1
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Wloch M, Sun Z, Valzer E, Pouységu L, Quideau S. Total Synthesis of the Bacterial ortho-Quinol (+)-Strepantibin A through Iodyl-Type λ 5-Iodane-Promoted Asymmetric Hydroxylative Phenol Dearomatization. Org Lett 2024; 26:6086-6091. [PMID: 38990158 DOI: 10.1021/acs.orglett.4c01653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
An enantioselective synthesis of the bacterial metabolite (+)-strepantibin A, a novel inhibitor of the hexokinase II (HK2) in cancer cells, is described. Its monomethylated resorcinolic para-terphenyl core was conveniently prepared through a Danheiser benzannulation. The elaboration of its ortho-quinolic chiral center was accomplished by relying on an iodyl-promoted regio- and enantioselective hydroxylative dearomatization. The olefinic side-chain of the resulting ortho-quinol was finally oxygenated under Wacker-type conditions to generate the propanone appendage of (+)-strepantibin A.
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Affiliation(s)
- Morgan Wloch
- Université de Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405 Talence Cedex, France
| | - Zhaozhao Sun
- Université de Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405 Talence Cedex, France
| | - Emmanuel Valzer
- Université de Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405 Talence Cedex, France
| | - Laurent Pouységu
- Université de Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405 Talence Cedex, France
| | - Stéphane Quideau
- Université de Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405 Talence Cedex, France
- Institut Universitaire de France, 1 rue Descartes, 75231 Paris Cedex 05, France
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2
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Zhang Z, Li J, Cai Z, Kang S, Wang J, Cui Y, Han S, Sheng L, Yin Q, Dai A, Zhao W, Zhao F. Electrochemical aerobic Wacker-type oxygenation of triaryl substituted alkenes to 1,2,2-triarylethanones. Chem Commun (Camb) 2024; 60:3035-3038. [PMID: 38348672 DOI: 10.1039/d3cc05770d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
An effective synthetic approach for various 1,2,2-triarylethanones from triaryl substituted alkenes has been developed via an electrochemical Wacker-type oxygenation with O2 as the sole oxygen source. It presents the first instance of the Wacker-type oxidation expanding its substrate scope to trisubstituted alkenes. The approach is transition-metal-free, compatible with various functional groups, and can be carried out under mild conditions resulting in satisfactory yields. Mechanistic experiments suggest the CO bond formation occurs through reactions between cationic carbon species and the superoxide radical, which involves the 1,2-shift of the electron-rich substituent.
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Affiliation(s)
- Zhou Zhang
- School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, P. R. China.
| | - Jin Li
- Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu, P. R. China.
| | - Zhiwei Cai
- College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, Guangdong, P. R. China.
| | - Songyao Kang
- College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, Guangdong, P. R. China.
| | - Jian Wang
- Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu, P. R. China.
| | - Yue Cui
- Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu, P. R. China.
| | - Siyuan Han
- Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu, P. R. China.
| | - Lei Sheng
- College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, Guangdong, P. R. China.
| | - Qing Yin
- College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, Guangdong, P. R. China.
| | - Ang Dai
- College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, Guangdong, P. R. China.
| | - Weining Zhao
- College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, Guangdong, P. R. China.
| | - Fangyuan Zhao
- School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, P. R. China.
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3
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Abuhafez N, Ehlers AW, de Bruin B, Gramage-Doria R. Markovnikov-Selective Cobalt-Catalyzed Wacker-Type Oxidation of Styrenes into Ketones under Ambient Conditions Enabled by Hydrogen Bonding. Angew Chem Int Ed Engl 2024; 63:e202316825. [PMID: 38037901 DOI: 10.1002/anie.202316825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 11/29/2023] [Accepted: 12/01/2023] [Indexed: 12/02/2023]
Abstract
The replacement of palladium catalysts for Wacker-type oxidation of olefins into ketones by first-row transition metals is a relevant approach for searching more sustainable protocols. Besides highly sophisticated iron catalysts, all the other first-row transition metal complexes have only led to poor activities and selectivities. Herein, we show that the cobalt-tetraphenylporphyrin complex is a competent catalyst for the aerobic oxidation of styrenes into ketones with silanes as the hydrogen sources. Remarkably, under room temperature and air atmosphere, the reactions were exceedingly fast (up to 10 minutes) with a low catalyst loading (1 mol %) while keeping an excellent chemo- and Markovnikov-selectivity (up to 99 % of ketone). Unprecedently high TOF (864 h-1 ) and TON (5,800) were reached for the oxidation of aromatic olefins under these benign conditions. Mechanistic studies suggest a reaction mechanism similar to the Mukaiyama-type hydration of olefins with a change in the last fundamental step, which controls the chemoselectivity, thanks to a unique hydrogen bonding network between the ethanol solvent and the cobalt peroxo intermediate.
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Affiliation(s)
- Naba Abuhafez
- Univ Rennes, CNRS, ISCR-UMR6226, 35000, Rennes, France
| | - Andreas W Ehlers
- University of Amsterdam, Science Park 904, 1094 XH, Amsterdam, The Netherlands
| | - Bas de Bruin
- University of Amsterdam, Science Park 904, 1094 XH, Amsterdam, The Netherlands
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4
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Jachak GR, Kashinath K, Vasudevan N, Athawale PR, Choudhury R, Dange SS, Agarwal H, Barthwal MK, Reddy DS. Comprehensive Study on Solomonamides: Total Synthesis, Stereochemical Revision, and SAR Studies toward Identification of Simplified Lead. J Org Chem 2023; 88:17088-17133. [PMID: 38051995 DOI: 10.1021/acs.joc.3c01987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Solomonamides, a pair of macrocyclic peptide natural products originating from marine sources, have garnered significant attention within the synthetic community owing to their marked anti-inflammatory efficacy and intricate molecular architectures. In this paper, we present a very detailed investigation into solomonamides, including the challenges associated with the total synthesis, the evolution of our synthetic strategies, structural reassignment, synthesis of all possible stereoisomeric macrocycles, biological assessment, structure-activity relationship (SAR) studies, etc. Within the ambit of this total synthesis, diverse strategies for macrocyclization were rigorously explored, encompassing the Friedel-Crafts acylation, cyclization involving the aniline NH2 moiety, macrolactamization utilizing Gly-NH2, and Heck macrocyclization methodologies. In addition, an array of intriguing chemical transformations were devised, including but not limited to photo-Fries rearrangement, Wacker oxidation, ligand-free Heck macrocyclization, oxidative cleavage of indole, synthesis of contiguous stereocenters via substrate/reagent-controlled protocols, and simultaneous making and breaking of olefinic moieties. The findings of this investigation revealed a structurally simplified lead compound. Remarkably, the lead compound, while possessing structural simplification in comparison to the intricate solomonamide counterparts, demonstrates equipotent in vivo anti-inflammatory efficacy.
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Affiliation(s)
- Gorakhnath R Jachak
- Division of Organic Chemistry, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - K Kashinath
- Division of Organic Chemistry, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - N Vasudevan
- Division of Organic Chemistry, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Paresh R Athawale
- Division of Organic Chemistry, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Rahul Choudhury
- Division of Organic Chemistry, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Santoshkumar S Dange
- Division of Organic Chemistry, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune 411008, India
| | - Heena Agarwal
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Pharmacology Division, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India
| | - Manoj Kumar Barthwal
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Pharmacology Division, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India
| | - D Srinivasa Reddy
- Division of Organic Chemistry, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India
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5
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Miyazaki M, Ura Y. Palladium/Iron-Catalyzed Wacker-Type Oxidation of Aliphatic Terminal and Internal Alkenes Using O 2. ACS OMEGA 2023; 8:41983-41990. [PMID: 37969998 PMCID: PMC10634151 DOI: 10.1021/acsomega.3c07577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 10/06/2023] [Indexed: 11/17/2023]
Abstract
The Wacker-type oxidation of aliphatic terminal alkenes proceeds using a Pd/Fe catalyst system under mild reaction conditions using 1 atm O2 without other additives. The use of 1,2-dimethoxyethane/H2O as a mixed solvent was effective. The slow addition of alkenes is also important for improving product yields. Fe(III) citrate was the most efficient cocatalyst among the iron complexes examined, whereas other complexes such as FeSO4, Fe2(SO4)3, Fe(NO3)3, and Fe2O3 were also operative. This method is also applicable to aliphatic internal alkenes, which are generally difficult to oxidize using conventional Pd/Cu catalyst systems. The gram-scale synthesis and reuse of the Pd catalysts were also demonstrated.
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Affiliation(s)
- Mayu Miyazaki
- Department of Chemistry,
Biology, and Environmental Science, Faculty of Science, Nara Women’s University, Kitauoyanishi-machi, Nara 630-8506, Japan
| | - Yasuyuki Ura
- Department of Chemistry,
Biology, and Environmental Science, Faculty of Science, Nara Women’s University, Kitauoyanishi-machi, Nara 630-8506, Japan
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6
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Trouvé J, Youssef K, Kasemthaveechok S, Gramage-Doria R. Catalyst Complexity in a Highly Active and Selective Wacker-Type Markovnikov Oxidation of Olefins with a Bioinspired Iron Complex. ACS Catal 2023. [DOI: 10.1021/acscatal.3c00593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Affiliation(s)
| | - Khalil Youssef
- Univ Rennes, CNRS, ISCR-UMR6226, FR-35000 Rennes, France
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7
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Garbacz M, Stecko S. The regioselective Wacker oxidation of internal allylamines: synthesis of functionalized and challenging β-amino ketones. Org Biomol Chem 2022; 21:115-126. [PMID: 36448662 DOI: 10.1039/d2ob01843h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A convenient and general protocol for the palladium-catalysed oxidation of internal allylamine derivatives to β-amino ketones is reported. The transformation occurs at room temperature and shows a wide substrate scope as well as high functional group and N-protecting group tolerance. We also describe potential applications of the method, e.g., the synthesis of bioactive molecules or simple transformations of selected β-amino ketones into other interesting building blocks.
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Affiliation(s)
- Mateusz Garbacz
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
| | - Sebastian Stecko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
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8
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Rajeshwaran P, Trouvé J, Youssef K, Gramage‐Doria R. Sustainable Wacker-Type Oxidations. Angew Chem Int Ed Engl 2022; 61:e202211016. [PMID: 36164675 PMCID: PMC10092001 DOI: 10.1002/anie.202211016] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Indexed: 11/09/2022]
Abstract
The Wacker reaction is the oxidation of olefins to ketones and typically requires expensive and scarce palladium catalysts in the presence of an additional copper co-catalyst under harsh conditions (acidic media, high pressure of air/dioxygen, elevated temperatures). Such a transformation is relevant for industry, as shown by the synthesis of acetaldehyde from ethylene as well as for fine-chemicals, because of the versatility of a carbonyl group placed at specific positions. In this regard, many contributions have focused on controlling the chemo- and regioselectivity of the olefin oxidation by means of well-defined palladium catalysts under different sets of reaction conditions. However, the development of Wacker-type processes that avoid the use of palladium catalysts has just emerged in the last few years, thereby paving the way for the generation of more sustainable procedures, including milder reaction conditions and green chemistry technologies. In this Minireview, we discuss the development of new catalytic processes that utilize more benign catalysts and sustainable reaction conditions.
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9
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Soler J, Gergel S, Klaus C, Hammer SC, Garcia-Borràs M. Enzymatic Control over Reactive Intermediates Enables Direct Oxidation of Alkenes to Carbonyls by a P450 Iron-Oxo Species. J Am Chem Soc 2022; 144:15954-15968. [PMID: 35998887 PMCID: PMC9460782 DOI: 10.1021/jacs.2c02567] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
![]()
The aerobic oxidation of alkenes to carbonyls is an important
and
challenging transformation in synthesis. Recently, a new P450-based
enzyme (aMOx) has been evolved in the laboratory to directly oxidize
styrenes to their corresponding aldehydes with high activity and selectivity.
The enzyme utilizes a heme-based, high-valent iron-oxo species as
a catalytic oxidant that normally epoxidizes alkenes, similar to other
catalysts. How the evolved aMOx enzyme suppresses the commonly preferred
epoxidation and catalyzes direct carbonyl formation is currently not
well understood. Here, we combine computational modelling together
with mechanistic experiments to study the reaction mechanism and unravel
the molecular basis behind the selectivity achieved by aMOx. Our results
describe that although both pathways are energetically accessible
diverging from a common covalent radical intermediate, intrinsic dynamic effects determine the strong preference for epoxidation.
We discovered that aMOx overrides these intrinsic preferences by controlling
the accessible conformations of the covalent radical intermediate.
This disfavors epoxidation and facilitates the formation of a carbocation
intermediate that generates the aldehyde product through a fast 1,2-hydride
migration. Electrostatic preorganization of the enzyme active site
also contributes to the stabilization of the carbocation intermediate.
Computations predicted that the hydride migration is stereoselective
due to the enzymatic conformational control over the intermediate
species. These predictions were corroborated by experiments using
deuterated styrene substrates, which proved that the hydride migration
is cis- and enantioselective. Our results demonstrate
that directed evolution tailored a highly specific active site that
imposes strong steric control over key fleeting biocatalytic intermediates,
which is essential for accessing the carbonyl forming pathway and
preventing competing epoxidation.
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Affiliation(s)
- Jordi Soler
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Carrer Maria Aurèlia Capmany 69, Girona 17003, Catalonia, Spain
| | - Sebastian Gergel
- Chair of Organic Chemistry and Biocatalysis, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Cindy Klaus
- Chair of Organic Chemistry and Biocatalysis, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Stephan C Hammer
- Chair of Organic Chemistry and Biocatalysis, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Marc Garcia-Borràs
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Carrer Maria Aurèlia Capmany 69, Girona 17003, Catalonia, Spain
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10
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Tanaka R, Komori S, Shimizu Y, Kataoka Y, Ura Y. Synthesis of 2-hydroxytetrahydrofurans by Wacker-type oxidation of 1,1-disubstituted alkenes. Org Biomol Chem 2022; 20:570-574. [PMID: 34989385 DOI: 10.1039/d1ob02277f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1,1-Disubstituted alkenes feature high steric hindrance, which renders their Wacker-type oxidation difficult. We demonstrate the stereoselective synthesis of 2-hydroxytetrahydrofurans via the Wacker-type oxidation of 3-methyl-3-buten-1-ols by using a PdCl2(MeCN)2/NO/BQ catalyst system under 1 atm O2 in H2O or H2O/DMF.
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Affiliation(s)
- Rina Tanaka
- Department of Chemistry, Biology, and Environmental Science, Faculty of Science, Nara Women's University, Kitauoyanishi-machi, Nara 630-8506, Japan.
| | - Saki Komori
- Department of Chemistry, Biology, and Environmental Science, Faculty of Science, Nara Women's University, Kitauoyanishi-machi, Nara 630-8506, Japan.
| | - Yuhei Shimizu
- Synthesis Research Laboratory, Kurashiki Research Center, Kuraray Co., Ltd, 2045-1, Sakazu, Kurashiki, Okayama 710-0801, Japan
| | - Yasutaka Kataoka
- Department of Chemistry, Biology, and Environmental Science, Faculty of Science, Nara Women's University, Kitauoyanishi-machi, Nara 630-8506, Japan.
| | - Yasuyuki Ura
- Department of Chemistry, Biology, and Environmental Science, Faculty of Science, Nara Women's University, Kitauoyanishi-machi, Nara 630-8506, Japan.
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11
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Oshanina IV, Podtyagina AV, Pestunova UV, Rusnak IN, Temkin ON. Catalytic Oxidation of Ethylene in Solutions of Palladium(II) Cationic Complexes in Binary and Ternary Aqueous Organic Solvents. KINETICS AND CATALYSIS 2022. [DOI: 10.1134/s0023158421060148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Lei SH, Zhong Y, Cai XP, Huang Q, Qu JP, Kang YB. Direct synthesis of β-acyloxy aldehydes from linear allylic esters using O2 as the sole oxidant. Org Chem Front 2022. [DOI: 10.1039/d1qo01607e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and practical preparation of β-O substituted aldehydes directly from linear allylic esters using oxygen as the sole oxidant and tert-butyl nitrite as a simple and sole redox cocatalyst is developed.
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Affiliation(s)
- Shu-Hui Lei
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Ya Zhong
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xian-Peng Cai
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Qing Huang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jian-Ping Qu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yan-Biao Kang
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China
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13
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Lei SH, Zhong Y, Cai XP, Huang Q, Qu JP, Kang YB. Direct Synthesis of β-Amino Aldehydes from Linear Allylic Esters Using O 2 as the Sole Oxidant. Org Lett 2021; 23:9273-9276. [PMID: 34797081 DOI: 10.1021/acs.orglett.1c03619] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A tandem isomerization-anti-Markovnikov oxidation of linear allylic imidic esters is developed using bis(benzonitrile)palladium chloride as the catalyst and O2 as the sole oxidant, regiospecifically giving β-amino aldehydes as the product. tert-Butyl nitrite works as a simple, and the only, redox cocatalyst. tBuOH proves to be a crucial solvent for achieving excellent yield and specificity toward anti-Markovnikov aldehyde products.
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Affiliation(s)
- Shu-Hui Lei
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Ya Zhong
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xian-Peng Cai
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Qing Huang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jian-Ping Qu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yan-Biao Kang
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China
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14
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Biermann U, Bornscheuer UT, Feussner I, Meier MAR, Metzger JO. Fatty Acids and their Derivatives as Renewable Platform Molecules for the Chemical Industry. Angew Chem Int Ed Engl 2021; 60:20144-20165. [PMID: 33617111 PMCID: PMC8453566 DOI: 10.1002/anie.202100778] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Indexed: 12/13/2022]
Abstract
Oils and fats of vegetable and animal origin remain an important renewable feedstock for the chemical industry. Their industrial use has increased during the last 10 years from 31 to 51 million tonnes annually. Remarkable achievements made in the field of oleochemistry in this timeframe are summarized herein, including the reduction of fatty esters to ethers, the selective oxidation and oxidative cleavage of C-C double bonds, the synthesis of alkyl-branched fatty compounds, the isomerizing hydroformylation and alkoxycarbonylation, and olefin metathesis. The use of oleochemicals for the synthesis of a great variety of polymeric materials has increased tremendously, too. In addition to lipases and phospholipases, other enzymes have found their way into biocatalytic oleochemistry. Important achievements have also generated new oil qualities in existing crop plants or by using microorganisms optimized by metabolic engineering.
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Affiliation(s)
- Ursula Biermann
- Institute of ChemistryUniversity of Oldenburg26111OldenburgGermany
- abiosuse.V.Bloherfelder Straße 23926129OldenburgGermany
| | - Uwe T. Bornscheuer
- Institute of BiochemistryDept. of Biotechnology & Enzyme CatalysisGreifswald UniversityFelix-Hausdorff-Strasse 417487GreifswaldGermany
| | - Ivo Feussner
- University of GoettingenAlbrecht-von-Haller Institute for Plant SciencesInternational Center for Advanced Studies of Energy Conversion (ICASEC) and Goettingen Center of Molecular Biosciences (GZMB)Dept. of Plant BiochemistryJustus-von-Liebig-Weg 1137077GoettingenGermany
| | - Michael A. R. Meier
- Laboratory of Applied ChemistryInstitute of Organic Chemistry (IOC)Karlsruhe Institute of Technology (KIT)Straße am Forum 776131KarlsruheGermany
- Laboratory of Applied ChemistryInstitute of Biological and Chemical Systems—Functional Molecular Systems (IBCS-FMS)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - Jürgen O. Metzger
- Institute of ChemistryUniversity of Oldenburg26111OldenburgGermany
- abiosuse.V.Bloherfelder Straße 23926129OldenburgGermany
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15
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Biermann U, Bornscheuer UT, Feussner I, Meier MAR, Metzger JO. Fettsäuren und Fettsäurederivate als nachwachsende Plattformmoleküle für die chemische Industrie. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100778] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ursula Biermann
- Institut für Chemie Universität Oldenburg 26111 Oldenburg Deutschland
- abiosuse.V. Bloherfelder Straße 239 26129 Oldenburg Deutschland
| | - Uwe T. Bornscheuer
- Institut für Biochemie Abt. Biotechnologie & Enzymkatalyse Universität Greifswald Felix-Hausdorff-Straße 4 17487 Greifswald Deutschland
| | - Ivo Feussner
- Universität Göttingen Albrecht-von-Haller Institut für Pflanzenwissenschaften International Center for Advanced Studies of Energy Conversion (ICASEC) und Göttinger Zentrum für Molekulare Biowissenschaften (GZMB) Abt. für die Biochemie der Pflanze Justus-von-Liebig-Weg 11 37077 Göttingen Deutschland
| | - Michael A. R. Meier
- Labor für Angewandte Chemie Institut für Organische Chemie (IOC) Karlsruher Institut für Technology (KIT) Straße am Forum 7 76131 Karlsruhe Deutschland
- Labor für Angewandte Chemie Institut für biologische und chemische Systeme –, Funktionale Molekülsysteme (IBCS-FMS) Karlsruher Institut für Technologie (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
| | - Jürgen O. Metzger
- Institut für Chemie Universität Oldenburg 26111 Oldenburg Deutschland
- abiosuse.V. Bloherfelder Straße 239 26129 Oldenburg Deutschland
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16
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Gao J, Ma R, Feng L, Liu Y, Jackstell R, Jagadeesh RV, Beller M. Ambient Hydrogenation and Deuteration of Alkenes Using a Nanostructured Ni‐Core–Shell Catalyst. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Jie Gao
- Leibniz Leibniz-Institut für Katalyse e.V. Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Rui Ma
- Leibniz Leibniz-Institut für Katalyse e.V. Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Lu Feng
- Dalian National Laboratory for Clean Energy (DNL) Dalian Institute of Chemical Physics Chinese Academy of Science 457 Zhongshan Road 116023 Dalian China
| | - Yuefeng Liu
- Dalian National Laboratory for Clean Energy (DNL) Dalian Institute of Chemical Physics Chinese Academy of Science 457 Zhongshan Road 116023 Dalian China
| | - Ralf Jackstell
- Leibniz Leibniz-Institut für Katalyse e.V. Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | | | - Matthias Beller
- Leibniz Leibniz-Institut für Katalyse e.V. Albert-Einstein-Strasse 29a 18059 Rostock Germany
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17
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Gao J, Ma R, Feng L, Liu Y, Jackstell R, Jagadeesh RV, Beller M. Ambient Hydrogenation and Deuteration of Alkenes Using a Nanostructured Ni-Core-Shell Catalyst. Angew Chem Int Ed Engl 2021; 60:18591-18598. [PMID: 34076934 PMCID: PMC8453733 DOI: 10.1002/anie.202105492] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Indexed: 11/08/2022]
Abstract
A general protocol for the selective hydrogenation and deuteration of a variety of alkenes is presented. Key to success for these reactions is the use of a specific nickel-graphitic shell-based core-shell-structured catalyst, which is conveniently prepared by impregnation and subsequent calcination of nickel nitrate on carbon at 450 °C under argon. Applying this nanostructured catalyst, both terminal and internal alkenes, which are of industrial and commercial importance, were selectively hydrogenated and deuterated at ambient conditions (room temperature, using 1 bar hydrogen or 1 bar deuterium), giving access to the corresponding alkanes and deuterium-labeled alkanes in good to excellent yields. The synthetic utility and practicability of this Ni-based hydrogenation protocol is demonstrated by gram-scale reactions as well as efficient catalyst recycling experiments.
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Affiliation(s)
- Jie Gao
- Leibniz Leibniz-Institut für Katalyse e.V.Albert-Einstein-Strasse 29a18059RostockGermany
| | - Rui Ma
- Leibniz Leibniz-Institut für Katalyse e.V.Albert-Einstein-Strasse 29a18059RostockGermany
| | - Lu Feng
- Dalian National Laboratory for Clean Energy (DNL)Dalian Institute of Chemical PhysicsChinese Academy of Science457 Zhongshan Road116023DalianChina
| | - Yuefeng Liu
- Dalian National Laboratory for Clean Energy (DNL)Dalian Institute of Chemical PhysicsChinese Academy of Science457 Zhongshan Road116023DalianChina
| | - Ralf Jackstell
- Leibniz Leibniz-Institut für Katalyse e.V.Albert-Einstein-Strasse 29a18059RostockGermany
| | | | - Matthias Beller
- Leibniz Leibniz-Institut für Katalyse e.V.Albert-Einstein-Strasse 29a18059RostockGermany
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18
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Liu J, Guðmundsson A, Bäckvall J. Efficient Aerobic Oxidation of Organic Molecules by Multistep Electron Transfer. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012707] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jie Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University 410082 Changsha China
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University SE-10691 Stockholm Sweden
| | - Arnar Guðmundsson
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University SE-10691 Stockholm Sweden
| | - Jan‐E. Bäckvall
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University SE-10691 Stockholm Sweden
- Department of Natural Sciences Mid Sweden University Holmgatan 10 SE-85170 Sundsvall Sweden
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19
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Liu J, Guðmundsson A, Bäckvall J. Efficient Aerobic Oxidation of Organic Molecules by Multistep Electron Transfer. Angew Chem Int Ed Engl 2021; 60:15686-15704. [PMID: 33368909 PMCID: PMC9545650 DOI: 10.1002/anie.202012707] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Indexed: 12/17/2022]
Abstract
This Minireview presents recent important homogenous aerobic oxidative reactions which are assisted by electron transfer mediators (ETMs). Compared with direct oxidation by molecular oxygen (O2 ), the use of a coupled catalyst system with ETMs leads to a lower overall energy barrier via stepwise electron transfer. This cooperative catalytic process significantly facilitates the transport of electrons from the reduced form of the substrate-selective redox catalyst (SSRCred ) to O2 , thereby increasing the efficiency of the aerobic oxidation. In this Minireview, we have summarized the advances accomplished in recent years in transition-metal-catalyzed as well as metal-free aerobic oxidations of organic molecules in the presence of ETMs. In addition, the recent progress of photochemical and electrochemical oxidative functionalization using ETMs and O2 as the terminal oxidant is also highlighted. Furthermore, the mechanisms of these transformations are showcased.
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Affiliation(s)
- Jie Liu
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University410082ChangshaChina
- Department of Organic ChemistryArrhenius LaboratoryStockholm UniversitySE-10691StockholmSweden
| | - Arnar Guðmundsson
- Department of Organic ChemistryArrhenius LaboratoryStockholm UniversitySE-10691StockholmSweden
| | - Jan‐E. Bäckvall
- Department of Organic ChemistryArrhenius LaboratoryStockholm UniversitySE-10691StockholmSweden
- Department of Natural SciencesMid Sweden UniversityHolmgatan 10SE-85170SundsvallSweden
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20
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Hashimoto T, Maruyama T, Ishimaru T, Matsugaki M, Shiota K, Yamaguchi Y. Wacker‐Tsuji‐Type Oxidation Reactions of Styrene Derivatives Catalyzed by Ferrate. ChemistrySelect 2021. [DOI: 10.1002/slct.202101752] [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)
- Toru Hashimoto
- Department of Advanced Materials Chemistry Graduate School of Engineering Yokohama National University Yokohama Kanagawa 240-8501 Japan
- Department of Applied Chemistry Faculty of Engineering Sanyo-Onoda City University Sanyo-Onoda Yamaguchi 756-0884 Japan
| | - Tsubasa Maruyama
- Department of Advanced Materials Chemistry Graduate School of Engineering Yokohama National University Yokohama Kanagawa 240-8501 Japan
| | - Toshiya Ishimaru
- Department of Advanced Materials Chemistry Graduate School of Engineering Yokohama National University Yokohama Kanagawa 240-8501 Japan
| | - Masaru Matsugaki
- Department of Advanced Materials Chemistry Graduate School of Engineering Yokohama National University Yokohama Kanagawa 240-8501 Japan
| | - Keisuke Shiota
- Department of Advanced Materials Chemistry Graduate School of Engineering Yokohama National University Yokohama Kanagawa 240-8501 Japan
| | - Yoshitaka Yamaguchi
- Department of Advanced Materials Chemistry Graduate School of Engineering Yokohama National University Yokohama Kanagawa 240-8501 Japan
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21
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Guðmundsson A, Manna S, Bäckvall J. Iron(II)‐Catalyzed Aerobic Biomimetic Oxidation of Amines using a Hybrid Hydroquinone/Cobalt Catalyst as Electron Transfer Mediator. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Arnar Guðmundsson
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University 10691 Stockholm Sweden
| | - Srimanta Manna
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University 10691 Stockholm Sweden
| | - Jan‐E. Bäckvall
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University 10691 Stockholm Sweden
- Department of Natural Sciences Mid Sweden University 85170 Sundsvall Sweden
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22
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Guðmundsson A, Manna S, Bäckvall J. Iron(II)-Catalyzed Aerobic Biomimetic Oxidation of Amines using a Hybrid Hydroquinone/Cobalt Catalyst as Electron Transfer Mediator. Angew Chem Int Ed Engl 2021; 60:11819-11823. [PMID: 33725364 PMCID: PMC8252094 DOI: 10.1002/anie.202102681] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Indexed: 11/30/2022]
Abstract
Herein we report the first FeII -catalyzed aerobic biomimetic oxidation of amines. This oxidation reaction involves several electron transfer steps and is inspired by biological oxidation in the respiratory chain. The electron transfer from the amine to molecular oxygen is aided by two coupled catalytic redox systems, which lower the energy barrier and improve the selectivity of the oxidation reaction. An iron hydrogen transfer complex was utilized as the substrate-selective dehydrogenation catalyst along with a bifunctional hydroquinone/cobalt Schiff base complex as a hybrid electron transfer mediator. Various primary and secondary amines were oxidized in air to their corresponding aldimines or ketimines in good to excellent yield.
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Affiliation(s)
- Arnar Guðmundsson
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
| | - Srimanta Manna
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
| | - Jan‐E. Bäckvall
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
- Department of Natural SciencesMid Sweden University85170SundsvallSweden
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23
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Puls F, Linke P, Kataeva O, Knölker HJ. Iron-Catalyzed Wacker-type Oxidation of Olefins at Room Temperature with 1,3-Diketones or Neocuproine as Ligands*. Angew Chem Int Ed Engl 2021; 60:14083-14090. [PMID: 33856090 PMCID: PMC8251641 DOI: 10.1002/anie.202103222] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Indexed: 11/11/2022]
Abstract
Herein, we describe a convenient and general method for the oxidation of olefins to ketones using either tris(dibenzoylmethanato)iron(III) [Fe(dbm)3 ] or a combination of iron(II) chloride and neocuproine (2,9-dimethyl-1,10-phenanthroline) as catalysts and phenylsilane (PhSiH3 ) as additive. All reactions proceed efficiently at room temperature using air as sole oxidant. This transformation has been applied to a variety of substrates, is operationally simple, proceeds under mild reaction conditions, and shows a high functional-group tolerance. The ketones are formed smoothly in up to 97 % yield and with 100 % regioselectivity, while the corresponding alcohols were observed as by-products. Labeling experiments showed that an incorporated hydrogen atom originates from the phenylsilane. The oxygen atom of the ketone as well as of the alcohol derives from the ambient atmosphere.
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Affiliation(s)
- Florian Puls
- Fakultät Chemie und Lebensmittelchemie, Technische Universität Dresden, Bergstrasse 66, 01069, Dresden, Germany
| | - Philipp Linke
- Fakultät Chemie und Lebensmittelchemie, Technische Universität Dresden, Bergstrasse 66, 01069, Dresden, Germany
| | - Olga Kataeva
- A. E. Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Str. 8, Kazan, 420088, Russia
| | - Hans-Joachim Knölker
- Fakultät Chemie und Lebensmittelchemie, Technische Universität Dresden, Bergstrasse 66, 01069, Dresden, Germany
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24
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Puls F, Linke P, Kataeva O, Knölker H. Iron‐Catalyzed Wacker‐type Oxidation of Olefins at Room Temperature with 1,3‐Diketones or Neocuproine as Ligands**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103222] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Florian Puls
- Fakultät Chemie und Lebensmittelchemie Technische Universität Dresden Bergstrasse 66 01069 Dresden Germany
| | - Philipp Linke
- Fakultät Chemie und Lebensmittelchemie Technische Universität Dresden Bergstrasse 66 01069 Dresden Germany
| | - Olga Kataeva
- A. E. Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific Center Russian Academy of Sciences Arbuzov Str. 8 Kazan 420088 Russia
| | - Hans‐Joachim Knölker
- Fakultät Chemie und Lebensmittelchemie Technische Universität Dresden Bergstrasse 66 01069 Dresden Germany
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25
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Muzart J. Progress in the synthesis of aldehydes from Pd-catalyzed Wacker-type reactions of terminal olefins. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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26
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Metal-catalyzed biomimetic aerobic oxidation of organic substrates. ADVANCES IN CATALYSIS 2021. [DOI: 10.1016/bs.acat.2021.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Liu J, Bäckvall J. Efficient Palladium-Catalyzed Aerobic Oxidative Carbocyclization to Seven-Membered Heterocycles. Chemistry 2020; 26:15513-15518. [PMID: 32960479 PMCID: PMC7894550 DOI: 10.1002/chem.202004265] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Indexed: 11/09/2022]
Abstract
The use of molecular oxygen in palladium-catalyzed oxidation reactions is highly widespread in organic chemistry. However, the direct reoxidation of palladium by O2 is often kinetically unfavored, thus leading the deactivation of the palladium catalyst during the catalytic cycle. In the present work, we report a highly selective palladium-catalyzed carbocyclization of bisallenes to seven-membered heterocycles under atmospheric pressure of O2 . The use of a homogenous hybrid catalyst (Co(salophen)-HQ, HQ=hydroquinone) significantly promotes efficient electron transfer between the palladium catalyst and O2 through a low-energy pathway. This aerobic oxidative transformation shows broad substrate scope and functional group compatibility and allowed the preparation of O-containing seven-membered rings in good yields in most cases.
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Affiliation(s)
- Jie Liu
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
- College of Chemistry and Chemical EngineeringHunan University410082ChangshaP. R. China
| | - Jan‐E. Bäckvall
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
- Department of Natural SciencesMid Sweden UniversityHolmgatan 1085170SundsvallSweden
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28
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Temkin ON. Oxidation of Olefins to Carbonyl Compounds: Modern View of the Classical Reaction. KINETICS AND CATALYSIS 2020. [DOI: 10.1134/s0023158420050122] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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29
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Saha S, Yadav S, Reshi NUD, Dutta I, Kunnikuruvan S, Bera JK. Electronic Asymmetry of an Annelated Pyridyl–Mesoionic Carbene Scaffold: Application in Pd(II)-Catalyzed Wacker-Type Oxidation of Olefins. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02729] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sayantani Saha
- Department of Chemistry and Center for Environmental Science, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Suman Yadav
- Department of Chemistry and Center for Environmental Science, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Noor U Din Reshi
- Department of Chemistry and Center for Environmental Science, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Indranil Dutta
- Department of Chemistry and Center for Environmental Science, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Sooraj Kunnikuruvan
- Department of Chemistry and Center for Environmental Science, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Jitendra K. Bera
- Department of Chemistry and Center for Environmental Science, Indian Institute of Technology Kanpur, Kanpur 208016, India
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30
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Guðmundsson A, Schlipköter KE, Bäckvall J. Iron(II)-Catalyzed Biomimetic Aerobic Oxidation of Alcohols. Angew Chem Int Ed Engl 2020; 59:5403-5406. [PMID: 31999013 PMCID: PMC7154773 DOI: 10.1002/anie.202000054] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Indexed: 12/16/2022]
Abstract
We report the first FeII -catalyzed biomimetic aerobic oxidation of alcohols. The principle of this oxidation, which involves several electron-transfer steps, is reminiscent of biological oxidation in the respiratory chain. The electron transfer from the alcohol to molecular oxygen occurs with the aid of three coupled catalytic redox systems, leading to a low-energy pathway. An iron transfer-hydrogenation complex was utilized as a substrate-selective dehydrogenation catalyst, along with an electron-rich quinone and an oxygen-activating Co(salen)-type complex as electron-transfer mediators. Various primary and secondary alcohols were oxidized in air to the corresponding aldehydes or ketones with this method in good to excellent yields.
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Affiliation(s)
- Arnar Guðmundsson
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
| | - Kim Elisabeth Schlipköter
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
- Current address: Institute of Technical BiocatalysisHamburg University of Technology TUHH21071HamburgGermany
| | - Jan‐E. Bäckvall
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
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31
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Zhu C, Liu J, Mai BK, Himo F, Bäckvall JE. Efficient Stereoselective Carbocyclization to cis-1,4-Disubstituted Heterocycles Enabled by Dual Pd/Electron Transfer Mediator (ETM) Catalysis. J Am Chem Soc 2020; 142:5751-5759. [PMID: 32101690 PMCID: PMC7307908 DOI: 10.1021/jacs.9b13700] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
![]()
An efficient Pd/ETM
(ETM = electron transfer mediator)-cocatalyzed
stereoselective oxidative carbocyclization of dienallenes under aerobic
oxidation conditions has been developed to afford six-membered heterocycles.
The use of a bifunctional cobalt complex [Co(salophen)-HQ] as hybrid
ETM gave a faster aerobic oxidation than the use of separated ETMs,
indicating that intramolecular electron transfer between the hydroquinone
unit and the oxidized metal macrocycle occurs. In this way, a class
of important cis-1,4-disubstituted six-membered heterocycles,
including dihydropyran and tetrahydropyridine derivatives were obtained
in high diastereoselectivity with good functional group compatibility.
The experimental and computational (DFT) studies reveal that the pendent
olefin does not only act as an indispensable element for the initial
allene attack involving allenic C(sp3)–H
bond cleavage, but it also induces a face-selective reaction of the
olefin of the allylic group, leading to a highly diastereoselective
formation of the product. Finally, the deuterium kinetic isotope effects
measured suggest that the initial allenic C(sp3)–H bond cleavage is the rate-limiting step, which
was supported by DFT calculations.
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Affiliation(s)
- Can Zhu
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Jie Liu
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Binh Khanh Mai
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Fahmi Himo
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Jan-E Bäckvall
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden.,Department of Natural Sciences, Mid Sweden University, Holmgatan 10, SE-851 79 Sundsvall, Sweden
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32
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Guðmundsson A, Schlipköter KE, Bäckvall J. Iron(II)‐Catalyzed Biomimetic Aerobic Oxidation of Alcohols. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000054] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Arnar Guðmundsson
- Department of Organic ChemistryArrhenius Laboratory Stockholm University 10691 Stockholm Sweden
| | - Kim Elisabeth Schlipköter
- Department of Organic ChemistryArrhenius Laboratory Stockholm University 10691 Stockholm Sweden
- Current address: Institute of Technical BiocatalysisHamburg University of Technology TUHH 21071 Hamburg Germany
| | - Jan‐E. Bäckvall
- Department of Organic ChemistryArrhenius Laboratory Stockholm University 10691 Stockholm Sweden
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33
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Huang Q, Li YW, Ning XS, Jiang GQ, Zhang XW, Qu JP, Kang YB. Regioselective Wacker-Type Oxidation of Internal Olefins in tBuOH Using Oxygen as the Sole Oxidant and tBuONO as the Organic Redox Cocatalyst. Org Lett 2020; 22:965-969. [PMID: 31971810 DOI: 10.1021/acs.orglett.9b04503] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A regioselective Wacker-Tsuji oxidation of internal olefins in tBuOH has been developed using oxygen as the terminal oxidant and tert-butyl nitrite as the simple organic redox cocatalyst without the involvement of hazardous cocatalysts or harsh reaction conditions. A series of internal olefins bearing various functional groups can be oxidized to the corresponding substituted ketones in generally good yields with high regioselectivities.
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Affiliation(s)
- Qing Huang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Ya-Wei Li
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Xiao-Shan Ning
- Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Guo-Qing Jiang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Xiao-Wei Zhang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Jian-Ping Qu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Yan-Biao Kang
- Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , China
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34
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Dorado V, Gil L, Mayoral JA, Herrerías CI, Fraile JM. Synthesis of fatty ketoesters by tandem epoxidation–rearrangement with heterogeneous catalysis. Catal Sci Technol 2020. [DOI: 10.1039/c9cy01899a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fatty ketoesters are obtained from unsaturated fatty esters in a tandem two-step process with a combination of two heterogeneous catalysts, without intermediate purification and with maximum productivity of the catalysts through recycling and reuse.
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Affiliation(s)
- Vicente Dorado
- Departamento de Catálisis y Procesos Catalíticos
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - Lena Gil
- Departamento de Catálisis y Procesos Catalíticos
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - José A. Mayoral
- Departamento de Catálisis y Procesos Catalíticos
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - Clara I. Herrerías
- Departamento de Catálisis y Procesos Catalíticos
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - José M. Fraile
- Departamento de Catálisis y Procesos Catalíticos
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
- Spain
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Muhaimin M, Syamsurizal S, Latief M, Iskandar R, Chaerunisaa AY, Mujahidin D. Synthesis of 7,3'-Epoxy-8,4'-Oxyneolignane-1’-Carboxylic Acid from Natural Eusiderin A and its Activity Against Trichophyton mentagrophytes. CURRENT ORGANOCATALYSIS 2019. [DOI: 10.2174/2213337206666190730144041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:Eusiderin A is a neolignan derivate, which makes up the majority of the secondary metabolite of Eusideroxylon zwageri. It has been reported as a potent biopesticide and antifungal agent. Previous studies on the oxidation of terminal methylene of the allylic chain in Eusiderin A have been able to produce primary alcohol, pinacol, and an aldehyde which demonstrated strong activity against plant pathogenic fungi, therefore activity against dermal fungi needs to be studied.Objective:The current study aims to improve the hydrophilicity of Eusiderin A via oxidation of the allylic chain in order to derive a potent antifungal property.Methods:Transformation of Eusiderin A has been achieved by using the Wacker Oxidation Method in combination with the α-Hydroxylation-Ketone Method to produce 7,3’-epoxy-8,4’-oxyneolignane-1’- carboxylic acid. The structure of the 7,3’-epoxy-8,4’-oxyneolignane-1’-carboxylic acid was identified from spectroscopy data. The in vitro antifungal activity study was performed using the paper disc diffusion method against Trichophyton mentagrophytes.Results:New molecule of natural Eusiderin A through the oxidation of the allylic chain to increase the hydrophilicity of Eusiderin A has been designed. Based on the observed UV, IR, 1H and 13C-NMR, and MS spectra, it can be stated that the 7,3’-epoxy-8,4’-oxyneolignane-1’-carboxylic acid has been formed. At a concentration of 50 ppm, this compound showed antifungal activity against Trichophyton mentagrophytes.Conclusion:It can be concluded that the 7,3’-epoxy-8,4’-oxyneolignane-1’-carboxylic acid is a potent antifungal agent as it is able to inhibit the Trichophyton mentagrophytes colonies growth.
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Affiliation(s)
- Muhaimin Muhaimin
- Department of Chemistry Education, Faculty of Education, University of Jambi, Jambi, Indonesia
| | - Syamsurizal Syamsurizal
- Department of Chemistry Education, Faculty of Education, University of Jambi, Jambi, Indonesia
| | - Madyawati Latief
- Department of Chemistry, Faculty of Science and Technology, University of Jambi, Jambi, Indonesia
| | - Rahmi Iskandar
- Department of Chemistry, Faculty of Science and Technology, University of Jambi, Jambi, Indonesia
| | | | - Didin Mujahidin
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Bandung, Indonesia
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Abril P, Del Río MP, López JA, Lledós A, Ciriano MA, Tejel C. Inner-Sphere Oxygen Activation Promoting Outer-Sphere Nucleophilic Attack on Olefins. Chemistry 2019; 25:14546-14554. [PMID: 31432579 DOI: 10.1002/chem.201903068] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/19/2019] [Indexed: 01/18/2023]
Abstract
Alkoxylation and hydroxylation reactions of 1,5-cyclooctadiene (cod) in an iridium complex with alcohols and water promoted by the reduction of oxygen to hydrogen peroxide are described. The exo configuration of the OH/OR groups in the products agrees with nucleophilic attack at the external face of the olefin as the key step. The reactions also require the presence of a coordinating protic acid (such as picolinic acid (Hpic)) and involve the participation of a cationic diolefin iridium(III) complex, [Ir(cod)(pic)2 ]+ , which has been isolated. Independently, this cation is also involved in easy alkoxy group exchange reactions, which are very unusual for organic ethers. DFT studies on the mechanism of olefin alkoxylation mediated by oxygen show a low-energy proton-coupled electron-transfer step connecting a superoxide-iridium(II) complex with hydroperoxide-iridium(III) intermediates, rather than peroxide complexes. Accordingly, a more complex reaction, with up to four different products, occurred upon reacting the diolefin-peroxide iridium(III) complex with Hpic. Moreover, such hydroperoxide intermediates are the origin of the regio- and stereoselectivity of the hydroxylation/alkoxylation reactions. If this protocol is applied to the diolefin-rhodium(I) complex [Rh(pic)(cod)], free alkyl ethers ORC8 H11 (R=Me, Et) resulted, and the reaction is enantioselective if a chiral amino acid, such as l-proline, is used instead of Hpic.
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Affiliation(s)
- Paula Abril
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - M Pilar Del Río
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - José A López
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Agustí Lledós
- Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - Miguel A Ciriano
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Cristina Tejel
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
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Thopate Y, Singh R, Rastogi SK, Sinha AK. A Highly Regioselective and Practical Synthesis of α‐Aryl Ketones under a Cooperative Cascade Effect of an Ionic Liquid and Tetrabutylammonium Fluoride. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900513] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yogesh Thopate
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031 India
- Academy of Scientific and Innovative Research New Delhi India
| | - Richa Singh
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031 India
| | - Sumit K. Rastogi
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031 India
- Academy of Scientific and Innovative Research New Delhi India
| | - Arun K. Sinha
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031 India
- Academy of Scientific and Innovative Research New Delhi India
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Brunzel T, Heppekausen J, Panten J, Köckritz A. Selective Wacker type oxidation of a macrocyclic diene to the corresponding monounsaturated ketone used as fragrance. RSC Adv 2019; 9:27865-27873. [PMID: 35530498 PMCID: PMC9070781 DOI: 10.1039/c9ra04971a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 08/24/2019] [Indexed: 11/21/2022] Open
Abstract
A selective reaction method for the efficient conversion of an isomeric mixture of 1,9-cyclohexadecadiene (1,9-CHDD) to the corresponding monounsaturated cyclohexadec-8-en-1-one (8-CHD) is described. 8-CHD was synthesized via Wacker type oxidation at room temperature using a highly electrophilic in situ formed dicationic palladium species. Isomerisation of the diene and over-oxidation of the substrate could be nearly suppressed by suitable reaction control, which has a positive effect on selectivity. The utilization of molecular oxygen as a green oxidant and environmentally benign iron(iii) salts as co-catalysts was successfully applied. This reaction strategy is promising to overcome the low overall reactivity of internal olefins in Wacker type oxidations. In addition, larger scale experiments showed further potential for industrial application. A selective reaction method for the efficient conversion of an isomeric mixture of 1,9-cyclohexadecadiene (1,9-CHDD) to the corresponding monounsaturated cyclohexadec-8-en-1-one (8-CHD) is described.![]()
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Affiliation(s)
- Tom Brunzel
- Leibniz Institute for Catalysis at the University of Rostock Albert-Einstein-Straße 29a 18059 Rostock Germany
| | | | | | - Angela Köckritz
- Leibniz Institute for Catalysis at the University of Rostock Albert-Einstein-Straße 29a 18059 Rostock Germany
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Li X, Rao J, Ouyang W, Chen Q, Cai N, Lu YJ, Huo Y. Sequential C–H and C–C Bond Cleavage: Divergent Constructions of Fused N-Heterocycles via Tunable Cascade. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03091] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xianwei Li
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Jianhang Rao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Wensen Ouyang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Qian Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Ning Cai
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yu-Jing Lu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
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41
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Hu M, Wu W, Jiang H. Palladium-Catalyzed Oxidation Reactions of Alkenes with Green Oxidants. CHEMSUSCHEM 2019; 12:2911-2935. [PMID: 30989816 DOI: 10.1002/cssc.201900397] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/09/2019] [Indexed: 06/09/2023]
Abstract
Transition-metal-catalyzed oxidative functionalization of alkenes has emerged as a powerful and valuable tool in modern organic synthesis. Recently, many methods have been established for the assembly of C-C and C-heteroatom bonds, which provides tremendous possibility for application in biology, medicine, and materials science. However, the use of stoichiometric amounts of strong oxidants leads to poor selectivity, low atom economy, and a series of undesired waste products. By contrast, green oxidants, such as O2 , H2 O2 , or tert-butyl hydroperoxide (TBHP), have bright prospects due to their attributes of mild, low cost, and great sustainability in transition-metal-catalyzed oxidation reactions. Based on the great and unique potential for the development of aerobic reactions, this review mainly highlights homogenous palladium-catalyzed green oxidations of alkenes that have been reported in recent years. These methods provide new strategies for the transformation and functionalization of alkenes; some of them have also been successfully applied to the synthesis of the core structures of drugs and natural products. Additionally, through in-depth studies of the reaction mechanisms in this field, it is believed that palladium-catalyzed green oxidation reactions of alkenes with O2 , H2 O2 , or TBHP will create added value for organic synthetic chemistry.
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Affiliation(s)
- Miao Hu
- Key Laboratory of Functional Molecular Engineering of, Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, PR China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of, Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, PR China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of, Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, PR China
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42
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Carlson AS, Topczewski JJ. Allylic azides: synthesis, reactivity, and the Winstein rearrangement. Org Biomol Chem 2019; 17:4406-4429. [PMID: 30969292 PMCID: PMC6530792 DOI: 10.1039/c8ob03178a] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Organic azides are useful synthetic intermediates, which demonstrate broad reactivity. Unlike most organic azides, allylic azides can spontaneously rearrange to form a mixture of isomers. This rearrangement has been named the Winstein rearrangement. Using allylic azides can result in low yields and azide racemization in some synthetic contexts due to the Winstein rearrangement. Effort has been made to understand the mechanism of the Winstein rearrangement and to take advantage of this process. Several guiding principles can be used to identify which azides will produce a mixture of isomers and which will resist rearrangement. Selective reaction conditions can be used to differentiate the azide isomers in a dynamic manner. This review covers all aspects of allylic azides including their synthesis, their reactivity, the mechanism of the Winstein rearrangement, and reactions that can selectively elaborate an azide isomer. This review covers the literature from Winstein's initial report to early 2019.
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Affiliation(s)
- Angela S Carlson
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455, USA.
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44
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Chiu HC, See XY, Tonks IA. Dative Directing Group Effects in Ti-Catalyzed [2+2+1] Pyrrole Synthesis: Chemo- and Regioselective Alkyne Heterocoupling. ACS Catal 2019; 9:216-223. [PMID: 31768294 DOI: 10.1021/acscatal.8b04669] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Transient dative substrate-Ti interactions have been found to play a key role in controlling the regioselectivity of alkyne insertion and [2+2] cycloaddition in Ti-catalyzed [2+2+1] pyrrole synthesis and Ti-catalyzed alkyne hydroamination. TMS-protected alkynes with pendent Lewis basic groups can invert the regioselectivity of TMS-protected alkyne insertion, leading to the selective formation of highly substituted 3-TMS pyrroles. The competency of various potential directing groups was investigated, and it was found that the directing-group effect can be tuned by modifying the catalyst Lewis acidity, the directing-group basicity, or the directing-group tether length. Dative directing-group effects are unexplored with Ti catalysts, and this study demonstrates the potential power of dative substrate-Ti interactions in tuning selectivity.
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Affiliation(s)
- Hsin-Chun Chiu
- Department of Chemistry, University of Minnesota−Twin Cities, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Xin Yi See
- Department of Chemistry, University of Minnesota−Twin Cities, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Ian A. Tonks
- Department of Chemistry, University of Minnesota−Twin Cities, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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45
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Liu J, Ricke A, Yang B, Bäckvall J. Efficient Palladium-Catalyzed Aerobic Arylative Carbocyclization of Enallenynes. Angew Chem Int Ed Engl 2018; 57:16842-16846. [PMID: 30351460 PMCID: PMC6471031 DOI: 10.1002/anie.201810501] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Indexed: 12/12/2022]
Abstract
Herein, we communicate a selective and efficient protocol for oxidative arylating carbocyclization of enallenynes using O2 as the oxidant. The key to success for this aerobic transformation is the application of a specific electron transfer mediator (ETM), a bifunctional catalyst consisting of a metal-macrocycle and quinone moieties. This catalyst significantly facilitates the reoxidation of Pd0 to PdII under atmospheric pressure of O2 . Diverse functionalized enallenynes react with aryl boronic acids to afford the corresponding cyclic tetraenes in moderate to good yields.
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Affiliation(s)
- Jie Liu
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University10691StockholmSweden
| | - Alexander Ricke
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University10691StockholmSweden
| | - Bin Yang
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University10691StockholmSweden
| | - Jan‐E. Bäckvall
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University10691StockholmSweden
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46
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Liu J, Ricke A, Yang B, Bäckvall J. Efficient Palladium‐Catalyzed Aerobic Arylative Carbocyclization of Enallenynes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810501] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Jie Liu
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University 10691 Stockholm Sweden
| | - Alexander Ricke
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University 10691 Stockholm Sweden
| | - Bin Yang
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University 10691 Stockholm Sweden
| | - Jan‐E. Bäckvall
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University 10691 Stockholm Sweden
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Shaikh RR, Khan RA, Alsalme A. Highly product-selective and scalable rare-earth metal-catalyzed Meinwald rearrangement of epoxy oleochemicals under solvent-free conditions. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.03.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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48
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Carlson AS, Calcanas C, Brunner RM, Topczewski JJ. Regiocontrolled Wacker Oxidation of Cinnamyl Azides. Org Lett 2018; 20:1604-1607. [PMID: 29498865 DOI: 10.1021/acs.orglett.8b00344] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly regioselective Wacker oxidation has been developed for the oxidation of cinnamyl azides. The catalytic oxidation tolerates the azide functionality, and more than 15 β-azido ketones were isolated (25-92% yield). High regioselectivity for the aryl ketone is observed in all cases. A robustness screen was conducted to determine functional group tolerance. The products of the oxidaiton can be readily diversified.
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Affiliation(s)
- Angela S Carlson
- Department of Chemistry , University of Minnesota Twin Cities , Minneapolis , Minnesota 55455 , United States
| | - Cristian Calcanas
- Department of Chemistry , University of Minnesota Twin Cities , Minneapolis , Minnesota 55455 , United States
| | - Ryan M Brunner
- Department of Chemistry , University of Minnesota Twin Cities , Minneapolis , Minnesota 55455 , United States
| | - Joseph J Topczewski
- Department of Chemistry , University of Minnesota Twin Cities , Minneapolis , Minnesota 55455 , United States
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Zhang Z, Kumamoto Y, Hashiguchi T, Mamba T, Murayama H, Yamamoto E, Ishida T, Honma T, Tokunaga M. Wacker Oxidation of Terminal Alkenes Over ZrO 2 -Supported Pd Nanoparticles Under Acid- and Cocatalyst-Free Conditions. CHEMSUSCHEM 2017; 10:3482-3489. [PMID: 28834377 DOI: 10.1002/cssc.201701016] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 07/04/2017] [Indexed: 06/07/2023]
Abstract
Highly efficient Wacker oxidation of aromatic or aliphatic terminal alkenes into methyl ketones and benzofurans is developed by using reusable Pd0 nanoparticles (NPs) supported on ZrO2 under acid- and cocatalyst-free conditions. Molecular oxygen or air can be utilized as the terminal oxidant, which results in the formation of H2 O as the only theoretical byproduct. The activation of the Pd NPs by O2 plays an important role in promoting this reaction. Interestingly, PdO supported on ZrO2 showed no activity. Additionally, the Pd particle size significantly affects the catalytic activity, with an apparent optimal diameter of 4-12 nm. In addition to the heterogeneous catalyst forms, the Pd NPs can be generated from a Pd0 complex during the reaction, and these particles are even recyclable.
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Affiliation(s)
- Zhenzhong Zhang
- Department of Chemistry, Graduate School of Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Yuhya Kumamoto
- Department of Chemistry, Graduate School of Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Taishin Hashiguchi
- Department of Chemistry, Graduate School of Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Tetsuya Mamba
- Department of Chemistry, Graduate School of Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Haruno Murayama
- Department of Chemistry, Graduate School of Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Eiji Yamamoto
- Department of Chemistry, Graduate School of Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Tamao Ishida
- Research Center for Gold Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa Hachioji, Tokyo, 192-0397, Japan
| | - Tetsuo Honma
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, Sayo, Hyougo, 679-8198, Japan
| | - Makoto Tokunaga
- Department of Chemistry, Graduate School of Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
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Liu B, Jin F, Wang T, Yuan X, Han W. Wacker‐Type Oxidation Using an Iron Catalyst and Ambient Air: Application to Late‐Stage Oxidation of Complex Molecules. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Binbin Liu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Jiangsu Key Laboratory of Biofunctional Materials School of Chemistry and Materials Science Nanjing Normal University Wenyuan Road No.1 210023 Nanjing China
| | - Fengli Jin
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Jiangsu Key Laboratory of Biofunctional Materials School of Chemistry and Materials Science Nanjing Normal University Wenyuan Road No.1 210023 Nanjing China
| | - Tianjiao Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Jiangsu Key Laboratory of Biofunctional Materials School of Chemistry and Materials Science Nanjing Normal University Wenyuan Road No.1 210023 Nanjing China
| | - Xiaorong Yuan
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Jiangsu Key Laboratory of Biofunctional Materials School of Chemistry and Materials Science Nanjing Normal University Wenyuan Road No.1 210023 Nanjing China
| | - Wei Han
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Jiangsu Key Laboratory of Biofunctional Materials School of Chemistry and Materials Science Nanjing Normal University Wenyuan Road No.1 210023 Nanjing China
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