1
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Zong Y, Zou X, Tao H, Huang Q, Chen GQ, Zhang X. Highly Efficient and Enantioselective Iridium-Catalyzed Asymmetric Reductive Cycloetherification. J Am Chem Soc 2024; 146:34107-34117. [PMID: 39586056 DOI: 10.1021/jacs.4c13709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2024]
Abstract
A catalytic protocol for the iridium-catalyzed asymmetric hydrogenation (AH) of γ- or δ-hydroxy ketones to rapidly assemble various aliphatic enantioenriched tetrahydrofurans (THFs) or tetrahydropyrans (THPs) is disclosed. A wide range of enantioenriched THFs or THPs were obtained in high yields and excellent enantioselectivities (up to 99% and up to 96.5:3.5 er). The dynamic kinetic resolution asymmetric hydrogenation (DKR-AH) process was also achieved, simultaneously constructing enantioenriched THP scaffolds with two contiguous stereogenic centers with high yields and stereoselectivities (up to 92% yield, up to 98.5:1.5 er and >20:1 dr). Mechanistic investigation indicates that the key step of the reaction involves the AH of the challenging cyclic, aliphatic oxocarbenium ions. Furthermore, this catalytic enantioselective approach could be carried out on a gram scale, and various enantioenriched cyclic ethers were further transformed into an array of useful building blocks for enantioenriched natural products and bioactive molecules.
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Affiliation(s)
- Yan Zong
- Department of Chemistry, Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518000, China
| | - Xiaomei Zou
- Department of Chemistry, Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518000, China
| | - Hongqi Tao
- Department of Chemistry, Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518000, China
| | - Qiuchen Huang
- Department of Chemistry, Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518000, China
| | - Gen-Qiang Chen
- Shenzhen Grubbs Institute and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518000, China
| | - Xumu Zhang
- Department of Chemistry, Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518000, China
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2
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Kaster SHM, Zhu L, Lyon WL, Ma R, Ammann SE, White MC. Palladium-catalyzed cross-coupling of alcohols with olefins by positional tuning of a counteranion. Science 2024; 385:1067-1076. [PMID: 39236162 DOI: 10.1126/science.ado8027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 05/31/2024] [Accepted: 07/31/2024] [Indexed: 09/07/2024]
Abstract
Transition metal-catalyzed cross-couplings have great potential to furnish complex ethers; however, challenges in the C(sp3)-O functionalization step have precluded general methods. Here, we describe computationally guided transition metal-ligand design that positions a hydrogen-bond acceptor anion at the reactive site to promote functionalization. A general cross-coupling of primary, secondary, and tertiary aliphatic alcohols with terminal olefins to furnish >130 ethers is achieved. The mild conditions tolerate functionality that is prone to substitution, elimination, and epimerization and achieve site selectivity in polyol settings. Mechanistic studies support the hypothesis that the ligand's geometry and electronics direct positioning of the phosphate anion at the π-allyl-palladium terminus, facilitating the phosphate's hydrogen-bond acceptor role toward the alcohol. Ligand-directed counteranion positioning in cationic transition metal catalysis has the potential to be a general strategy for promoting challenging bimolecular reactivity.
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Affiliation(s)
- Sven H M Kaster
- Department of Chemistry, Roger Adams Laboratory, University of Illinois, Urbana, IL, USA
| | - Lei Zhu
- Department of Chemistry, Roger Adams Laboratory, University of Illinois, Urbana, IL, USA
| | - William L Lyon
- Department of Chemistry, Roger Adams Laboratory, University of Illinois, Urbana, IL, USA
| | - Rulin Ma
- Department of Chemistry, Roger Adams Laboratory, University of Illinois, Urbana, IL, USA
| | - Stephen E Ammann
- Department of Chemistry, Roger Adams Laboratory, University of Illinois, Urbana, IL, USA
| | - M Christina White
- Department of Chemistry, Roger Adams Laboratory, University of Illinois, Urbana, IL, USA
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3
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Fu J, Vaughn Z, Nolting AF, Gao Q, Yang D, Schuster CH, Kalyani D. Diastereoselective Reductive Etherification Via High-Throughput Experimentation: Access to Pharmaceutically Relevant Alkyl Ethers. J Org Chem 2023; 88:13454-13465. [PMID: 37677061 DOI: 10.1021/acs.joc.3c00822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
This manuscript describes the development of the first diastereoselective intermolecular synthesis of alkyl ethers via reductive etherification of diverse ketones or aldehydes with alcohols. Key to this development was the use of low-temperature high-throughput experimentation (HTE) technologies that enabled rapid reaction optimizations and parallel synthesis. A broad scope of pharmaceutically relevant substrates was surveyed, which formed alkyl ethers effectively. In addition, we demonstrated that the diastereoselectivity of this transformation can be readily modulated by prudent selection of the reductant.
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Affiliation(s)
- Jiantao Fu
- Discovery Chemistry, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Zoe Vaughn
- Discovery Chemistry, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Andrew F Nolting
- Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Qi Gao
- Analytical Research and Development, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Dexi Yang
- Discovery Chemistry, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Christopher H Schuster
- Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Dipannita Kalyani
- Discovery Chemistry, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
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4
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Baire B, Gandhi S, Bommanaboina B, Roy D. The Bis(indolylmethyl) ethers: Design, Prototypical Synthesis, and Scope Studies. J Org Chem 2023; 88:12115-12120. [PMID: 37537963 DOI: 10.1021/acs.joc.3c01116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
The design, prototypical synthesis, isolation, and characterization of bis(indolylmethyl) ethers from corresponding indolylcarbinols is described. This approach involves very mild conditions and exhibits good scope for indolylcarbinols (both N-electron withdrawing group and N-electron donating group). Cross etherification between two electronically different indolylcarbinols is also demonstrated for the generation of unsymmetrical ethers. For the first time, the intermediacy of the bis(indolylmethyl) ethers for the formation of bis(indolyl)methanes from indolylcarbinols is proved experimentally and by 1H NMR analysis.
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Affiliation(s)
- Beeraiah Baire
- Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Soniya Gandhi
- Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | | | - Debayan Roy
- Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
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5
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Adili A, Webster JP, Zhao C, Mallojjala SC, Romero-Reyes MA, Ghiviriga I, Abboud KA, Vetticatt MJ, Seidel D. Mechanism of a Dually Catalyzed Enantioselective Oxa-Pictet-Spengler Reaction and the Development of a Stereodivergent Variant. ACS Catal 2023; 13:2240-2249. [PMID: 37711191 PMCID: PMC10501388 DOI: 10.1021/acscatal.2c05484] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Enantioselective oxa-Pictet-Spengler reactions of tryptophol with aldehydes proceed under weakly acidic conditions utilizing a combination of two catalysts, an indoline HCl salt and a bisthiourea compound. Mechanistic investigations revealed the roles of both catalysts and confirmed the involvement of oxocarbenium ion intermediates, ruling out alternative scenarios. A stereochemical model was derived from density functional theory calculations, which provided the basis for the development of a highly enantioselective stereodivergent variant with racemic tryptophol derivatives.
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Affiliation(s)
- Alafate Adili
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - John-Paul Webster
- Department of Chemistry, Binghamton University, Binghamton, New York 13902, United States
| | - Chenfei Zhao
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | | | - Moises A Romero-Reyes
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Ion Ghiviriga
- Center for NMR Spectroscopy, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Khalil A Abboud
- Center for X-ray Crystallography, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Mathew J Vetticatt
- Department of Chemistry, Binghamton University, Binghamton, New York 13902, United States
| | - Daniel Seidel
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
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6
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Kutateladze DA, Wagen CC, Jacobsen EN. Chloride-Mediated Alkene Activation Drives Enantioselective Thiourea and Hydrogen Chloride Co-Catalyzed Prins Cyclizations. J Am Chem Soc 2022; 144:15812-15824. [PMID: 35994741 PMCID: PMC9437134 DOI: 10.1021/jacs.2c06688] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The mechanism of chiral hydrogen-bond donor (HBD) and hydrogen chloride (HCl) co-catalyzed Prins cyclizations was analyzed through a combination of experimental and computational methods and revealed to involve an unexpected and previously unrecognized mode of alkene activation. Kinetic and spectroscopic studies support the participation of a catalytically active HCl·HBD complex that displays reduced Brønsted acidity relative to HCl alone. Nevertheless, rate acceleration relative to the HCl-catalyzed background reaction as well as high levels of enantioselectivity are achieved. This inverse Brønsted correlation is ascribed to chloride-mediated substrate activation in the rate-limiting and enantiodetermining cyclization transition state. Density functional theory (DFT) calculations, distortion-interaction analysis, and quasiclassical dynamics simulations support a stepwise mechanism in which rate acceleration and enantioselectivity are achieved through the precise positioning of the chloride anion within the active site of the chiral thiourea to enhance the nucleophilicity of the alkene and provide transition-state stabilization through local electric field effects. This mode of selective catalysis through anion positioning likely has general implications for the design of enantioselective Brønsted acid-catalyzed reactions involving π-nucleophiles.
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Affiliation(s)
| | | | - Eric N. Jacobsen
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
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7
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Akar E, Kandemir D, Luleburgaz S, Kumbaraci V, Durmaz H. Efficient Post-Polymerization modification of pendant aldehyde functional polymer via reductive etherification reaction. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Shennan BDA, Berheci D, Crompton JL, Davidson TA, Field JL, Williams BA, Dixon DJ. Branching out: redox strategies towards the synthesis of acyclic α-tertiary ethers. Chem Soc Rev 2022; 51:5878-5929. [PMID: 35770619 DOI: 10.1039/d1cs00669j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Acyclic α-tertiary ethers represent a highly prevalent functionality, common to high-value bioactive molecules, such as pharmaceuticals and natural products, and feature as crucial synthetic handles in their construction. As such their synthesis has become an ever-more important goal in synthetic chemistry as the drawbacks of traditional strong base- and acid-mediated etherifications have become more limiting. In recent years, the generation of highly reactive intermediates via redox approaches has facilitated the synthesis of highly sterically-encumbered ethers and accordingly these strategies have been widely applied in α-tertiary ether synthesis. This review summarises and appraises the state-of-the-art in the application of redox strategies enabling acyclic α-tertiary ether synthesis.
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Affiliation(s)
- Benjamin D A Shennan
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Diana Berheci
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Jessica L Crompton
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Timothy A Davidson
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Joshua L Field
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Benedict A Williams
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Darren J Dixon
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
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9
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Alashek F, Keshe M, Alhassan G. Preparation of Glycerol Derivatives by Entered of Glycerol in Different Chemical Organic Reactions: A review. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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10
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Fu H, Chen H, Gao B, Lu T, Su Y, Zhou L, Liu M, Li H, Yang X. Selectivity control in photocatalytic transfer hydrogenation of bio‐based aldehydes. ChemCatChem 2022. [DOI: 10.1002/cctc.202200120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hongmei Fu
- Zhengzhou University College of Chemistry Zhengzhou CHINA
| | - Haijun Chen
- Zhengzhou University College of Chemistry Zhengzhou CHINA
| | - Beibei Gao
- Zhengzhou University College of Chemistry Zhengzhou CHINA
| | - Tianliang Lu
- Zhengzhou University School of Chemical Engineering Zhengzhou CHINA
| | - Yunlai Su
- Zhengzhou University College of Chemistry Zhengzhou CHINA
| | - Lipeng Zhou
- Zhengzhou University College of Chemistry Zhengzhou CHINA
| | - Meijiang Liu
- Dalian Institute of Chemical Physics Dalian National Laboratory for Clean Energy Dalian CHINA
| | - Hongji Li
- Zhengzhou University College of Chemistry 100 Kexue Road, 450001 Zhengzhou P.R. China 450001 Zhengzhou CHINA
| | - Xiaomei Yang
- Zhengzhou University College of Chemistry Zhengzhou CHINA
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11
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Ouyang L, Xia Y, Miao R, Liao J, Luo R. Iridium-catalyzed reductive etherification of α,β-unsaturated ketones and aldehydes with alcohols. Org Biomol Chem 2022; 20:2621-2625. [PMID: 35302576 DOI: 10.1039/d2ob00122e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An iridium complex-catalyzed reductive etherification of α,β-unsaturated ketones and aldehydes with primary alcohols is presented, affording allyl ethers in excellent yields. Deuterated and control experiments showed that this etherification transformation proceeded through a cascade transfer hydrogenation and alcohol condensation process. Moreover, the utility of this protocol is evidenced by the gram-scale performance.
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Affiliation(s)
- Lu Ouyang
- School of Pharmacy, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, P. R. China.
| | - Yanping Xia
- School of Pharmacy, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, P. R. China.
| | - Rui Miao
- School of Pharmacy, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, P. R. China.
| | - Jianhua Liao
- School of Pharmacy, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, P. R. China.
| | - Renshi Luo
- School of Pharmacy, Gannan Medical University, Ganzhou, 341000, Jiangxi Province, P. R. China.
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12
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Delolo FG, Fessler J, Neumann H, Junge K, dos Santos EN, Gusevskaya EV, Beller M. Cobalt‐Catalysed Reductive Etherification Using Phosphine Oxide Promoters under Hydroformylation Conditions. Chemistry 2022; 28:e202103903. [DOI: 10.1002/chem.202103903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Indexed: 11/09/2022]
Affiliation(s)
- Fábio G. Delolo
- Departamento de Química Universidade Federal de Minas Gerais Av. Antônio Carlos 6627 MG 31270-901 Belo Horizonte Brazil
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Johannes Fessler
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Helfried Neumann
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Kathrin Junge
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Eduardo N. dos Santos
- Departamento de Química Universidade Federal de Minas Gerais Av. Antônio Carlos 6627 MG 31270-901 Belo Horizonte Brazil
| | - Elena V. Gusevskaya
- Departamento de Química Universidade Federal de Minas Gerais Av. Antônio Carlos 6627 MG 31270-901 Belo Horizonte Brazil
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
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13
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Luleburgaz S, Hizal G, Tunca U, Durmaz H. Chlorodimethylsilane-Mediated Reductive Etherification Reaction: A Robust Method for Polyether Synthesis. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Serter Luleburgaz
- Department of Chemistry, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey
| | - Gurkan Hizal
- Department of Chemistry, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey
| | - Umit Tunca
- Department of Chemistry, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey
| | - Hakan Durmaz
- Department of Chemistry, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey
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14
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Kutateladze DA, Jacobsen EN. Cooperative Hydrogen-Bond-Donor Catalysis with Hydrogen Chloride Enables Highly Enantioselective Prins Cyclization Reactions. J Am Chem Soc 2021; 143:20077-20083. [PMID: 34812618 PMCID: PMC8717859 DOI: 10.1021/jacs.1c10890] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Cooperative asymmetric catalysis with hydrogen chloride (HCl) and chiral dual-hydrogen-bond donors (HBDs) is applied successfully to highly enantioselective Prins cyclization reactions of a wide variety of simple alkenyl aldehydes. The optimal chiral catalysts were designed to withstand the strongly acidic reaction conditions and were found to induce rate accelerations of 2 orders of magnitude over reactions catalyzed by HCl alone. We propose that the combination of strong mineral acids and chiral hydrogen-bond-donor catalysts may represent a general strategy for inducing enantioselectivity in reactions that require highly acidic conditions.
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Affiliation(s)
- Dennis A. Kutateladze
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Eric N. Jacobsen
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
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15
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Lluna‐Galán C, Izquierdo‐Aranda L, Adam R, Cabrero‐Antonino JR. Catalytic Reductive Alcohol Etherifications with Carbonyl-Based Compounds or CO 2 and Related Transformations for the Synthesis of Ether Derivatives. CHEMSUSCHEM 2021; 14:3744-3784. [PMID: 34237201 PMCID: PMC8518999 DOI: 10.1002/cssc.202101184] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/07/2021] [Indexed: 05/27/2023]
Abstract
Ether derivatives have myriad applications in several areas of chemical industry and academia. Hence, the development of more effective and sustainable protocols for their production is highly desired. Among the different methodologies reported for ether synthesis, catalytic reductive alcohol etherifications with carbonyl-based moieties (aldehydes/ketones and carboxylic acid derivatives) have emerged in the last years as a potential tool. These processes constitute appealing routes for the selective production of both symmetrical and asymmetrical ethers (including O-heterocycles) with an increased molecular complexity. Likewise, ester-to-ether catalytic reductions and hydrogenative alcohol etherifications with CO2 to dialkoxymethanes and other acetals, albeit in less extent, have undergone important advances, too. In this Review, an update of the recent progresses in the area of catalytic reductive alcohol etherifications using carbonyl-based compounds and CO2 have been described with a special focus on organic synthetic applications and catalyst design. Complementarily, recent progress made in catalytic acetal/ketal-to-ether or ester-to-ether reductions and other related transformations have been also summarized.
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Affiliation(s)
- Carles Lluna‐Galán
- Instituto de Tecnología QuímicaUniversitat Politécnica de València-Consejo Superior Investigaciones Científicas (UPV-CSIC)Avda. de los Naranjos s/n46022ValenciaSpain
| | - Luis Izquierdo‐Aranda
- Instituto de Tecnología QuímicaUniversitat Politécnica de València-Consejo Superior Investigaciones Científicas (UPV-CSIC)Avda. de los Naranjos s/n46022ValenciaSpain
| | - Rosa Adam
- Instituto de Tecnología QuímicaUniversitat Politécnica de València-Consejo Superior Investigaciones Científicas (UPV-CSIC)Avda. de los Naranjos s/n46022ValenciaSpain
| | - Jose R. Cabrero‐Antonino
- Instituto de Tecnología QuímicaUniversitat Politécnica de València-Consejo Superior Investigaciones Científicas (UPV-CSIC)Avda. de los Naranjos s/n46022ValenciaSpain
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16
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Luleburgaz S, Hizal G, Tunca U, Durmaz H. Modification of Polyketone via Chlorodimethylsilane-Mediated Reductive Etherification Reaction: A Practical Way for Alkoxy-Functional Polymers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00461] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Serter Luleburgaz
- Department of Chemistry, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
| | - Gurkan Hizal
- Department of Chemistry, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
| | - Umit Tunca
- Department of Chemistry, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
| | - Hakan Durmaz
- Department of Chemistry, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
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17
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Matador E, Iglesias-Sigüenza J, Monge D, Merino P, Fernández R, Lassaletta JM. Enantio- and Diastereoselective Nucleophilic Addition of N-tert-Butylhydrazones to Isoquinolinium Ions through Anion-Binding Catalysis. Angew Chem Int Ed Engl 2021; 60:5096-5101. [PMID: 33045143 DOI: 10.1002/anie.202012861] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Indexed: 12/13/2022]
Abstract
A highly enantio- and diastereoselective thiourea-catalyzed dearomatization of isoquinolines employing N-tert-butylhydrazones as neutral α-azo carbanions and masked acyl anion equivalents has been developed. Experimental and computational data supports the generation of highly ordered complexes wherein the chloride behaves as a template for the catalyst, the hydrazone reagent, and the isoquinolinium cation, providing excellent stereocontrol in the formation of two contiguous stereogenic centers. The ensuing selective and high-yielding transformations provide appealing dihydroisoquinoline derivatives.
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Affiliation(s)
- Esteban Matador
- Departamento de Química Orgánica, Universidad de Sevilla and Centro de Innovación en Química Avanzada (ORFEO-CINQA), C/ Prof. García González 1, 41012, Sevilla, Spain
| | - Javier Iglesias-Sigüenza
- Departamento de Química Orgánica, Universidad de Sevilla and Centro de Innovación en Química Avanzada (ORFEO-CINQA), C/ Prof. García González 1, 41012, Sevilla, Spain
| | - David Monge
- Departamento de Química Orgánica, Universidad de Sevilla and Centro de Innovación en Química Avanzada (ORFEO-CINQA), C/ Prof. García González 1, 41012, Sevilla, Spain
| | - Pedro Merino
- Instituto de BiocomputaciónyFísica de Sistemas Complejos (BIFI), Universidad de Zaragoza-CSIC, 50009, Zaragoza, Spain
| | - Rosario Fernández
- Departamento de Química Orgánica, Universidad de Sevilla and Centro de Innovación en Química Avanzada (ORFEO-CINQA), C/ Prof. García González 1, 41012, Sevilla, Spain
| | - José M Lassaletta
- Instituto de Investigaciones Químicas (CSIC-US) and Centro de Innovación en Química Avanzada (ORFEO-CINQA), C/ Américo Vespucio 49, 41092, Sevilla, Spain
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18
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Matador E, Iglesias‐Sigüenza J, Monge D, Merino P, Fernández R, Lassaletta JM. Enantio‐ and Diastereoselective Nucleophilic Addition of
N
‐
tert
‐Butylhydrazones to Isoquinolinium Ions through Anion‐Binding Catalysis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012861] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Esteban Matador
- Departamento de Química Orgánica Universidad de Sevilla and Centro de Innovación en Química Avanzada (ORFEO-CINQA) C/ Prof. García González 1 41012 Sevilla Spain
| | - Javier Iglesias‐Sigüenza
- Departamento de Química Orgánica Universidad de Sevilla and Centro de Innovación en Química Avanzada (ORFEO-CINQA) C/ Prof. García González 1 41012 Sevilla Spain
| | - David Monge
- Departamento de Química Orgánica Universidad de Sevilla and Centro de Innovación en Química Avanzada (ORFEO-CINQA) C/ Prof. García González 1 41012 Sevilla Spain
| | - Pedro Merino
- Instituto de BiocomputaciónyFísica de Sistemas Complejos (BIFI) Universidad de Zaragoza-CSIC 50009 Zaragoza Spain
| | - Rosario Fernández
- Departamento de Química Orgánica Universidad de Sevilla and Centro de Innovación en Química Avanzada (ORFEO-CINQA) C/ Prof. García González 1 41012 Sevilla Spain
| | - José M. Lassaletta
- Instituto de Investigaciones Químicas (CSIC-US) and Centro de Innovación en Química Avanzada (ORFEO-CINQA) C/ Américo Vespucio 49 41092 Sevilla Spain
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19
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Chen CW, Wang CC, Li XR, Witek H, Mong KKT. Sub-stoichiometric reductive etherification of carbohydrate substrates and one-pot protecting group manipulation. Org Biomol Chem 2020; 18:3135-3141. [PMID: 32255139 DOI: 10.1039/d0ob00252f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
In this study, we report a new reductive etherification procedure for protection of carbohydrate substrates and its application for one-pot preparation of glycosyl building blocks. The reported procedure features the use of polymethylhydrosiloxane (PMHS) as a sub-stoichiometric reducing agent, which prevents the transilylation side reaction and improves the efficiency of the reductive etherification method. Application of the PMHS reductive etherification procedure for one-pot protecting group manipulation are described.
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Affiliation(s)
- Chiao Wen Chen
- Applied Chemistry Department, National Chiao Tung University, 1001, University Road, Hsinchu City, Taiwan.
| | - Ching Chi Wang
- Applied Chemistry Department, National Chiao Tung University, 1001, University Road, Hsinchu City, Taiwan.
| | - Xin Ru Li
- Applied Chemistry Department, National Chiao Tung University, 1001, University Road, Hsinchu City, Taiwan.
| | - Henryk Witek
- Applied Chemistry Department, National Chiao Tung University, 1001, University Road, Hsinchu City, Taiwan.
| | - Kwok-Kong Tony Mong
- Applied Chemistry Department, National Chiao Tung University, 1001, University Road, Hsinchu City, Taiwan.
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20
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21
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Yang T, Sun Y, Wang H, Lin Z, Wen J, Zhang X. Iridium‐Catalyzed Enantioselective Hydrogenation of Oxocarbenium Ions: A Case of Ionic Hydrogenation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916677] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Tilong Yang
- Shenzhen Grubbs Institute and Department of chemistrySouthern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
- Department of ChemistryThe Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong China
| | - Yongjie Sun
- Shenzhen Grubbs Institute and Department of chemistrySouthern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Heng Wang
- Shenzhen Grubbs Institute and Department of chemistrySouthern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Zhenyang Lin
- Department of ChemistryThe Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong China
| | - Jialin Wen
- Shenzhen Grubbs Institute and Department of chemistrySouthern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
- Academy for Advanced Interdisciplinary StudiesSouthern University of Science and Technology Shenzhen 518055 China
| | - Xumu Zhang
- Shenzhen Grubbs Institute and Department of chemistrySouthern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
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22
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Yang T, Sun Y, Wang H, Lin Z, Wen J, Zhang X. Iridium‐Catalyzed Enantioselective Hydrogenation of Oxocarbenium Ions: A Case of Ionic Hydrogenation. Angew Chem Int Ed Engl 2020; 59:6108-6114. [DOI: 10.1002/anie.201916677] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Indexed: 01/10/2023]
Affiliation(s)
- Tilong Yang
- Shenzhen Grubbs Institute and Department of chemistrySouthern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
- Department of ChemistryThe Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong China
| | - Yongjie Sun
- Shenzhen Grubbs Institute and Department of chemistrySouthern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Heng Wang
- Shenzhen Grubbs Institute and Department of chemistrySouthern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
| | - Zhenyang Lin
- Department of ChemistryThe Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong China
| | - Jialin Wen
- Shenzhen Grubbs Institute and Department of chemistrySouthern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
- Academy for Advanced Interdisciplinary StudiesSouthern University of Science and Technology Shenzhen 518055 China
| | - Xumu Zhang
- Shenzhen Grubbs Institute and Department of chemistrySouthern University of Science and Technology 1088 Xueyuan Road Shenzhen 518055 China
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23
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Grewal S, Roy S, Kumar H, Saraswat M, Bari NK, Sinha S, Venkataramani S. Temporal control in tritylation reactions through light-driven variation in chloride ion binding catalysis – a proof of concept. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01090a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A proof-of-concept on temporal control in the tritylation reactions has been demonstrated using a designed tripodal triazole-linked azo(hetero)arene-based photoswitchable catalyst.
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Affiliation(s)
- Surbhi Grewal
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Mohali
- India
| | - Saonli Roy
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Mohali
- India
| | - Himanshu Kumar
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Mohali
- India
| | - Mayank Saraswat
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Mohali
- India
| | - Naimat K. Bari
- Institute of Nano Science and Technology (INST)
- Mohali-160 062
- India
| | - Sharmistha Sinha
- Institute of Nano Science and Technology (INST)
- Mohali-160 062
- India
| | - Sugumar Venkataramani
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Mohali
- India
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24
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Rysak V, Dixit R, Trivelli X, Merle N, Agbossou-Niedercorn F, Vanka K, Michon C. Catalytic reductive deoxygenation of esters to ethers driven by hydrosilane activation through non-covalent interactions with a fluorinated borate salt. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00775g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fluorinated borate BArF salt catalyses the reductive deoxygenation of esters to ethers by using hydrosilanes. Experimental and theoretical studies highlight the role of noncovalent interactions in the reaction mechanism.
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Affiliation(s)
- Vincent Rysak
- Univ. Lille
- CNRS
- Centrale Lille
- Univ. Artois
- UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide
| | - Ruchi Dixit
- Physical and Material Chemistry Division
- CSIR-National Chemical Laboratory
- Pune 411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | | | - Nicolas Merle
- Univ. Lille
- CNRS
- Centrale Lille
- Univ. Artois
- UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide
| | | | - Kumar Vanka
- Physical and Material Chemistry Division
- CSIR-National Chemical Laboratory
- Pune 411008
- India
| | - Christophe Michon
- Univ. Lille
- CNRS
- Centrale Lille
- Univ. Artois
- UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide
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25
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26
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Monsigny L, Thuéry P, Berthet JC, Cantat T. Breaking C–O Bonds with Uranium: Uranyl Complexes as Selective Catalysts in the Hydrosilylation of Aldehydes. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01408] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Louis Monsigny
- NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
| | - Pierre Thuéry
- NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
| | - Jean-Claude Berthet
- NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
| | - Thibault Cantat
- NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
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27
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Han Z, Liu G, Wang R, Dong XQ, Zhang X. Highly efficient Ir-catalyzed asymmetric hydrogenation of benzoxazinones and derivatives with a Brønsted acid cocatalyst. Chem Sci 2019; 10:4328-4333. [PMID: 31057759 PMCID: PMC6471538 DOI: 10.1039/c8sc05797d] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 03/03/2019] [Indexed: 12/18/2022] Open
Abstract
The Ir-catalyzed highly efficient asymmetric hydrogenation of benzoxazinones and derivatives was successfully developed with N-methylated ZhaoPhos L5 as the ligand, affording various chiral dihydrobenzoxazinones and derivatives with excellent results.
The Ir-catalyzed highly efficient asymmetric hydrogenation of benzoxazinones and derivatives was successfully developed with N-methylated ZhaoPhos L5 as the ligand, which may display a new activation mode with a single anion-binding interaction among the substrate, cocatalyst Brønsted acid and ligand. This synthetic approach afforded a series of chiral dihydrobenzoxazinones and derivatives with excellent results (>99% conversion, 88–96% yields, 91–>99% ee, up to 40 500 TON). A key to success is the utilization of a strong Brønsted acid as the cocatalyst, such as hydrochloric acid, to form a possible single anion-binding interaction with the substrate and catalyst, which greatly contributed to the improvement of reactivity and enantioselectivity. Importantly, a creative and efficient synthetic route was developed to construct the important intermediate for the potential IgE/IgG receptor modulator through our catalytic methodology system.
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Affiliation(s)
- Zhengyu Han
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Gang Liu
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Rui Wang
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Xiu-Qin Dong
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Xumu Zhang
- Key Laboratory of Biomedical Polymers , Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China . .,Department of Chemistry , Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , P. R. China .
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28
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Wu D, Hernández WY, Zhang S, Vovk EI, Zhou X, Yang Y, Khodakov AY, Ordomsky VV. In Situ Generation of Brønsted Acidity in the Pd-I Bifunctional Catalysts for Selective Reductive Etherification of Carbonyl Compounds under Mild Conditions. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04925] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Dan Wu
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464 CNRS-Solvay, 201108 Shanghai, People’s Republic of China
- Université Lille, CNRS, Centrale Lille, ENSCL, Université Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Willinton Y. Hernández
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464 CNRS-Solvay, 201108 Shanghai, People’s Republic of China
| | - Songwei Zhang
- School of Physical Science and Technology, ShanghaiTech University, 201210 Shanghai, People’s Republic of China
| | - Evgeny I. Vovk
- School of Physical Science and Technology, ShanghaiTech University, 201210 Shanghai, People’s Republic of China
| | - Xiaohong Zhou
- School of Physical Science and Technology, ShanghaiTech University, 201210 Shanghai, People’s Republic of China
| | - Yong Yang
- School of Physical Science and Technology, ShanghaiTech University, 201210 Shanghai, People’s Republic of China
| | - Andrei Y. Khodakov
- Université Lille, CNRS, Centrale Lille, ENSCL, Université Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Vitaly V. Ordomsky
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464 CNRS-Solvay, 201108 Shanghai, People’s Republic of China
- Université Lille, CNRS, Centrale Lille, ENSCL, Université Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
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29
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Kang K, Lohrman JA, Nagarajan S, Chen L, Deng P, Shen X, Fu K, Feng W, Johnson DW, Yuan L. Convergent Ditopic Receptors Enhance Anion Binding upon Alkali Metal Complexation for Catalyzing the Ritter Reaction. Org Lett 2019; 21:652-655. [PMID: 30638017 PMCID: PMC6653609 DOI: 10.1021/acs.orglett.8b03778] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A supramolecular approach to catalyzing the Ritter reaction by utilizing enhanced anion-binding affinity in the presence of alkali metal cations was developed with ditopic hydrogen-bonded amide macrocycles. With prebound cations in the macrocycle, particularly Li+ ion, their metal complexes exhibit greatly enhanced catalytic activities. The catalysis is switchable by removal or addition of the bound cation. The method described in this work may be generalized for use in other anion-triggered organic reactions involving heteroditopic receptors capable of ion pairing.
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Affiliation(s)
- Kang Kang
- Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| | - Jessica A. Lohrman
- Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| | - Sangaraiah Nagarajan
- Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| | - Lixi Chen
- Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| | - Pengchi Deng
- Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| | - Xin Shen
- Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| | - Kuirong Fu
- Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| | - Wen Feng
- Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| | - Darren W. Johnson
- Department of Chemistry & Biochemistry and the Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1253, United States
| | - Lihua Yuan
- Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Analytical & Testing Center, Sichuan University, Chengdu 610064, China
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30
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Liu C, Shen HQ, Chen MW, Zhou YG. C2-Symmetric Hindered “Sandwich” Chiral N-Heterocyclic Carbene Precursors and Their Transition Metal Complexes: Expedient Syntheses, Structural Authentication, and Catalytic Properties. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00492] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Cong Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Hong-Qiang Shen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Mu-Wang Chen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
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31
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Li S, Kobayashi Y, Takemoto Y. Organocatalytic Direct α-Selective N-Glycosylation of Amide with Glycosyl Trichloroacetimidate. Chem Pharm Bull (Tokyo) 2018; 66:768-770. [DOI: 10.1248/cpb.c18-00255] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Shanji Li
- Graduate School of Advanced Integrated Studies in Human Survivability, Kyoto University
| | | | - Yoshiji Takemoto
- Graduate School of Advanced Integrated Studies in Human Survivability, Kyoto University
- Graduate School of Pharmaceutical Sciences, Kyoto University
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32
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Luo C, Bandar JS. Superbase-Catalyzed anti-Markovnikov Alcohol Addition Reactions to Aryl Alkenes. J Am Chem Soc 2018; 140:3547-3550. [DOI: 10.1021/jacs.8b00766] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Chaosheng Luo
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Jeffrey S. Bandar
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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33
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Amendola V, Boiocchi M, Fabbrizzi L, La Cognata S, Legnani L, Lo Presti E, Mangano C, Miljkovic A. Anion-induced isomerization of fluorescent semi(thio)carbazones. Org Chem Front 2018. [DOI: 10.1039/c7qo00805h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An anion-controlled flapping motion has been observed in a series of novel semi(thio)carbazone molecules.
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Affiliation(s)
- Valeria Amendola
- Dipartimento di Chimica
- Università degli Studi di Pavia
- Pavia
- Italy
| | - Massimo Boiocchi
- Centro Grandi Strumenti
- Università degli Studi di Pavia
- Pavia
- Italy
| | - Luigi Fabbrizzi
- Dipartimento di Chimica
- Università degli Studi di Pavia
- Pavia
- Italy
| | - Sonia La Cognata
- Dipartimento di Chimica
- Università degli Studi di Pavia
- Pavia
- Italy
| | - Laura Legnani
- Dipartimento di Chimica
- Università degli Studi di Pavia
- Pavia
- Italy
| | - Eliana Lo Presti
- Dipartimento di Chimica
- Università degli Studi di Pavia
- Pavia
- Italy
| | - Carlo Mangano
- Dipartimento di Chimica
- Università degli Studi di Pavia
- Pavia
- Italy
| | - Ana Miljkovic
- Dipartimento di Chimica
- Università degli Studi di Pavia
- Pavia
- Italy
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34
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Tarai A, Baruah JB. Four-coordinated see-sawN-(aryl)-2-(propan-2-ylidene)hydrazinecarbothioamide complexes of nickel(ii), copper(ii) and zinc(ii) and their propensity for catalytic cyclisation. Dalton Trans 2018; 47:4921-4930. [DOI: 10.1039/c8dt00453f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four-coordinated metal complexes of two hydrazinecarbothioamide-derived ligands with divalent nickel, copper and zinc are described and the selective reactivity difference of copper(ii) to cyclise the ligand or to form a complex is described.
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Affiliation(s)
- Arup Tarai
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati -781 039
- India
| | - Jubaraj B. Baruah
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati -781 039
- India
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35
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Juste-Navarro V, Prieto L, Delso I, Manzano R, Tejero T, Reyes E, Vicario JL, Merino P. A Case Study of Thiourea-Assisted Iminium Formation by Hydroxyl Anion Binding: Kinetic, Spectroscopic and Computational Evidences. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700986] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Veronica Juste-Navarro
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH); Universidad de Zaragoza-CSIC; 5009 Zaragoza Spain
| | - Liher Prieto
- Department of Organic Chemistry II; University of the Basque Country (UPV/EHU); P.O. Box 644 48080 Bilbao Spain
| | - Ignacio Delso
- Servicio de RMN, Centro de Química y Materiales de Aragón; Universidad de Zaragoza-CSIC; 5009 Zaragoza Spain
| | - Rubén Manzano
- Department of Organic Chemistry II; University of the Basque Country (UPV/EHU); P.O. Box 644 48080 Bilbao Spain
| | - Tomas Tejero
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH); Universidad de Zaragoza-CSIC; 5009 Zaragoza Spain
| | - Efraim Reyes
- Department of Organic Chemistry II; University of the Basque Country (UPV/EHU); P.O. Box 644 48080 Bilbao Spain
| | - Jose L. Vicario
- Department of Organic Chemistry II; University of the Basque Country (UPV/EHU); P.O. Box 644 48080 Bilbao Spain
| | - Pedro Merino
- Instituto de Biocomputación y Física de Sistemas Complejos (BIFI); Universidad de Zaragoza-CSIC; 5009 Zaragoza Spain
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