1
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Berrino E, Cantin T, Artault M, Beck S, Jessen C, Marrot J, Guégan F, Mingot A, Kornath A, Thibaudeau S. Accumulation, Characterization and Reactivity of Chiral Ammonium-Carboxonium Dications in Superacid. Angew Chem Int Ed Engl 2024; 63:e202404066. [PMID: 38587216 DOI: 10.1002/anie.202404066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/28/2024] [Accepted: 03/28/2024] [Indexed: 04/09/2024]
Abstract
The accumulation of chiral ammonium-oxocarbenium dications in superacid is evidenced by low-temperature NMR spectroscopy, X-ray diffraction analysis and confirmed by DFT calculations. Its potential for the diastereoselective remote hydrofunctionalization of non-activated alkene is also explored.
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Affiliation(s)
- Emanuela Berrino
- IC2MP UMR CNRS 7285, Université de Poitiers, 4 rue Michel, Brunet, 86073 Poitiers cedex 9, France
| | - Thomas Cantin
- IC2MP UMR CNRS 7285, Université de Poitiers, 4 rue Michel, Brunet, 86073 Poitiers cedex 9, France
| | - Maxime Artault
- IC2MP UMR CNRS 7285, Université de Poitiers, 4 rue Michel, Brunet, 86073 Poitiers cedex 9, France
| | - Stefanie Beck
- Department of Chemistry, Ludwig-Maximilian University of Munich, Butenandtstr. 5-13, D-81377, München, Germany
| | - Christoph Jessen
- Department of Chemistry, Ludwig-Maximilian University of Munich, Butenandtstr. 5-13, D-81377, München, Germany
| | - Jérôme Marrot
- UMR CNRS 8180, 45 avenue des États-Unis, 78035, Versailles Cedex, France
| | - Frédéric Guégan
- IC2MP UMR CNRS 7285, Université de Poitiers, 4 rue Michel, Brunet, 86073 Poitiers cedex 9, France
| | - Agnès Mingot
- IC2MP UMR CNRS 7285, Université de Poitiers, 4 rue Michel, Brunet, 86073 Poitiers cedex 9, France
| | - Andreas Kornath
- Department of Chemistry, Ludwig-Maximilian University of Munich, Butenandtstr. 5-13, D-81377, München, Germany
| | - Sébastien Thibaudeau
- IC2MP UMR CNRS 7285, Université de Poitiers, 4 rue Michel, Brunet, 86073 Poitiers cedex 9, France
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2
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Scheelje FCM, Meier MAR. Non-isocyanate polyurethanes synthesized from terpenes using thiourea organocatalysis and thiol-ene-chemistry. Commun Chem 2023; 6:239. [PMID: 37925584 PMCID: PMC10625552 DOI: 10.1038/s42004-023-01041-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 10/24/2023] [Indexed: 11/06/2023] Open
Abstract
The depletion of fossil resources as well as environmental concerns contribute to an increasing focus on finding more sustainable approaches for the synthesis of polymeric materials. In this work, a synthesis route towards non-isocyanate polyurethanes (NIPUs) using renewable starting materials is presented. Based on the terpenes limonene and carvone as renewable resources, five-membered cyclic carbonates are synthesized and ring-opened with allylamine, using thiourea compounds as benign and efficient organocatalysts. Thus, five renewable AA monomers are obtained, bearing one or two urethane units. Taking advantage of the terminal double bonds of these AA monomers, step-growth thiol-ene polymerization is performed using different dithiols, to yield NIPUs with molecular weights of above 10 kDa under mild conditions. Variation of the dithiol and amine leads to polymers with different properties, with Mn of up to 31 kDa and Tg's ranging from 1 to 29 °C.
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Affiliation(s)
- Frieda Clara M Scheelje
- Laboratory of Applied Chemistry, Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Straße am Forum 7, 76131, Karlsruhe, Germany
| | - Michael A R Meier
- Laboratory of Applied Chemistry, Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Straße am Forum 7, 76131, Karlsruhe, Germany.
- Laboratory of Applied Chemistry, Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
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3
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Srinivasappa PM, Prasad D, Chaudhari NK, Samal AK, Thapa R, Siddharthan EE, Jadhav AH. Trimetallic Oxide Foam as an Efficient Catalyst for Fixation of CO 2 into Oxazolidinone: An Experimental and Theoretical Approach. ACS APPLIED MATERIALS & INTERFACES 2023; 15:21994-22011. [PMID: 37114882 DOI: 10.1021/acsami.2c23019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The excess anthropogenic CO2 depletion via the catalytic approach to produce valuable chemicals is an industrially challenging, demanding, and encouraging strategy for CO2 fixation. Herein, we demonstrate a selective one-pot strategy for CO2 fixation into "oxazolidinone" by employing stable porous trimetallic oxide foam (PTOF) as a new catalyst. The PTOF catalyst was synthesized by a solution combustion method using transition metals Cu, Co, and Ni and systematically characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HR-TEM), N2 sorption, temperature-programmed desorption (TPD), and X-ray photoelectron spectroscopy (XPS) analysis. Due to the distinctive synthesis method and unique combination of metal oxides and their percentage, the PTOF catalyst displayed highly interconnected porous channels along with uniformly distributed active sites on its surface. Well ahead, the PTOF catalyst was screened for the fixation of CO2 into oxazolidinone. The screened and optimized reaction parameters revealed that the PTOF catalyst showed highly efficient and selective activity with 100% conversion of aniline along with 96% selectivity and yield toward the oxazolidinone product at mild and solvent-free reaction conditions. The superiority of the catalytic performance could be due to the presence of surface active sites and acid-base cooperative synergistic properties of the mixed metal oxides. A doubly synergistic plausible reaction mechanism was proposed for the oxazolidinone synthesis experimentally with the support of DFT calculations along with bond lengths, bond angles, and binding energies. In addition, stepwise intermediate formations with the free energy profile were also proposed. Also, the PTOF catalyst displayed good tolerance toward substituted aromatic amines and terminal epoxides for the fixation of CO2 into oxazolidinones. Very interestingly, the PTOF catalyst could be significantly reused for up to 15 consecutive cycles with stable activity and retention in physicochemical properties.
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Affiliation(s)
- Puneethkumar M Srinivasappa
- Centre for Nano and Material Science, JAIN University, Jain Global Campus, Bangalore 562112, Karnataka, India
| | - Divya Prasad
- Centre for Nano and Material Science, JAIN University, Jain Global Campus, Bangalore 562112, Karnataka, India
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Nitin K Chaudhari
- Department of Chemistry, School of Technology, Pandit Deendayal Petroleum University, Gandhinagar 382007, Gujarat, India
| | - Akshaya K Samal
- Centre for Nano and Material Science, JAIN University, Jain Global Campus, Bangalore 562112, Karnataka, India
| | - Ranjit Thapa
- Department of Physics, SRM University─AP, Amaravati 522240, Andhra Pradesh, India
| | | | - Arvind H Jadhav
- Centre for Nano and Material Science, JAIN University, Jain Global Campus, Bangalore 562112, Karnataka, India
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4
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Conti R, Widera A, Müller G, Fekete C, Thöny D, Eiler F, Benkő Z, Grützmacher H. Organocatalyzed Phospha-Michael Addition: A Highly Efficient Synthesis of Customized Bis(acyl)phosphane Oxide Photoinitiators. Chemistry 2023; 29:e202202563. [PMID: 36200550 PMCID: PMC10100105 DOI: 10.1002/chem.202202563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Indexed: 11/05/2022]
Abstract
Addition of the P-H bond in bis(mesitoyl)phosphine, HP(COMes)2 (BAPH), to a wide variety of activated carbon-carbon double bonds as acceptors was investigated. While this phospha-Michael addition does not proceed in the absence of an additive or catalyst, excellent results were obtained with stoichiometric basic potassium or caesium salts. Simple amine bases can be employed in catalytic amounts, and tetramethylguanidine (TMG) in particular is an outstanding catalyst that allows the preparation of bis(acyl)phosphines, R-P(COMes)2 , under very mild conditions in excellent yields after only a short time. All phosphines RP(COMes)2 can subsequently be oxidized to the corresponding bis(acyl)phosphane oxides, RPO(COMes)2 , a substance class belonging to the most potent photoinitiators for radical polymerizations known to date. Thus, a simple and highly atom economic method has been found that allows the preparation of a broad range of photoinitiators adapted to their specific field of application even on a large scale.
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Affiliation(s)
- Riccardo Conti
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, 8093, Zürich, Switzerland
| | - Anna Widera
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, 8093, Zürich, Switzerland
| | - Georgina Müller
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, 8093, Zürich, Switzerland
| | - Csilla Fekete
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, 1111, Budapest, Műegyetem rakpart 3., Hungary
| | - Debora Thöny
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, 8093, Zürich, Switzerland
| | - Frederik Eiler
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, 8093, Zürich, Switzerland
| | - Zoltán Benkő
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, 1111, Budapest, Műegyetem rakpart 3., Hungary.,ELKH-BME Computation Driven Chemistry Research Group, 1111, Budapest, Műegyetem rakpart 3., Hungary
| | - Hansjörg Grützmacher
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, 8093, Zürich, Switzerland
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5
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Qaroush AK, Alsayyed AW, Eftaiha AF, Al‐Qaisi FM, Salameh BA. Green Microwave‐Assisted Synthesis of Cyclic/Acyclic Ureas from Propylene Carbonate. ChemistrySelect 2022. [DOI: 10.1002/slct.202200478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
| | - Ahed W. Alsayyed
- Department of Chemistry The University of Jordan Amman 11942 Jordan
| | - Ala'a F. Eftaiha
- Department of Chemistry Faculty of Science The Hashemite University P.O. Box 330127 Zarqa 13133 Jordan
| | - Feda'a M. Al‐Qaisi
- Department of Chemistry Faculty of Science The Hashemite University P.O. Box 330127 Zarqa 13133 Jordan
| | - Bader A. Salameh
- Department of Chemistry Faculty of Science The Hashemite University P.O. Box 330127 Zarqa 13133 Jordan
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6
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Inam AKS, Costa Angeli MA, Shkodra B, Douaki A, Avancini E, Magagnin L, Petti L, Lugli P. Flexible Screen-Printed Electrochemical Sensors Functionalized with Electrodeposited Copper for Nitrate Detection in Water. ACS OMEGA 2021; 6:33523-33532. [PMID: 34926901 PMCID: PMC8675019 DOI: 10.1021/acsomega.1c04296] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 11/02/2021] [Indexed: 05/15/2023]
Abstract
Nitrate (NO3 -) contamination is becoming a major concern due to the negative effects of an excessive NO3 - presence in water which can have detrimental effects on human health. Sensitive, real-time, low-cost, and portable measurement systems able to detect extremely low concentrations of NO3 - in water are thus becoming extremely important. In this work, we present a novel method to realize a low-cost and easy to fabricate amperometric sensor capable of detecting small concentrations of NO3 - in real water samples. The novel fabrication technique combines printing of a silver (Ag) working electrode with subsequent modification of the electrode with electrodeposited copper (Cu) nanoclusters. The process was tuned in order to reach optimized sensor response, with a high catalytic activity toward electroreduction of NO3 - (sensitivity: 19.578 μA/mM), as well as a low limit of detection (LOD: 0.207 nM or 0.012 μg/L) and a good dynamic linear concentration range (0.05 to 5 mM or 31 to 310 mg/L). The sensors were tested against possible interference analytes (NO2 -, Cl-, SO4 2-, HCO3 -, CH3COO-, Fe2+, Fe3+, Mn2+, Na+, and Cu2+) yielding only negligible effects [maximum standard deviation (SD) was 3.9 μA]. The proposed sensors were also used to detect NO3 - in real samples, including tap and river water, through the standard addition method, and the results were compared with the outcomes of high-performance liquid chromatography (HPLC). Temperature stability (maximum SD 3.09 μA), stability over time (maximum SD 3.69 μA), reproducibility (maximum SD 3.20 μA), and repeatability (maximum two-time useable) of this sensor were also investigated.
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Affiliation(s)
- A. K.
M. S. Inam
- Faculty
of Science and Technology, Free University
of Bozen-Bolzano, Bolzano 39100, Italy
- Department
of Nutrition and Food Engineering, Daffodil
International University, Dhaka 1207, Bangladesh
| | | | - Bajramshahe Shkodra
- Faculty
of Science and Technology, Free University
of Bozen-Bolzano, Bolzano 39100, Italy
| | - Ali Douaki
- Faculty
of Science and Technology, Free University
of Bozen-Bolzano, Bolzano 39100, Italy
| | - Enrico Avancini
- Faculty
of Science and Technology, Free University
of Bozen-Bolzano, Bolzano 39100, Italy
| | - Luca Magagnin
- Department
of Chemistry, Materials and Chemical Engineering
“Giulio Natta”, Politecnico di Milano, Milano 20133, Italy
| | - Luisa Petti
- Faculty
of Science and Technology, Free University
of Bozen-Bolzano, Bolzano 39100, Italy
| | - Paolo Lugli
- Faculty
of Science and Technology, Free University
of Bozen-Bolzano, Bolzano 39100, Italy
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7
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Wani AA, Chourasiya SS, Kathuria D, Bharatam PV. 1,1-Diaminoazines as organocatalysts in phospha-Michael addition reactions. Chem Commun (Camb) 2021; 57:11717-11720. [PMID: 34697617 DOI: 10.1039/d1cc04657h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
1,1-Diaminoazines can act as effective organocatalysts for the formation of phosphorus-carbon bonds between biphenylphosphine oxide and an activated alkene (Michael acceptor). These catalysts provide the P-C adducts at a faster rate and with relatively better yields in comparison to the organocatalysts employed earlier. The notable advantage is that 1,1-diaminoazines catalyse the reaction even in an aqueous medium with very good yields. Organocatalysis using 1,1-diaminoazines was also successfully carried out between dimethylphosphite and benzylidenemalononitrile under multicomponent conditions.
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Affiliation(s)
- Aabid A Wani
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), SAS Nagar, Punjab, 160062, India.
| | - Sumit S Chourasiya
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), SAS Nagar, Punjab, 160062, India.
| | - Deepika Kathuria
- University Center for Research and Development, Department of Chemistry, Chandigarh University, Gharuan, Punjab 140413, India
| | - Prasad V Bharatam
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), SAS Nagar, Punjab, 160062, India.
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8
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Álvarez‐Miguel L, Burgoa JD, Mosquera MEG, Hamilton A, Whiteoak CJ. Catalytic Formation of Cyclic Carbonates using Gallium Aminotrisphenolate Compounds and Comparison to their Aluminium Congeners: A Combined Experimental and Computational Study. ChemCatChem 2021. [DOI: 10.1002/cctc.202100910] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Lucía Álvarez‐Miguel
- Department of Organic and Inorganic Chemistry and Research Institute in Chemistry “Andrés M. del Río” (IQAR) Universidad de Alcalá Campus Universitario 28871 Alcalá de Henares Madrid Spain
| | - Jesús Damián Burgoa
- Department of Organic and Inorganic Chemistry and Research Institute in Chemistry “Andrés M. del Río” (IQAR) Universidad de Alcalá Campus Universitario 28871 Alcalá de Henares Madrid Spain
| | - Marta E. G. Mosquera
- Department of Organic and Inorganic Chemistry and Research Institute in Chemistry “Andrés M. del Río” (IQAR) Universidad de Alcalá Campus Universitario 28871 Alcalá de Henares Madrid Spain
| | - Alex Hamilton
- Biomolecular Sciences Research Centre (BMRC) and Department of Biosciences and Chemistry College of Health, Wellbeing and Life Sciences Sheffield Hallam University Howard Street Sheffield S1 1WB United Kingdom
| | - Christopher J. Whiteoak
- Department of Organic and Inorganic Chemistry and Research Institute in Chemistry “Andrés M. del Río” (IQAR) Universidad de Alcalá Campus Universitario 28871 Alcalá de Henares Madrid Spain
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9
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Semrád H, Mazal C, Munzarová M. Free Radical Isomerizations in Acetylene Bromoboration Reaction. Molecules 2021; 26:2501. [PMID: 33922945 PMCID: PMC8123272 DOI: 10.3390/molecules26092501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/16/2021] [Accepted: 04/22/2021] [Indexed: 11/16/2022] Open
Abstract
The experimentally motivated question of the acetylene bromoboration mechanism was addressed in order to suggest possible radical isomerization pathways for the syn-adduct. Addition-elimination mechanisms starting with a bromine radical attack at the "bromine end" or the "boron end" of the C=C bond were considered. Dispersion-corrected DFT and MP2 methods with the SMD solvation model were employed using three all-electron bases as well as the ECP28MWB ansatz. The rate-determining, elimination step had a higher activation energy (12 kcal mol-1) in case of the "bromine end" attack due to intermediate stabilization at both the MP2 and DFT levels. In case of the "boron end" attack, two modes of C-C bond rotation were followed and striking differences in MP2 vs. DFT potential energy surfaces were observed. Employing MP2, addition was followed by either a 180° rotation through an eclipsed conformation of vicinal bromine atoms or by an opposite rotation avoiding that conformation, with 5 kcal mol-1 of elimination activation energy. Within B3LYP, the addition and rotation proceeded simultaneously, with a 9 (7) kcal mol-1 barrier for rotation involving (avoiding) eclipsed conformation of vicinal bromines. For weakly bound complexes, ZPE corrections with MP2 revealed significant artifacts when diffuse bases were included, which must be considered in the Gibbs free energy profile interpretation.
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Affiliation(s)
| | | | - Markéta Munzarová
- Department of Chemistry, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic; (H.S.); (C.M.)
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10
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The photocatalytic antibacterial behavior of Cu-doped nanocrystalline hematite prepared by mechanical alloying. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-020-01659-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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11
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Montecinos R, Aliaga ME, Pavez P, Cornejo P, Santos JG. Nucleofugality hierarchy, in the aminolysis reaction of 4-cyanophenyl 4-nitrophenyl carbonate and thionocarbonate. Experimental and theoretical study. NEW J CHEM 2021. [DOI: 10.1039/d0nj05837h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Brønsted plot of the reaction of 9 with secondary alicyclic amines. The concave upward non-linear plot is in accordance with two parallel mechanistic pathways.
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Affiliation(s)
- Rodrigo Montecinos
- Departamento de Quimica Fisica
- Facultad de Química y de Farmacia
- Pontificia Universidad Católica de Chile
- Santiago
- Chile
| | - Margarita E. Aliaga
- Departamento de Quimica Fisica
- Facultad de Química y de Farmacia
- Pontificia Universidad Católica de Chile
- Santiago
- Chile
| | - Paulina Pavez
- Departamento de Quimica Fisica
- Facultad de Química y de Farmacia
- Pontificia Universidad Católica de Chile
- Santiago
- Chile
| | - Patricio Cornejo
- Departamento de Quimica Fisica
- Facultad de Química y de Farmacia
- Pontificia Universidad Católica de Chile
- Santiago
- Chile
| | - José G. Santos
- Departamento de Quimica Fisica
- Facultad de Química y de Farmacia
- Pontificia Universidad Católica de Chile
- Santiago
- Chile
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12
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Luo S, Liu X, Wei X, Fu M, Lu P, Li X, Jia Y, Ren Q, He Y. Noble-metal-free cobaloxime coupled with metal-organic frameworks NH 2-MIL-125: A novel bifunctional photocatalyst for photocatalytic NO removal and H 2 evolution under visible light irradiation. JOURNAL OF HAZARDOUS MATERIALS 2020; 399:122824. [PMID: 32535515 DOI: 10.1016/j.jhazmat.2020.122824] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 04/07/2020] [Accepted: 05/06/2020] [Indexed: 06/11/2023]
Abstract
The novel bifunctional NH2-MIL-125/Co(dmgH)2 composite catalysts with several different Co(dmgH)2 contents that can simultaneously achieve photocatalytic NO removal and hydrogen production were first prepared by a simple and convenient method. The corresponding physical and chemical properties of the composite catalysts were characterized by SEM, XRD, ESR, in situ DRIFTS, etc. The characterization results indicated that the noble-metal-free Co(dmgH)2, which was much cheaper and more available than most noble-metals such as Pt, could be an effective co-catalyst to accelerate the separation of photogenerated electron-hole pairs, further eventually enhancing the photocatalytic efficiency. Under visible-light irradiation for half an hour, the NO removal ratio of NH2-MIL-125/Co(dmgH)2 (3 wt%) increased by 22.7 % compared with the pristine NH2-MIL-125 without Co(dmgH)2 loading. In addition, it was found that Eosin Y dye-sensitized NH2-MIL-125/Co(dmgH)2 (3 wt%) was capable of promoting a hydrogen generation rate of 2195 μmol g-1 h-1 under visible light, which was 12.6 times greater than the original NH2-MIL-125. This strategy was expected as an available way to fabricate noble-metal-free molecular complexes with metal-organic frameworks (MOFs) to enhance the photocatalytic NO removal and hydrogen production performance simultaneously.
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Affiliation(s)
- Shuang Luo
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Xingyan Liu
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China.
| | - Xiangjun Wei
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Min Fu
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Peng Lu
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Xuan Li
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Yiming Jia
- Department of Chemistry "G. Ciamician", University of Bologna, Ravenna Campus, 48121 Ravenna, Italy
| | - Qiao Ren
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Youzhou He
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China.
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13
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Gezhagn TM, Temam AG, Lelisho TA. Theoretical study on chemical fixation of carbon dioxide with aziridine into cyclic carbamate catalysed by purine/HI system. Mol Phys 2020. [DOI: 10.1080/00268976.2020.1831637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Teshome Mender Gezhagn
- Department of chemistry, College of Natural and Computational sciences, Hawassa University, Hawassa, Ethiopia
| | - Abdudin Geremu Temam
- Department of chemistry, College of Natural and Computational sciences, Hawassa University, Hawassa, Ethiopia
| | - Teshome Abute Lelisho
- Department of chemistry, College of Natural and Computational sciences, Hawassa University, Hawassa, Ethiopia
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14
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Bhunia S, Ghosh P, Patra SR. Gold‐Catalyzed Oxidative Alkyne Functionalization by N−O/S−O/C−O Bond Oxidants. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000274] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sabyasachi Bhunia
- Department of Chemistry Central University of Jharkhand Ranchi Jharkhand 835205 India
| | - Partha Ghosh
- Department of Chemistry Central University of Jharkhand Ranchi Jharkhand 835205 India
| | - Snigdha Rani Patra
- Department of Chemistry Central University of Jharkhand Ranchi Jharkhand 835205 India
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15
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Quaternary Vanado‐Molybdotungstophosphoric Acid [H 5PW 6Mo 4V 2O 40] Over Natural Montmorillonite as a Heterogeneous Catalyst for the Synthesis 4 H‐Pyran and Polyhydroquinoline Derivatives. ChemistrySelect 2020. [DOI: 10.1002/slct.202001065] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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16
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Electro-kinetics of conversion of NO3− into NO2−and sensing of nitrate ions via reduction reactions at copper immobilized platinum surface in the neutral medium. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135994] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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He Y, Alamri H, Kawelah M, Gizzatov A, Alghamdi MF, Swager TM, Zhu SS. Brine-Soluble Zwitterionic Copolymers with Tunable Adsorption on Rocks. ACS APPLIED MATERIALS & INTERFACES 2020; 12:13568-13574. [PMID: 32150375 PMCID: PMC7307833 DOI: 10.1021/acsami.0c02247] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 02/26/2020] [Indexed: 06/10/2023]
Abstract
Injection of aqueous fluids into reservoirs as an enhanced oil recovery (EOR) tool has been of great interest in petroleum engineering. EOR using viscous polymer solutions improves the volumetric sweep efficiency. However, significant polymer adsorption on reservoir rock surfaces is one of the greatest challenges in polymer-flooding EOR. We have synthesized and characterized five zwitterionic copolymers and studied their static adsorption on limestone surfaces in seawater at high temperatures and salinities. Our results indicate that polymer adsorption directly correlates to a small percentage of functional co-monomers on the polymer backbone. One particular copolymer shows negligible static adsorption on limestone surfaces.
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Affiliation(s)
- Yuan He
- Department of Chemistry
and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Haleema Alamri
- Department of Chemistry
and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Non-Metallic
Applications Development Division, Research & Development Center,
Saudi Aramco, KAUST, Thuwal 23955, Saudi Arabia
| | - Mohammed Kawelah
- Aramco
Services Company: Aramco Research Center—Boston, 400 Technology Square, Cambridge, Massachusetts 02139, United States
| | - Ayrat Gizzatov
- Aramco
Services Company: Aramco Research Center—Boston, 400 Technology Square, Cambridge, Massachusetts 02139, United States
| | - Mariam F. Alghamdi
- Aramco
Services Company: Aramco Research Center—Boston, 400 Technology Square, Cambridge, Massachusetts 02139, United States
| | - Timothy M. Swager
- Department of Chemistry
and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - S. Sherry Zhu
- Aramco
Services Company: Aramco Research Center—Boston, 400 Technology Square, Cambridge, Massachusetts 02139, United States
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18
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Kasinathan K, Murugesan B, Pandian N, Mahalingam S, Selvaraj B, Marimuthu K. Synthesis of biogenic chitosan-functionalized 2D layered MoS 2 hybrid nanocomposite and its performance in pharmaceutical applications: In-vitro antibacterial and anticancer activity. Int J Biol Macromol 2020; 149:1019-1033. [PMID: 32027897 DOI: 10.1016/j.ijbiomac.2020.02.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 02/02/2020] [Accepted: 02/02/2020] [Indexed: 02/02/2023]
Abstract
A bacterial and viral infection causes life threatening diseases owing to the abuse of antibiotics and the development of antibiotic resistance microbes. Currently, biopolymers have been considered as the most promising materials in the medical field. Herein, the biogenic chitosan-functionalized MoS2 nanocomposite was prepared by the hydrothermal method with the liquid exfoliation process. The X-ray diffraction (XRD) results of chitosan-MoS2 hybrid nanocomposite revealed that MoS2 nanoparticle was found to be 42 nm with a hexagonal crystal structure. FTIR and Raman spectrum revealed that the nitrogen functionalities in the chitosan interacted with MoS2 to form the nanocomposite. The XPS spectrum of chitosan-MoS2 nanocomposite confirms that C, N, O, Mo, and S exist in the nanocomposite. Thermal gravimetric analysis (TGA) and Differential thermal analysis (DTA) analysis showed that the chitosan-MoS2 nanocomposite has higher thermal stability up to 600 °C. In the antibacterial application the chitosan-MoS2 hybrid nanocomposite shows zones of inhibition against S. aureus as 22, 28, and 32 mm, and against E. coli as 26, 30, and 35 mm. In the anticancer analysis, chitosan-MoS2 hybrid nanocomposites showed a maximum cell inhibition of 65.45% at 100 μg/mL-1, resulting in the most significant MCF-7 cell inhibition.
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Affiliation(s)
- Kasirajan Kasinathan
- Thin Film and Nanoscience Research Lab, PG and Research Department of Physics, Alagappa Government Arts College, Affiliated by Alagappa University, Karaikudi 630 003, India
| | - Balaji Murugesan
- Advanced Green Chemistry Lab, Department of Industrial Chemistry, School of Chemical Sciences, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
| | - Nithya Pandian
- Advanced Green Chemistry Lab, Department of Industrial Chemistry, School of Chemical Sciences, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
| | - Sundrarajan Mahalingam
- Advanced Green Chemistry Lab, Department of Industrial Chemistry, School of Chemical Sciences, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
| | - Balamurugan Selvaraj
- PG and Research Department of Physics, AVVM Sri Pushpam College, Poondi, Thanjavur, Tamil Nadu, India
| | - Karunakaran Marimuthu
- Thin Film and Nanoscience Research Lab, PG and Research Department of Physics, Alagappa Government Arts College, Affiliated by Alagappa University, Karaikudi 630 003, India..
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19
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Catalytic conversion of CO2 and shale gas-derived substrates into saturated carbonates and derivatives: Catalyst design, performances and reaction mechanism. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2019.05.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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20
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Levina MA, Zabalov MV, Krasheninnikov VG, Tiger RP. Kinetics and quantum chemical aspects of the mechanism of the guanidine (TBD) catalyzed aminolysis of cyclocarbonate containing soybean oil triglycerides as the model process of green chemistry of polyurethanes. REACTION KINETICS MECHANISMS AND CATALYSIS 2019. [DOI: 10.1007/s11144-019-01683-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Briccolani-Bandini L, Brandi A, Cardini G, Chelli R, Cordero FM, Gellini C, Pagliai M. Computational Investigation of the Selective Cleavage of Diastereotopic Cyclopropane Bonds in 5-Spirocyclopropane Isoxazolidines Rearrangement. J Org Chem 2019; 84:6757-6764. [PMID: 31042393 DOI: 10.1021/acs.joc.9b00499] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The complete path of the Brandi-Guarna rearrangement of 5-spirocyclopropane isoxazolidines has been investigated by means of density functional theory calculations to rationalize the competing formation of tetrahydropyridones and enaminones by the determination of the minimum energy reaction paths. Our calculations confirm that the rearrangement is triggered by the homolysis of the isoxazolidine N-O bond followed by cleavage of one of the two C-CH2 cyclopropane bonds as previously proposed by the Fabian group [ Eur. J. Org. Chem. 2001, 2001, 4223]. In addition, the results of this work suggest that in the presence of a stereogenic center at isoxazolidine C-4', the formation of a piperidinone or an enaminone as the final product depends on which of the two diastereotopic C-CH2 bonds of cyclopropane is cleaved in the second step of the process. The result can be of great interest for the understanding of other processes involving the opening of a cyclopropane ring.
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Affiliation(s)
- Lorenzo Briccolani-Bandini
- Dipartimento di Chimica "Ugo Schiff" , Università di Firenze , Via della Lastruccia 3 , Sesto Fiorentino, 50019 Firenze , Italy
| | - Alberto Brandi
- Dipartimento di Chimica "Ugo Schiff" , Università di Firenze , Via della Lastruccia 3 , Sesto Fiorentino, 50019 Firenze , Italy
| | - Gianni Cardini
- Dipartimento di Chimica "Ugo Schiff" , Università di Firenze , Via della Lastruccia 3 , Sesto Fiorentino, 50019 Firenze , Italy
| | - Riccardo Chelli
- Dipartimento di Chimica "Ugo Schiff" , Università di Firenze , Via della Lastruccia 3 , Sesto Fiorentino, 50019 Firenze , Italy
| | - Franca M Cordero
- Dipartimento di Chimica "Ugo Schiff" , Università di Firenze , Via della Lastruccia 3 , Sesto Fiorentino, 50019 Firenze , Italy
| | - Cristina Gellini
- Dipartimento di Chimica "Ugo Schiff" , Università di Firenze , Via della Lastruccia 3 , Sesto Fiorentino, 50019 Firenze , Italy
| | - Marco Pagliai
- Dipartimento di Chimica "Ugo Schiff" , Università di Firenze , Via della Lastruccia 3 , Sesto Fiorentino, 50019 Firenze , Italy
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22
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Temam AG, Lelisho TA. DFT study on coupling reaction of carbon dioxide with ethylene oxide catalyzed by 1,4,6-triaza-bicyclo[3.3.0]oct-4-enium bromide (TBO.HBr). Mol Phys 2019. [DOI: 10.1080/00268976.2019.1623931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Abdudin Geremu Temam
- Department of Chemistry, College of Natural and Computational Science, Oda Bultum University, Chiro, Ethiopia
| | - Teshome Abute Lelisho
- Department of Chemistry, College of Natural and Computational Sciences, Hawassa University, Hawassa, Ethiopia
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23
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Grignard B, Gennen S, Jérôme C, Kleij AW, Detrembleur C. Advances in the use of CO 2 as a renewable feedstock for the synthesis of polymers. Chem Soc Rev 2019; 48:4466-4514. [PMID: 31276137 DOI: 10.1039/c9cs00047j] [Citation(s) in RCA: 251] [Impact Index Per Article: 50.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Carbon dioxide offers an accessible, cheap and renewable carbon feedstock for synthesis. Current interest in the area of carbon dioxide valorisation aims at new, emerging technologies that are able to provide new opportunities to turn a waste into value. Polymers are among the most widely produced chemicals in the world greatly affecting the quality of life. However, there are growing concerns about the lack of reuse of the majority of the consumer plastics and their after-life disposal resulting in an increasing demand for sustainable alternatives. New monomers and polymers that can address these issues are therefore warranted, and merging polymer synthesis with the recycling of carbon dioxide offers a tangible route to transition towards a circular economy. Here, an overview of the most relevant and recent approaches to CO2-based monomers and polymers are highlighted with particular emphasis on the transformation routes used and their involved manifolds.
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Affiliation(s)
- Bruno Grignard
- Department of Chemistry, Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6A, 4000 Liège, Belgium.
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24
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Baral ER, Lee JH, Kim JG. Diphenyl Carbonate: A Highly Reactive and Green Carbonyl Source for the Synthesis of Cyclic Carbonates. J Org Chem 2018; 83:11768-11776. [PMID: 30187751 DOI: 10.1021/acs.joc.8b01695] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A practical, safe, and highly efficient carbonylation system involving a diphenyl carbonate, an organocatalyst, and various diols is presented herein and produces highly valuable cyclic carbonates. In reactions with a wide range of diols, diphenyl carbonate was activated by bicyclic guanidine 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) as a catalyst, which successfully replaced highly toxic and unstable phosgene or its derivatives while maintaining the desired high reactivity. Moreover, this new system can be used to synthesize sterically demanding cyclic carbonates such as tetrasubstituted pinacol carbonates, which are not accessible via other conventional methods.
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Affiliation(s)
- Ek Raj Baral
- Department of Chemistry and Research Institute of Physics and Chemistry , Chonbuk National University , Jeonju 54896 , Republic of Korea
| | - Jun Hee Lee
- Department of Advanced Materials Chemistry , Dongguk University , Gyeongju 38066 , Republic of Korea
| | - Jeung Gon Kim
- Department of Chemistry and Research Institute of Physics and Chemistry , Chonbuk National University , Jeonju 54896 , Republic of Korea
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25
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Imberdis A, Lefèvre G, Thuéry P, Cantat T. Metal-Free and Alkali-Metal-Catalyzed Synthesis of Isoureas from Alcohols and Carbodiimides. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711737] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Arnaud Imberdis
- NIMBE, CEA, CNRS; Université Paris-Saclay, CEA; Saclay 91191 Gif-sur-Yvette cedex France
| | - Guillaume Lefèvre
- NIMBE, CEA, CNRS; Université Paris-Saclay, CEA; Saclay 91191 Gif-sur-Yvette cedex France
| | - Pierre Thuéry
- NIMBE, CEA, CNRS; Université Paris-Saclay, CEA; Saclay 91191 Gif-sur-Yvette cedex France
| | - Thibault Cantat
- NIMBE, CEA, CNRS; Université Paris-Saclay, CEA; Saclay 91191 Gif-sur-Yvette cedex France
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26
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Imberdis A, Lefèvre G, Thuéry P, Cantat T. Metal-Free and Alkali-Metal-Catalyzed Synthesis of Isoureas from Alcohols and Carbodiimides. Angew Chem Int Ed Engl 2018; 57:3084-3088. [DOI: 10.1002/anie.201711737] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 01/09/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Arnaud Imberdis
- NIMBE, CEA, CNRS; Université Paris-Saclay, CEA; Saclay 91191 Gif-sur-Yvette cedex France
| | - Guillaume Lefèvre
- NIMBE, CEA, CNRS; Université Paris-Saclay, CEA; Saclay 91191 Gif-sur-Yvette cedex France
| | - Pierre Thuéry
- NIMBE, CEA, CNRS; Université Paris-Saclay, CEA; Saclay 91191 Gif-sur-Yvette cedex France
| | - Thibault Cantat
- NIMBE, CEA, CNRS; Université Paris-Saclay, CEA; Saclay 91191 Gif-sur-Yvette cedex France
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