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Lahdenperä ASK, Dhankhar J, Davies DJ, Lam NYS, Bacoş PD, de la Vega-Hernández K, Phipps RJ. A chiral hydrogen atom abstraction catalyst for the enantioselective epimerization of meso-diols. Science 2024; 386:42-49. [PMID: 39361751 DOI: 10.1126/science.adq8029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Accepted: 08/29/2024] [Indexed: 10/05/2024]
Abstract
Hydrogen atom abstraction is an important elementary chemical process but is very difficult to carry out enantioselectively. We have developed catalysts, readily derived from the Cinchona alkaloid family of natural products, which can achieve this by virtue of their chiral amine structure. The catalyst, following single-electron oxidation, desymmetrizes meso-diols by selectively abstracting a hydrogen atom from one carbon center, which then regains a hydrogen atom by abstraction from a thiol. This results in an enantioselective epimerization process, forming the chiral diastereomer with high enantiomeric excess. Cyclic and acyclic 1,2-diols are compatible, as are acyclic 1,3-diols. Additionally, we demonstrate the viability of combining our approach with carbon-carbon bond formation in Giese addition. Given the increasing number of synthetic methods involving hydrogen atom transfer steps, we anticipate that this work will have a broad impact in the field of enantioselective radical chemistry.
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Affiliation(s)
- Antti S K Lahdenperä
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK
| | - Jyoti Dhankhar
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK
| | - Daniel J Davies
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK
| | - Nelson Y S Lam
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK
| | - P David Bacoş
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK
| | | | - Robert J Phipps
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK
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3
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Masclef J, Prunet J, Schmidt BVKJ. Synthesis of PEG-Polycycloether Block Copolymers: Poloxamer Mimics Containing a Rigid Helical Block. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2310277. [PMID: 38520722 PMCID: PMC11165552 DOI: 10.1002/advs.202310277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/23/2024] [Indexed: 03/25/2024]
Abstract
Poloxamers are amphiphilic block copolymers consisting of poly(ethylene glycol) (PEG) and poly(propylene glycol) segments. Their self-assembly and interfacial properties are tied to the relative hydrophilicity and hydrophobicity of each block and can therefore be adjusted by changing block lengths. Here, a series of PEG-polycycloether block copolymers is synthesized that have the same structure as a poloxamer, but they encompass a rigid polycyclic backbone as the hydrophobic block. A variety of polymer structures are synthesized, for example diblock or triblock architectures, with/without olefinic units, atactic or isotactic backbone, and different block lengths. Due to their amphiphilicity, self-assembly into spherical aggregates (diameters ranging from 64 to 132 nm) at low concentrations (critical aggregation concentration as low as 0.04 mg mL-1) is observed in water. Low surface tensions (as low as 26.7 mN m-1) are observed as well as the formation of stable high internal phase emulsions (HIPEs) irrespective of the oil/water ratio. This contrasts with the properties of the commonly used poloxamers P188 or P407 and illustrates the significance of the rigid polycycloether block. These new colloidal properties offer new prospects for applications in emulsion formulations for biomedicine, cosmetics, and the food industry.
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Affiliation(s)
| | - Joëlle Prunet
- School of Chemistry, Joseph Black BuildingUniversity of GlasgowGlasgowG12 8QQUK
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4
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Hou J, Chevallier-Michaud S, Jean M, Favre L, Hérault D, Bressy C. Physical Separation of Enantiomeric Products by Compartmentalized Parallel Kinetic Resolution. J Am Chem Soc 2023; 145:27236-27241. [PMID: 38079226 DOI: 10.1021/jacs.3c12120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Accessing each enantiomer of a chiral molecule starting from a racemic mixture remains a daunting challenge in chemistry. Indeed, until now, only a few solutions exist to separate enantiomers of an equimolar mixture of a chiral precursor. In this study, we establish a new strategy to prepare simultaneously and physically separate both enantioenriched enantiomers of a molecule starting from a racemic substrate. This process combines two enantiomeric catalytic systems, working in parallel, and separation by an achiral membrane with selective permeability. This unprecedented system was successfully applied to the simultaneous preparation of both enantiomers of chiral 1,2-diols starting from racemic epoxides using Jacobsen's hydrolytic kinetic resolution (HKR) in parallel.
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Affiliation(s)
- Jingke Hou
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, AMUTech, Marseille 13397, France
| | | | - Marion Jean
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, AMUTech, Marseille 13397, France
| | - Luc Favre
- Aix Marseille Univ, CNRS, IM2NP, AMUTech, Marseille 13397, France
| | - Damien Hérault
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, AMUTech, Marseille 13397, France
| | - Cyril Bressy
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, AMUTech, Marseille 13397, France
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5
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Chen X, Patel K, Marek I. Stereoselective Construction of Tertiary Homoallyl Alcohols and Ethers by Nucleophilic Substitution at Quaternary Carbon Stereocenters. Angew Chem Int Ed Engl 2023; 62:e202212425. [PMID: 36413111 PMCID: PMC10107121 DOI: 10.1002/anie.202212425] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 11/13/2022] [Accepted: 11/22/2022] [Indexed: 11/24/2022]
Abstract
An efficient method for the stereoselective construction of tertiary C-O bonds via a stereoinvertive nucleophilic substitution at the quaternary carbon stereocenter of cyclopropyl carbinol derivatives using water, alcohols and phenols as nucleophiles has been developed. This substitution reaction proceeds under mild conditions and tolerates several functional groups, providing a new access to the stereoselective formation of highly congested tertiary homoallyl alcohols and ethers.
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Affiliation(s)
- Xu Chen
- Schulich Faculty of ChemistryTechnion – Israel Institute of Technology Technion CityHaifa3200009Israel
| | - Kaushalendra Patel
- Schulich Faculty of ChemistryTechnion – Israel Institute of Technology Technion CityHaifa3200009Israel
| | - Ilan Marek
- Schulich Faculty of ChemistryTechnion – Israel Institute of Technology Technion CityHaifa3200009Israel
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6
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Escot L, González-Granda S, Gotor-Fernández V, Lavandera I. Combination of gold and redox enzyme catalysis to access valuable enantioenriched aliphatic β-chlorohydrins. Org Biomol Chem 2022; 20:9650-9658. [PMID: 36413183 DOI: 10.1039/d2ob01953a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The synthesis of enantioenriched β-chlorohydrins is highly appealing due to their relevance as building-blocks in organic synthesis. However, the approximation to aliphatic derivatives is particularly challenging due to the difficulties to get access to the α-chloroketone precursors. Herein, we propose a straightforward and scalable approach combining in a concurrent manner gold(I) and redox enzyme catalysis through a hydration-bioreduction cascade. A total of nine aliphatic β-chlorohydrins bearing different functional groups were obtained with very high yields (63-88%) and stereoselectivities (>99% ee).
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Affiliation(s)
- Lorena Escot
- Organic and Inorganic Chemistry Department, Universidad de Oviedo, 33006 Oviedo, Asturias, Spain.
| | - Sergio González-Granda
- Organic and Inorganic Chemistry Department, Universidad de Oviedo, 33006 Oviedo, Asturias, Spain.
| | - Vicente Gotor-Fernández
- Organic and Inorganic Chemistry Department, Universidad de Oviedo, 33006 Oviedo, Asturias, Spain.
| | - Iván Lavandera
- Organic and Inorganic Chemistry Department, Universidad de Oviedo, 33006 Oviedo, Asturias, Spain.
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7
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Zuo S, Zheng S, Liu J, Zuo A. Mechanochemical synthesis of unsymmetrical salens for the preparation of Co-salen complexes and their evaluation as catalysts for the synthesis of α-aryloxy alcohols via asymmetric phenolic kinetic resolution of terminal epoxides. Beilstein J Org Chem 2022; 18:1416-1423. [PMID: 36300012 PMCID: PMC9577384 DOI: 10.3762/bjoc.18.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 09/07/2022] [Indexed: 11/23/2022] Open
Abstract
In this paper, we report the mechanochemical synthesis of unsymmetrical salens using grinding and ball milling technologies, respectively, both of which were afforded in good yield. The chelating effect of the unsymmetrical salens with zinc, copper, and cobalt was studied and the chiral Co-salen complex 2f was obtained in 98% yield. Hydrolytic kinetic resolution (HKR) of epichlorohydrin with water catalyzed by complex 2f (0.5 mol %) was explored and resulted in 98% ee, suggesting complex 2f could serve as an enantioselective catalyst for the asymmetric ring opening of terminal epoxides by phenols. A library of α-aryloxy alcohols 3 was thereafter synthesized in good yield and high ee using 2f via the phenolic KR of epichlorohydrin.
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Affiliation(s)
- Shengli Zuo
- State Key Laboratory of Chemical Resource Engineering, Department of Applied Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shuxiang Zheng
- State Key Laboratory of Chemical Resource Engineering, Department of Applied Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianjun Liu
- State Key Laboratory of Chemical Resource Engineering, Department of Applied Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ang Zuo
- Department of Pharmaceutical Sciences, College of Pharmacy and UICentre, University of Illinois at Chicago, Chicago, Illinois 60612, United States
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8
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Kaya B, Karakurt T, Şahin O, Ülküseven B. Four and six-coordinated cobalt complexes based on thiosemicarbazone. Formation, experimental and theoretical characterization. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Sheoran A, Kaur J, Agarwal J, Singhal S. Ring Opening of Epoxides and Aziridines with Benzotriazoles Using Magnetically Retrievable Graphene Based (CoFe@rGO) Nanohybrid. ChemistrySelect 2021. [DOI: 10.1002/slct.202101268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ankush Sheoran
- Department of Chemistry & Centre of Advanced Studies in Chemistry Panjab University Chandigarh India- 160014
| | - Jaspreet Kaur
- Energy Research Centre Panjab University Chandigarh India- 160014
| | - Jyoti Agarwal
- Department of Chemistry & Centre of Advanced Studies in Chemistry Panjab University Chandigarh India- 160014
| | - Sonal Singhal
- Department of Chemistry & Centre of Advanced Studies in Chemistry Panjab University Chandigarh India- 160014
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10
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Ondari ME, Klosin J, Kruper WR, Lysenko I, Thomas PJ, Cheng K, Abboud KA, Kruper WJ. Diol-Ritter Reaction: Regio- and Stereoselective Synthesis of Protected Vicinal Aminoalcohols and Mechanistic Aspects of Diol Monoester Disproportionation. J Org Chem 2021; 87:2063-2074. [PMID: 34581583 DOI: 10.1021/acs.joc.1c01475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The well-known epoxide-Ritter reaction generally affords oxazolines with poor to average regioselectivity. Herein, a mechanism-based study of the less known diol-Ritter reaction has provided a highly regioselective procedure for the synthesis of 1-vic-amido-2-esters from either terminal epoxides or 1,2-diols via Lewis acid-catalyzed monoesterification. When treated with a stoichiometric Lewis acid catalyst (BF3), these diol monoesters form dioxonium cation intermediates that are ring-opened with nitrile nucleophiles to form nitrilium intermediates, which undergo rapid and irreversible hydration to give the desired amidoesters. Diester byproduct formation is irreversible and appears to occur through disproportionation of diol monoester. With chiral epoxide starting materials, the formation of amidoester occurs with retention of configuration and no apparent erosion of optical purity as determined by single-crystal X-ray analyses and chiral chromatography, respectively. The direct access to chiral vic-amidoesters is especially practical with regard to the synthesis of antibacterial oxazolidinone analogues of the Zyvox antimicrobial family.
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Affiliation(s)
- Mark E Ondari
- Corteva Agriscience, 1710 Building, Midland, Michigan 48674, United States
| | - Jerzy Klosin
- Corporate R&D, The Dow Chemical Company, 1776 Building, Midland, Michigan 48674, United States
| | - William R Kruper
- Corteva Agriscience, 1710 Building, Midland, Michigan 48674, United States
| | - Ivan Lysenko
- Michigan State University, St Andrews, Midland, Michigan 48674, United States
| | | | - Kevin Cheng
- Michigan State University, St Andrews, Midland, Michigan 48674, United States
| | - Khalil A Abboud
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - William J Kruper
- Michigan State University, St Andrews, Midland, Michigan 48674, United States
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11
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Two (Chemo)-Enzymatic Cascades for the Production of Opposite Enantiomers of Chiral Azidoalcohols. Catalysts 2021. [DOI: 10.3390/catal11080982] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Multi-step cascade reactions have gained increasing attention in the biocatalysis field in recent years. In particular, multi-enzymatic cascades can achieve high molecular complexity without workup of reaction intermediates thanks to the enzymes’ intrinsic selectivity; and where enzymes fall short, organo- or metal catalysts can further expand the range of possible synthetic routes. Here, we present two enantiocomplementary (chemo)-enzymatic cascades composed of either a styrene monooxygenase (StyAB) or the Shi epoxidation catalyst for enantioselective alkene epoxidation in the first step, coupled with a halohydrin dehalogenase (HHDH)-catalysed regioselective epoxide ring opening in the second step for the synthesis of chiral aliphatic non-terminal azidoalcohols. Through the controlled formation of two new stereocenters, corresponding azidoalcohol products could be obtained with high regioselectivity and excellent enantioselectivity (99% ee) in the StyAB-HHDH cascade, while product enantiomeric excesses in the Shi-HHDH cascade ranged between 56 and 61%.
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12
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Solís‐Muñana P, Salam J, Ren CZ, Carr B, Whitten AE, Warr GG, Chen JL. An Amphiphilic (salen)Co Complex – Utilizing Hydrophobic Interactions to Enhance the Efficiency of a Cooperative Catalyst. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100494] [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)
- Pablo Solís‐Muñana
- Centre for Biomedical and Chemical Sciences School of Science Auckland University of Technology 34 St Paul St 1010 Auckland New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology 6011 Wellington New Zealand
| | - Joanne Salam
- Centre for Biomedical and Chemical Sciences School of Science Auckland University of Technology 34 St Paul St 1010 Auckland New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology 6011 Wellington New Zealand
| | - Chloe Z.‐J. Ren
- Centre for Biomedical and Chemical Sciences School of Science Auckland University of Technology 34 St Paul St 1010 Auckland New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology 6011 Wellington New Zealand
| | - Bronte Carr
- Centre for Biomedical and Chemical Sciences School of Science Auckland University of Technology 34 St Paul St 1010 Auckland New Zealand
| | - Andrew E. Whitten
- Australian Nuclear Science and Technology Organisation (ANSTO) New Illawarra Rd 2234 Lucas Heights, NSW Australia
| | - Gregory G. Warr
- School of Chemistry The University of Sydney 2006 Sydney New South Wales Australia
| | - Jack L.‐Y. Chen
- Centre for Biomedical and Chemical Sciences School of Science Auckland University of Technology 34 St Paul St 1010 Auckland New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology 6011 Wellington New Zealand
- Department of Biotechnology, Chemistry and Pharmaceutical Sciences Università degli Studi di Siena Via Aldo Moro 53100 Siena Italy
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13
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Abstract
Symmetric organic compounds are generally obtained inexpensively, and therefore they can be attractive building blocks for the total synthesis of various pharmaceuticals and natural products. The drawback is that discriminating the identical functional groups in the symmetric compounds is difficult. Water is the most environmentally benign and inexpensive solvent. However, successful organic reactions in water are rather limited due to the hydrophobicity of organic compounds in general. Therefore, desymmetrization reactions in aqueous media are expected to offer versatile strategies for the synthesis of a variety of significant organic compounds. This review focuses on the recent progress of desymmetrization reactions of symmetric organic compounds in aqueous media without utilizing enzymes.
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14
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Schulz E. Chiral Cobalt-Salen Complexes: Ubiquitous Species in Asymmetric Catalysis. CHEM REC 2021; 21:427-439. [PMID: 33496387 DOI: 10.1002/tcr.202000166] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/13/2021] [Accepted: 01/14/2021] [Indexed: 11/09/2022]
Abstract
Since the discovery of their extraordinary reactivity in the hydrolytic kinetic resolution of terminal epoxides about twenty years ago, chiral cobalt-salen complexes have been shown to be essential for many other asymmetric catalytic reactions. This account summarizes the inspiring works dedicated to the discovery of their new reactivity and their mode of action, as well as the new processes towards the optimization of their cooperativity for bimetallic activation and the implementation of their effective immobilization, including also our contribution on these topics.
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Affiliation(s)
- Emmanuelle Schulz
- Université Paris Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay, 91405, Orsay, France
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15
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Khan I, Ibrar A, Zaib S. Alkynoates as Versatile and Powerful Chemical Tools for the Rapid Assembly of Diverse Heterocycles under Transition-Metal Catalysis: Recent Developments and Challenges. Top Curr Chem (Cham) 2021; 379:3. [PMID: 33398642 DOI: 10.1007/s41061-020-00316-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 11/16/2020] [Indexed: 12/15/2022]
Abstract
Heterocycles, heteroaromatics and spirocyclic entities are ubiquitous components of a wide plethora of synthetic drugs, biologically active natural products, marketed pharmaceuticals and agrochemical targets. Recognizing their high proportion in drugs and rich pharmacological potential, these invaluable structural motifs have garnered significant interest, thus enabling the development of efficient catalytic methodologies providing access to architecturally complex and diverse molecules with high atom-economy and low cost. These chemical processes not only allow the formation of diverse heterocycles but also utilize a range of flexible and easily accessible building units in a single operation to discover diversity-oriented synthetic approaches. Alkynoates are significantly important, diverse and powerful building blocks in organic chemistry due to their unique and inherent properties such as the electronic bias on carbon-carbon triple bonds posed by electron-withdrawing groups or the metallic coordination site provided by carbonyl groups. The present review highlights the comprehensive picture of the utility of alkynoates (2007-2019) for the synthesis of various heterocycles (> 50 types) using transition-metal catalysts (Ru, Rh, Pd, Ir, Ag, Au, Pt, Cu, Mn, Fe) in various forms. The valuable function of versatile alkynoates (bearing multifunctional groups) as simple and useful starting materials is explored, thus cyclizing with an array of coupling partners to deliver a broad range of oxygen-, nitrogen-, sulfur-containing heterocycles alongside fused-, and spiro-heterocyclic compounds. In addition, these examples will also focus the scope and reaction limitations, as well as mechanistic investigations into the synthesis of these heterocycles. The biological significance will also be discussed, citing relevant examples of drug molecules highlighting each class of heterocycles. This review summarizes the recent developments in the synthetic methods for the synthesis of various heterocycles using alkynoates as readily available starting materials under transition-metal catalysis.
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Affiliation(s)
- Imtiaz Khan
- Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
- Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK.
| | - Aliya Ibrar
- Department of Chemistry, Faculty of Natural Sciences, The University of Haripur, Haripur, KPK-22620, Pakistan
| | - Sumera Zaib
- Department of Biochemistry, Faculty of Life Sciences, University of Central Punjab, Lahore, 54590, Pakistan
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16
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Talukdar R. Synthetically important ring opening reactions by alkoxybenzenes and alkoxynaphthalenes. RSC Adv 2020; 10:31363-31376. [PMID: 35520658 PMCID: PMC9056427 DOI: 10.1039/d0ra05111j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 07/31/2020] [Indexed: 12/16/2022] Open
Abstract
Alkoxybenzenes and alkoxynaphthalenes, as nucleophiles, have drawn great attention from organic chemists over the decades. Due to their high ring strain, those particular classes of molecules are often used in synthesis by utilizing their properties to undergo facile Friedel-Crafts alkylations. Different isomeric and low or densely substituted alkoxybenzenes are used for synthesis according to the structure of the target molecule. Isomeric methoxybenzenes, are the most commonly used molecule in this regard. This review aims to comprehensively cover the instances of different alkoxy-benzenes/naphthalenes used as nucleophiles for ring opening.
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Affiliation(s)
- Ranadeep Talukdar
- Molecular Synthesis and Drug Discovery Laboratory, Centre of Biomedical Research, Sanjay Gandhi Postgraduate Institute of Medical Sciences Lucknow-226014 India
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17
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Abstract
The asymmetric ring-opening of epoxides is an important reaction in organic synthesis, since it allows for the enantioselective installation of two vicinal functional groups with specific stereochemistry within one step from a highly available starting material. An effective class of catalysts for the asymmetric ring-opening of epoxides is metal–salen complexes. This review summarizes the development of metal–salen catalyzed enantioselective desymmetrization of meso-epoxides and kinetic resolution of epoxides with various nucleophiles, including the design and application of both homogeneous- and heterogeneous epoxide-opening catalysts as well as multi-metallic covalent and supramolecular catalytic systems.
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18
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Zhang LW, Zhang Y, Cui YF, Yu M, Dong WK. Heterobimetallic [NiIILnIII] (Ln = Sm and Tb) N2O4-donor coordination polymers: Syntheses, crystal structures and fluorescence properties. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119534] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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19
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Zhang Y, Li YJ, Guo SZ, Fu T, Zhao L. A series of heterobimetallic Ni(II)–Ln(III) (Ln = La, Ce, Pr and Nd) coordination polymers derived from 3-EtOsalamo and dicarboxylates: syntheses, crystal structures and fluorescence properties. TRANSIT METAL CHEM 2020. [DOI: 10.1007/s11243-020-00400-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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20
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Abstract
The β-hydroxy sulfides are an important class of organosulfur compounds that have a key role in the synthesis of bioactive compounds containing biological and natural products. The thiolysis of epoxides is the most common and best route for the synthesis of β-hydroxy sulfides. During the last decade, the applications of a diverse range of catalysts and promoter agents in green and organic mediums as well as under solvent-free conditions for the regioselective ring-opening reactions of epoxides with thiols in order to synthesize β-hydroxy sulfides have been studied by various research groups. This review is focused on the important achievements reported in the literature for the thiolysis of epoxides.
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Affiliation(s)
- Zhihua Chen
- Institute of Computing Science and Technology, Guangzhou University, Guangzhou 510006, China
| | | | - Mosstafa Kazemi
- Department of Chemistry, Faculty of Science, Ilam University, PO Box, 69315516 Ilam, Iran
| | - Masoud Mohammadi
- Department of Chemistry, Faculty of Science, Ilam University, PO Box, 69315516 Ilam, Iran
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21
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Dandachi H, Hong X, Ibrahim F, Nasrallah H, Zulauf A, Jaber N, Mellah M, Schulz E. Chiral salen complexes in polymeric main-chains for heterogeneous asymmetric catalysis - a brief account. VIETNAM JOURNAL OF CHEMISTRY 2020. [DOI: 10.1002/vjch.201900175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hiba Dandachi
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay; 91405 Orsay France
- Laboratoire de Chimie Médicinale et des Produits Naturels; Université Libanaise, Faculté des Sciences (I) et PRASE-EDST, Hadath, Beyrouth; Lebanon
| | - Xiang Hong
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay; 91405 Orsay France
| | - Farah Ibrahim
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay; 91405 Orsay France
- Laboratoire de Chimie Médicinale et des Produits Naturels; Université Libanaise, Faculté des Sciences (I) et PRASE-EDST, Hadath, Beyrouth; Lebanon
| | - Houssein Nasrallah
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay; 91405 Orsay France
| | - Anaïs Zulauf
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay; 91405 Orsay France
| | - Nada Jaber
- Laboratoire de Chimie Médicinale et des Produits Naturels; Université Libanaise, Faculté des Sciences (I) et PRASE-EDST, Hadath, Beyrouth; Lebanon
| | - Mohamed Mellah
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay; 91405 Orsay France
| | - Emmanuelle Schulz
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay; 91405 Orsay France
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22
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Deshpande N, Parulkar A, Joshi R, Diep B, Kulkarni A, Brunelli NA. Epoxide ring opening with alcohols using heterogeneous Lewis acid catalysts: Regioselectivity and mechanism. J Catal 2019. [DOI: 10.1016/j.jcat.2018.11.038] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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23
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Abdellah I, Martini C, Dos Santos A, Dragoe D, Guérineau V, Huc V, Schulz E. Calix[8]arene as New Platform for Cobalt-Salen Complexes Immobilization and Use in Hydrolytic Kinetic Resolution of Epoxides. ChemCatChem 2018. [DOI: 10.1002/cctc.201801164] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ibrahim Abdellah
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182; Université Paris-Sud, Université Paris-Saclay; Bâtiment 420 Orsay 91405 France
| | - Cyril Martini
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182; Université Paris-Sud, Université Paris-Saclay; Bâtiment 420 Orsay 91405 France
- Novecal; 8 rue Bastien Lepage 91140 Villebon sur Yvette France
| | - Amandine Dos Santos
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182; Université Paris-Sud, Université Paris-Saclay; Bâtiment 420 Orsay 91405 France
| | - Diana Dragoe
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182; Université Paris-Sud, Université Paris-Saclay; Bâtiment 420 Orsay 91405 France
| | - Vincent Guérineau
- Institut de Chimie des Substances Naturelles Centre de Recherche de Gif, CNRS; Université Paris-Saclay; 1, avenue de la Terrasse Gif-Sur-Yvette 91198 France
| | - Vincent Huc
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182; Université Paris-Sud, Université Paris-Saclay; Bâtiment 420 Orsay 91405 France
| | - Emmanuelle Schulz
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182; Université Paris-Sud, Université Paris-Saclay; Bâtiment 420 Orsay 91405 France
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24
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Fan P, Su S, Wang C. Molybdenum-Catalyzed Hydroxyl-Directed Anti-Dihydroxylation of Allylic and Homoallylic Alcohols. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01449] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pei Fan
- Department of Chemistry, Center for Excellence in Molecular Synthesis, Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Shixia Su
- Department of Chemistry, Center for Excellence in Molecular Synthesis, Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Chuan Wang
- Department of Chemistry, Center for Excellence in Molecular Synthesis, Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
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25
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Dzhardimalieva GI, Uflyand IE. Design Strategies of Metal Complexes Based on Chelating Polymer Ligands and Their Application in Nanomaterials Science. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-0841-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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26
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27
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Synthesis and structure of an air-stable bis(pentamethylcyclopentadienyl) zirconium pentafluorbezenesulfonate and its application in catalytic epoxide ring-opening reactions. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.01.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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28
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Phase-selectively soluble, polymer-supported salen catalyst prepared using atom transfer radical polymerization (ATRP). POLYMER 2018. [DOI: 10.1016/j.polymer.2017.12.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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29
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Zidelmal N, Aubry-Barroca N, Lepoittevin B, Mellah M, Costa L, Ozanam F, Gouget-Laemmel AC, Schulz E, Roger P. Synthesis, characterization and catalytic properties of salen-containing polymers obtained by atom transfer radical polymerization. POLYMER 2018. [DOI: 10.1016/j.polymer.2017.12.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Heterobimetallic 3d-4f (Zn/La) {6,6′-Dimethoxy-2,2′-[naphthalene-2,3-diylbis(nitrilomethylidyne)]diphenolato}-pyridylzinc(II)-tris(nitrato-O,O′)lanthanum(III) Monohydrate. MOLBANK 2017. [DOI: 10.3390/m965] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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31
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Sahani RL, Liu R. Gold‐Catalyzed [4+2] Annulation/Cyclization Cascades of Benzisoxazoles with Propiolate Derivatives to Access Highly Oxygenated Tetrahydroquinolines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707423] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
| | - Rai‐Shung Liu
- Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
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32
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Sahani RL, Liu R. Gold‐Catalyzed [4+2] Annulation/Cyclization Cascades of Benzisoxazoles with Propiolate Derivatives to Access Highly Oxygenated Tetrahydroquinolines. Angew Chem Int Ed Engl 2017; 56:12736-12740. [DOI: 10.1002/anie.201707423] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Indexed: 11/11/2022]
Affiliation(s)
| | - Rai‐Shung Liu
- Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
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33
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Xia Q, Li Z, Tan C, Liu Y, Gong W, Cui Y. Multivariate Metal–Organic Frameworks as Multifunctional Heterogeneous Asymmetric Catalysts for Sequential Reactions. J Am Chem Soc 2017; 139:8259-8266. [DOI: 10.1021/jacs.7b03113] [Citation(s) in RCA: 192] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Qingchun Xia
- School
of Chemistry and Chemical Engineering and State Key Laboratory of
Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zijian Li
- School
of Chemistry and Chemical Engineering and State Key Laboratory of
Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chunxia Tan
- School
of Chemistry and Chemical Engineering and State Key Laboratory of
Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yan Liu
- School
of Chemistry and Chemical Engineering and State Key Laboratory of
Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Wei Gong
- School
of Chemistry and Chemical Engineering and State Key Laboratory of
Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yong Cui
- School
of Chemistry and Chemical Engineering and State Key Laboratory of
Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
- Collaborative
Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
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34
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Xing C, Deng J, Tan R, Gao M, Hao P, Yin D, Yin D. Cooperative chiral salen TiIV catalyst supported on ionic liquid-functionalized graphene oxide accelerates asymmetric sulfoxidation in water. Catal Sci Technol 2017. [DOI: 10.1039/c7cy01511a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Multiple chiral salen TiIV complexes appended on an IL-functionalized GO surface reinforced intramolecular cooperative catalysis of asymmetric sulfoxidation in water.
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Affiliation(s)
- Chen Xing
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
| | - Jiang Deng
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
| | - Rong Tan
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
| | - Mengqiao Gao
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
| | - Pengbo Hao
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
| | - Donghong Yin
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
| | - Dulin Yin
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
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35
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Quintero-Téllez MG, Alcántara-Flores JL, Bernès S, Arroyo Carrasco ML, Méndez Otero MM, Reyes-Ortega Y. Synthesis, spectroscopic and structural characterization of bis[ N , N ′-3-azapentane-1,5-diyl-bis(salicylideneiminato)]-dicobalt(III). INORG CHEM COMMUN 2016. [DOI: 10.1016/j.inoche.2016.05.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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36
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Lindbäck E, Norouzi-Arasi H, Sheibani E, Ma D, Dawaigher S, Wärnmark K. Synthesis of Cr(III) Salen Complexes as Supramolecular Catalytic Systems for Ring-Opening Reactions of Epoxides. ChemistrySelect 2016. [DOI: 10.1002/slct.201600457] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Emil Lindbäck
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; P. O. Box 124 SE-221 00 Lund Sweden
| | - Hassan Norouzi-Arasi
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; P. O. Box 124 SE-221 00 Lund Sweden
| | - Esmaeil Sheibani
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; P. O. Box 124 SE-221 00 Lund Sweden
- Department of Chemistry; University of Isfahan; Isfahan 81746-73441 Iran
| | - Dayou Ma
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; P. O. Box 124 SE-221 00 Lund Sweden
- School of Pharmaceutical Sciences; Central South University; Changsha China 86731-83521996
| | - Sami Dawaigher
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; P. O. Box 124 SE-221 00 Lund Sweden
| | - Kenneth Wärnmark
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; P. O. Box 124 SE-221 00 Lund Sweden
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37
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Saddique FA, Zahoor AF, Faiz S, Naqvi SAR, Usman M, Ahmad M. Recent trends in ring opening of epoxides by amines as nucleophiles. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2016.1170148] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Ameer Fawad Zahoor
- Institute of Chemistry, Government College University, Faisalabad, Pakistan
| | - Sadia Faiz
- Institute of Chemistry, Government College University, Faisalabad, Pakistan
| | | | - Muhammad Usman
- Institute of Chemistry, Government College University, Faisalabad, Pakistan
| | - Matloob Ahmad
- Institute of Chemistry, Government College University, Faisalabad, Pakistan
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38
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Medina S, Henderson AS, Bower JF, Galan MC. Stereoselective synthesis of glycosides using (salen)Co catalysts as promoters. Chem Commun (Camb) 2016; 51:8939-41. [PMID: 25925803 DOI: 10.1039/c5cc02552d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The use of (salen)Co catalysts as a new class of bench-stable stereoselective glycosylation promoters of trichloroacetimidate glycosyl donors at room temperature is described. The conditions are practical and do not require the use of molecular sieves with products being isolated in good to high yields.
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Affiliation(s)
- Sandra Medina
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK.
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39
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Zhao G, Tan R, Zhang Y, Luo X, Xing C, Yin D. Cooperative chiral salen TiIV catalysts with built-in phase-transfer capability accelerate asymmetric sulfoxidation in water. RSC Adv 2016. [DOI: 10.1039/c6ra01130f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Double chiral salen TiIV complexes were flexibly combined into a single molecule through a PEG-based di-imidazolium IL bridge, which provided cooperative, phase transfer catalysts for efficient asymmetric sulfoxidation in water with H2O2.
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Affiliation(s)
- Guangwu Zhao
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- Key Laboratory of the Assembly and Application for Organic Functional Molecules
- Hunan Normal University
- Changsha
- China
| | - Rong Tan
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- Key Laboratory of the Assembly and Application for Organic Functional Molecules
- Hunan Normal University
- Changsha
- China
| | - Yaoyao Zhang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- Key Laboratory of the Assembly and Application for Organic Functional Molecules
- Hunan Normal University
- Changsha
- China
| | - Xuanfeng Luo
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- Key Laboratory of the Assembly and Application for Organic Functional Molecules
- Hunan Normal University
- Changsha
- China
| | - Chen Xing
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- Key Laboratory of the Assembly and Application for Organic Functional Molecules
- Hunan Normal University
- Changsha
- China
| | - Donghong Yin
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- Key Laboratory of the Assembly and Application for Organic Functional Molecules
- Hunan Normal University
- Changsha
- China
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40
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Mary Imelda Jayaseeli A, Ramdass A, Rajagopal S. Selective H2O2 oxidation of organic sulfides to sulfoxides catalyzed by cobalt(III)–salen ion. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.07.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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41
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Chen Y, Tan R, Zhang Y, Zhao G, Yin D. Dendritic Chiral Salen Titanium(IV) Catalysts Enforce the Cooperative Catalysis of Asymmetric Sulfoxidation. ChemCatChem 2015. [DOI: 10.1002/cctc.201500900] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yaju Chen
- Key Laboratory of Chemical Biology and; Traditional Chinese Medicine Research (Ministry of Education); Key Laboratory of the Assembly and Application for Organic Functional Molecules; Hunan Normal University; Changsha Hunan 410081 P.R. China
| | - Rong Tan
- Key Laboratory of Chemical Biology and; Traditional Chinese Medicine Research (Ministry of Education); Key Laboratory of the Assembly and Application for Organic Functional Molecules; Hunan Normal University; Changsha Hunan 410081 P.R. China
| | - Yaoyao Zhang
- Key Laboratory of Chemical Biology and; Traditional Chinese Medicine Research (Ministry of Education); Key Laboratory of the Assembly and Application for Organic Functional Molecules; Hunan Normal University; Changsha Hunan 410081 P.R. China
| | - Guangwu Zhao
- Key Laboratory of Chemical Biology and; Traditional Chinese Medicine Research (Ministry of Education); Key Laboratory of the Assembly and Application for Organic Functional Molecules; Hunan Normal University; Changsha Hunan 410081 P.R. China
| | - Donghong Yin
- Key Laboratory of Chemical Biology and; Traditional Chinese Medicine Research (Ministry of Education); Key Laboratory of the Assembly and Application for Organic Functional Molecules; Hunan Normal University; Changsha Hunan 410081 P.R. China
- Technology Center; China Tobacco Hunan Industrial Corporation; NO. 426 Laodong Road Changsha Hunan 410014 P.R. China
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42
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Brautigam B, Herholdt C, Farnsworth W, Brudi E, McDonald E, Wu G, Contakes S. Crystal structure of an unknown solvate of {2,2'-[ethane-1,2-diylbis(nitrilo-methanylyl-idene)]diphenolato-κ(4) O,N,N',O'}(N-ferrocenylisonicotinamide-κN (1))cobalt(II): a Co(II)-salen complex that forms hydrogen-bonded dimers. Acta Crystallogr E Crystallogr Commun 2015; 71:1100-4. [PMID: 26396858 PMCID: PMC4555431 DOI: 10.1107/s2056989015014723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 08/05/2015] [Indexed: 06/05/2023]
Abstract
The title compound, [CoFe(C5H5)(C16H14N2O2)(C11H9N2O)], was prepared as an air-stable red-brown solid by mixing equimolar amounts of {2,2'-[ethane-1,2-diylbis(nitrilo-methanylyl-idene)]diphenolato}cobalt(II) and N-ferrocenylisonicotinamide in dry di-chloro-methane under nitro-gen and was characterized by ESI-MS, IR, and single-crystal X-ray diffraction. The structure at 100 K has triclinic (P-1) symmetry and indicates that the complex crystallizes as a mixture of λ and δ conformers. It exhibits the expected square pyramidal geometry about Co, and forms hydrogen-bonded dimers through amide N-H groups and phenolate O atoms on an adjacent mol-ecule. The involvement of only half of the salen ring structure in hydrogen-bonding inter-actions results in slight folding of the salen ring away from the pyridine coordination site in the δ conformer with an inter-salicyl-idene fold angle of 9.9 (7)°. In contrast, the λ conformer is nearly planar. The dimers pack into an open structure containing channels filled with highly disordered solvent mol-ecules. These solvent molecules' contributions to the intensity data were removed with the SQUEEZE procedure [Spek (2015). Acta Cryst. C71, 9-18] available in PLATON.
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Affiliation(s)
- Bryan Brautigam
- Department of Chemistry, Westmont College, 955 La Paz Road, Santa Barbara, CA 93108, USA
| | - Chelsea Herholdt
- Department of Chemistry, Westmont College, 955 La Paz Road, Santa Barbara, CA 93108, USA
| | - William Farnsworth
- Department of Chemistry, Westmont College, 955 La Paz Road, Santa Barbara, CA 93108, USA
| | - Ellen Brudi
- Department of Chemistry, Westmont College, 955 La Paz Road, Santa Barbara, CA 93108, USA
| | - Eric McDonald
- Department of Chemistry, Westmont College, 955 La Paz Road, Santa Barbara, CA 93108, USA
| | - Guang Wu
- UCSB College of Letters and Science, X-Ray Analytical Facility, 4610 Physical Sciences North, UC Santa Barbara, Santa Barbara CA 93106, USA
| | - Stephen Contakes
- Department of Chemistry, Westmont College, 955 La Paz Road, Santa Barbara, CA 93108, USA
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43
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44
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Wang C, Yamamoto H. Gadolinium-Catalyzed Regio- and Enantioselective Aminolysis of Aromatic trans-2,3-Epoxy Sulfonamides. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503391] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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45
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Wan NW, Liu ZQ, Xue F, Shen ZY, Zheng YG. A One-Step Biocatalytic Process for (S)-4-Chloro-3-hydroxybutyronitrile using Halohydrin Dehalogenase: A Chiral Building Block for Atorvastatin. ChemCatChem 2015. [DOI: 10.1002/cctc.201500453] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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46
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Liu TT, Lin ZJ, Shi PC, Ma T, Huang YB, Cao R. A Metallosalen-based Porous Organic Polymer for Olefin Epoxidation. ChemCatChem 2015. [DOI: 10.1002/cctc.201500374] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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47
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Wang C, Yamamoto H. Gadolinium-Catalyzed Regio- and Enantioselective Aminolysis of Aromatic trans-2,3-Epoxy Sulfonamides. Angew Chem Int Ed Engl 2015; 54:8760-3. [PMID: 26058560 DOI: 10.1002/anie.201503391] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Indexed: 11/05/2022]
Abstract
The first enantioselective aminolysis of aromatic trans-2,3-epoxy sulfonamides has been accomplished, which was efficiently catalyzed by a Gd-N,N'-dioxide complex. Under the directing effect of the sulfonamide moiety the ring-opening reaction proceeded selectively at the C-3 position in a highly enantioselective manner furnishing various Ts- and SES-protected 3-amino-3-phenylpropan-2-olamines as products.
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Affiliation(s)
- Chuan Wang
- Department of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, IL 60637 (USA)
| | - Hisashi Yamamoto
- Department of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, IL 60637 (USA). , .,Molecular Catalyst Research Center, Chubu University, 1200 Matsumoto, Kasugai, Aichi 487-8501 (Japan). ,
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48
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Wang C, Yamamoto H. Nickel-Catalyzed Regio- and Enantioselective Aminolysis of 3,4-Epoxy Alcohols. J Am Chem Soc 2015; 137:4308-11. [DOI: 10.1021/jacs.5b01005] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chuan Wang
- Department
of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637, United States
| | - Hisashi Yamamoto
- Department
of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637, United States
- Molecular
Catalyst Research Center, Chubu University, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan
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49
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Hua YZ, Yang XC, Liu MM, Song X, Wang MC, Chang JB. Asymmetric Copolymerization of Cyclopentene Oxide and CO2 Using a Dinuclear Zinc–AzePhenol Catalyst: Enlightened by DFT Calculations. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00066] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yuan-Zhao Hua
- College of Chemistry and
Molecular Engineering, Zhengzhou University, 75, Daxue Street, Zhengzhou City, Henan Province 450052, P. R. China
| | - Xiao-Chao Yang
- College of Chemistry and
Molecular Engineering, Zhengzhou University, 75, Daxue Street, Zhengzhou City, Henan Province 450052, P. R. China
| | - Meng-Meng Liu
- College of Chemistry and
Molecular Engineering, Zhengzhou University, 75, Daxue Street, Zhengzhou City, Henan Province 450052, P. R. China
| | - Xixi Song
- College of Chemistry and
Molecular Engineering, Zhengzhou University, 75, Daxue Street, Zhengzhou City, Henan Province 450052, P. R. China
| | - Min-Can Wang
- College of Chemistry and
Molecular Engineering, Zhengzhou University, 75, Daxue Street, Zhengzhou City, Henan Province 450052, P. R. China
| | - Jun-Biao Chang
- College of Chemistry and
Molecular Engineering, Zhengzhou University, 75, Daxue Street, Zhengzhou City, Henan Province 450052, P. R. China
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50
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Synthesis and enzymatic resolution of racemic 2,3-epoxy propyl esters obtained from glycerol. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.02.046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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