1
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Pan P, Ji D, Li Z, Meng X. Design and synthesis of doublecortin-like kinase 1 inhibitors and their bioactivity evaluation. J Enzyme Inhib Med Chem 2024; 39:2287990. [PMID: 38062554 DOI: 10.1080/14756366.2023.2287990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 11/21/2023] [Indexed: 12/18/2023] Open
Abstract
Doublecortin-like kinase 1 (DCLK) is a microtubule-associated serine/threonine kinase that is upregulated in a wide range of cancers and is believed to be related to tumour growth and development. Upregulated DCLK1 has been used to identify patients at high risk of cancer progression and tumours with chemotherapy-resistance. Moreover, DCLK1 has been identified as a cancer stem cell (CSC) biomarker in various cancers, which has received considerable attention recently. Herein, a series of DCLK1 inhibitors were prepared based on the previously reported XMD8-92 structure. Among all the synthesised compounds, D1, D2, D6, D7, D8, D12, D14, and D15 showed higher DCLK1 inhibitory activities (IC50 40-74 nM) than XMD8-92 (IC50 161 nM). Compounds D1 and D2 were selective DCLK1 inhibitors as they showed a rather weak inhibitory effect on LRRK2. The antiproliferative activities of these compounds were also preliminarily evaluated. The structure-activity relationship revealed by our compounds provides useful guidance for the further development of DCLK1 inhibitors.
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Affiliation(s)
- Pengming Pan
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Dengbo Ji
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Gastrointestinal Surgery III, Peking University Cancer Hospital & Institute, Beijing, China
| | - Zhongjun Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Xiangbao Meng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
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2
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Templ J, Schnürch M. A Guide for Mono-Selective N-Methylation, N-Ethylation, and N-n-Propylation of Primary Amines, Amides, and Sulfonamides and Their Applicability in Late-Stage Modification. Chemistry 2024; 30:e202304205. [PMID: 38353032 DOI: 10.1002/chem.202304205] [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: 12/18/2023] [Indexed: 03/06/2024]
Abstract
This review provides a comprehensive overview of mono-alkylation methodologies targeting crucial nitrogen moieties - amines, amides, and sulfonamides - found in organic building blocks and pharmaceuticals. Emphasizing the intersection of chemical precision with drug discovery, the central challenge addressed is achieving one-pot mono-selective short-chain N-alkylations (methylations, ethylations, and n-propylations), preventing undesired overalkylation. Additionally, sustainable, safe, and benign alternatives to traditional alkylating agents, including alcohols, carbon dioxide, carboxylic acids, nitriles, alkyl phosphates, quaternary ammonium salts, and alkyl carbonates, are explored. This review, categorized by the nature of the alkylating agent, aids researchers in selecting suitable methods for mono-selective N-alkylation.
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Affiliation(s)
- Johanna Templ
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060, Vienna, Austria
| | - Michael Schnürch
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060, Vienna, Austria
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3
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Dimethyl 2,5-furandicarboxylate synthesis from 2,5-furanodicarboxylic acid and dimethyl carbonate in presence of MgO-Al2O3 and tetrabutylammonium bromide. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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5
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Roscales S, Csákÿ AG. Synthesis of Mono- N-Methyl Aromatic Amines from Nitroso Compounds and Methylboronic Acid. ACS OMEGA 2019; 4:13943-13953. [PMID: 31497712 PMCID: PMC6713987 DOI: 10.1021/acsomega.9b01608] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 06/12/2019] [Indexed: 05/08/2023]
Abstract
The selective synthesis of mono-N-methyl aromatic amines was achieved by the reaction of aromatic nitroso compounds with methylboronic acid promoted by triethylphosphite under transition metal-free conditions. The target compounds are constructed efficiently without overmethylation, under environmentally benign reaction conditions that do not require bases or reductants and therefore are of interest in pharmaceutical, agricultural, and chemical industries.
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6
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Catalytic Reductive N‐Alkylations Using CO
2
and Carboxylic Acid Derivatives: Recent Progress and Developments. Angew Chem Int Ed Engl 2019; 58:12820-12838. [DOI: 10.1002/anie.201810121] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Indexed: 12/12/2022]
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7
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Cabrero‐Antonino JR, Adam R, Beller M. Katalytische reduktive N‐Alkylierungen unter Verwendung von CO
2
und Carbonsäurederivaten: Aktuelle Entwicklungen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201810121] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jose R. Cabrero‐Antonino
- Leibniz-Institut für Katalyse Homogeneous Catalysis Albert-Einstein-Straße 29a Rostock 18059 Deutschland
- Instituto de Tecnología Química, Universitat Politécnica de València-Consejo Superior Investigaciones Científicas (UPV-CSIC) Avda. de los Naranjos s/n València 46022 Spanien
| | - Rosa Adam
- Leibniz-Institut für Katalyse Homogeneous Catalysis Albert-Einstein-Straße 29a Rostock 18059 Deutschland
- Instituto de Tecnología Química, Universitat Politécnica de València-Consejo Superior Investigaciones Científicas (UPV-CSIC) Avda. de los Naranjos s/n València 46022 Spanien
| | - Matthias Beller
- Leibniz-Institut für Katalyse Homogeneous Catalysis Albert-Einstein-Straße 29a Rostock 18059 Deutschland
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8
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Chen Y. Recent Advances in Methylation: A Guide for Selecting Methylation Reagents. Chemistry 2018; 25:3405-3439. [DOI: 10.1002/chem.201803642] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Yantao Chen
- Medicinal Chemistry, Cardiovascular, Renal and Metabolism, IMED Biotech UnitAstraZeneca Gothenburg Sweden
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9
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Lui MY, Noè M, Masters AF, Maschmeyer T. Selective Catalytic Methylation of Phloroglucinol with Dimethyl Carbonate in the Presence of Heterogeneous Acids. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Matthew Y. Lui
- Laboratory of Advanced Catalysis for Sustainability; School of Chemistry F11; The University of Sydney; 2006 Sydney, NSW Australia
| | - Marco Noè
- Laboratory of Advanced Catalysis for Sustainability; School of Chemistry F11; The University of Sydney; 2006 Sydney, NSW Australia
| | - Anthony F. Masters
- Laboratory of Advanced Catalysis for Sustainability; School of Chemistry F11; The University of Sydney; 2006 Sydney, NSW Australia
| | - Thomas Maschmeyer
- Laboratory of Advanced Catalysis for Sustainability; School of Chemistry F11; The University of Sydney; 2006 Sydney, NSW Australia
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10
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Zhang S, Tan Z, Xiong B, Jiang HF, Zhang M. Transition-metal-catalyst-free synthesis of anthranilic acid derivatives by transfer hydrogenative coupling of 2-nitroaryl methanols with alcohols/amines. Org Biomol Chem 2018; 16:531-535. [DOI: 10.1039/c7ob02919e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A transition metal catalyst-free synthesis of anthranilic acid derivatives, featuring operational simplicity, broad substrate scope, good functional tolerance, high step efficiency, is presented.
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Affiliation(s)
- Shudi Zhang
- State Key Laboratory of Pulp and Paper Engineering
- and Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510641
| | - Zhenda Tan
- State Key Laboratory of Pulp and Paper Engineering
- and Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510641
| | - Biao Xiong
- School of Pharmacy
- Nantong University
- Nantong
- China
| | - Huan Feng Jiang
- State Key Laboratory of Pulp and Paper Engineering
- and Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510641
| | - Min Zhang
- State Key Laboratory of Pulp and Paper Engineering
- and Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510641
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11
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Full N,N-Methylation of 4,4′-Methylenedianiline with Dimethyl Carbonate: A Feasible Access to 4,4′-Methylene bis(N,N-Dimethylaniline). J CHEM-NY 2018. [DOI: 10.1155/2018/4627903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The full N,N-methylation of 4,4′-methylenedianiline (MDA) with dimethyl carbonate (DMC) was investigated. The yield of the major product 4,4′-methylene bis(N,N-dimethylaniline) (MBDMA) reached as high as 97% over NaY catalyst at 190°C for 6 h. The catalyst could be used for two more times with acceptable MBDMA yields higher than 90%. The main by-products were identified as three N-methylated derivatives. Surprisingly, the formation of the N-methoxycarbonylation product was extremely restrained, which could be produced in high yields of 98% on zinc acetate catalyst. Furthermore, the reaction pathway to the major product MBDMA was proposed. Finally, a feasible synthetic route of 4,4′-methylene bis(N,N-dimethylaniline) (MBDMA) was established, featuring a high yield, mild reaction conditions, and simple operations.
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12
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Molleti J, Yadav GD. Green Synthesis of Veratraldehyde Using Potassium Promoted Lanthanum–Magnesium Mixed Oxide Catalyst. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.7b00127] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jayaram Molleti
- Department of Chemical Engineering, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga Mumbai-400 019, India
| | - Ganapati D. Yadav
- Department of Chemical Engineering, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga Mumbai-400 019, India
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13
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Cattelan L, Perosa A, Riello P, Maschmeyer T, Selva M. Continuous-Flow O-Alkylation of Biobased Derivatives with Dialkyl Carbonates in the Presence of Magnesium-Aluminium Hydrotalcites as Catalyst Precursors. CHEMSUSCHEM 2017; 10:1571-1583. [PMID: 28140521 DOI: 10.1002/cssc.201601765] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 01/20/2017] [Indexed: 06/06/2023]
Abstract
The base-catalysed reactions of OH-bearing biobased derivatives (BBDs) including glycerol formal, solketal, glycerol carbonate, furfuryl alcohol and tetrahydrofurfuryl alcohol with non-toxic dialkyl carbonates (dimethyl and diethyl carbonate) were explored under continuous-flow (CF) conditions in the presence of three Na-exchanged Y- and X-faujasites (FAUs) and four Mg-Al hydrotalcites (HTs). Compared to previous etherification protocols mediated by dialkyl carbonates, the reported procedure offers substantial improvements not only in terms of (chemo)selectivity but also for the recyclability of the catalysts, workup, ease of product purification and, importantly, process intensification. Characterisation studies proved that both HT30 and KW2000 hydrotalcites acted as catalyst precursors: during the thermal activation pre-treatments, the typical lamellar structure of the hydrotalcite was broken down gradually into a MgO-like phase (periclase) or rather a magnesia-alumina solid solution, which was the genuine catalytic phase.
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Affiliation(s)
- Lisa Cattelan
- Department of Molecular Sciences and Nanosystems, Università Ca' Foscari Venezia, Via Torino, 155, Venezia Mestre, Italy
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry F11, University of Sydney, Sydney, 2006, Australia
| | - Alvise Perosa
- Department of Molecular Sciences and Nanosystems, Università Ca' Foscari Venezia, Via Torino, 155, Venezia Mestre, Italy
| | - Piero Riello
- Department of Molecular Sciences and Nanosystems, Università Ca' Foscari Venezia, Via Torino, 155, Venezia Mestre, Italy
| | - Thomas Maschmeyer
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry F11, University of Sydney, Sydney, 2006, Australia
| | - Maurizio Selva
- Department of Molecular Sciences and Nanosystems, Università Ca' Foscari Venezia, Via Torino, 155, Venezia Mestre, Italy
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14
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Castillo JC, Orrego-Hernández J, Portilla J. Cs2CO3-Promoted DirectN-Alkylation: Highly Chemoselective Synthesis ofN-Alkylated Benzylamines and Anilines. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600549] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Juan-Carlos Castillo
- Departamento de Química; Universidad de los Andes; Carrera 1 N° 18A-12 Bogotá Colombia
| | | | - Jaime Portilla
- Departamento de Química; Universidad de los Andes; Carrera 1 N° 18A-12 Bogotá Colombia
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15
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Cabrero-Antonino JR, Adam R, Junge K, Beller M. A general protocol for the reductive N-methylation of amines using dimethyl carbonate and molecular hydrogen: mechanistic insights and kinetic studies. Catal Sci Technol 2016. [DOI: 10.1039/c6cy01401a] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A general and selective ruthenium-catalyzed reductive N-methylation of primary and secondary aromatic and aliphatic amines using dimethyl carbonate as a C1 source and molecular hydrogen as a reducing agent is reported for the first time.
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Affiliation(s)
| | - Rosa Adam
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Kathrin Junge
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
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16
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Mao J, Liu D, Li Y, Zhao J, Rong G, Yan H, Zhang G. A practical, chemoselective approach to O-methylation of carboxylic acids with dimethyl malonate. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.10.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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17
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Santoro O, Lazreg F, Minenkov Y, Cavallo L, Cazin CSJ. N-heterocyclic carbene copper(I) catalysed N-methylation of amines using CO2. Dalton Trans 2015; 44:18138-44. [PMID: 26420462 DOI: 10.1039/c5dt03506f] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The N-methylation of amines using CO2 and PhSiH3 as source of CH3 was efficiently performed using a N-heterocyclic carbene copper(i) complex. The methodology was found compatible with aromatic and aliphatic primary and secondary amines. Synthetic and computational studies have been carried out to support the proposed reaction mechanism for this transformation.
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Affiliation(s)
- Orlando Santoro
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK.
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18
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Chen M, Ren ZH, Wang YY, Guan ZH. Palladium-Catalyzed Oxidative Carbonylation of Aromatic C–H Bonds of N-Alkylanilines with CO and Alcohols for the Synthesis of o-Aminobenzoates. J Org Chem 2015; 80:1258-63. [DOI: 10.1021/jo502581p] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Ming Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Zhi-Hui Ren
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Yao-Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Zheng-Hui Guan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
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19
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Kreye O, Over LC, Nitsche T, Lange RZ, Meier MA. Organic carbonates: sustainable and environmentally-friendly ethylation, allylation, and benzylation reagents. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.11.053] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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20
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Guan Z, Hillrichs K, Ünlü C, Rissanen K, Nieger M, Schmidt A. Synthesis of 2-anilinobenzimidates, anthranilamides, and 2,3-dihydroquinazolin-4(1H)-ones from N-heterocyclic carbenes of indazole. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.11.054] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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21
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2-Alkoxy-3,4-dihydropyrans as modular substrates to construct polyheterocycles by reacting with NH2-containing bisnucleophiles. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.10.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Xie A, Zhang Q, Liu Y, Feng L, Hu X, Dong W. An Environmentally Friendly Method forN-Methylation of 5-Substituted 1H-Tetrazoles with a Green Methylating Reagent: Dimethyl Carbonate. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.2179] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Aming Xie
- School of Chemical Engineering; Nanjing University of Science and Technology; Nanjing 210094 People's Republic of China
| | - Qiang Zhang
- School of Chemical Engineering; Nanjing University of Science and Technology; Nanjing 210094 People's Republic of China
| | - Yangyang Liu
- School of Chemical Engineering; Nanjing University of Science and Technology; Nanjing 210094 People's Republic of China
| | - Liandong Feng
- School of Chemical Engineering; Nanjing University of Science and Technology; Nanjing 210094 People's Republic of China
| | - Xinyu Hu
- School of Chemical Engineering; Nanjing University of Science and Technology; Nanjing 210094 People's Republic of China
| | - Wei Dong
- School of Chemical Engineering; Nanjing University of Science and Technology; Nanjing 210094 People's Republic of China
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23
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Fiorani G, Selva M. Synthesis of dibenzyl carbonate: towards a sustainable catalytic approach. RSC Adv 2014. [DOI: 10.1039/c3ra42904k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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24
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Selva M, Caretto A, Noè M, Perosa A. Carbonate phosphonium salts as catalysts for the transesterification of dialkyl carbonates with diols. The competition between cyclic carbonates and linear dicarbonate products. Org Biomol Chem 2014; 12:4143-55. [DOI: 10.1039/c4ob00655k] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Methylcarbonate and bicarbonate methyltrioctylphosphonium salts were excellent catalysts for the transesterification of dialkyl carbonates with diols: cyclic or linear carbonates are obtained.
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Affiliation(s)
- Maurizio Selva
- Department of Molecular Sciences and Nanosystems
- Centre for Sustainable Technologies
- Università Ca’ Foscari Venezia
- 2137-30123 - Venezia, Italy
| | - Alessio Caretto
- Department of Molecular Sciences and Nanosystems
- Centre for Sustainable Technologies
- Università Ca’ Foscari Venezia
- 2137-30123 - Venezia, Italy
| | - Marco Noè
- Department of Molecular Sciences and Nanosystems
- Centre for Sustainable Technologies
- Università Ca’ Foscari Venezia
- 2137-30123 - Venezia, Italy
| | - Alvise Perosa
- Department of Molecular Sciences and Nanosystems
- Centre for Sustainable Technologies
- Università Ca’ Foscari Venezia
- 2137-30123 - Venezia, Italy
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25
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Jiang X, Wang C, Wei Y, Xue D, Liu Z, Xiao J. A General Method for N-Methylation of Amines and Nitro Compounds with Dimethylsulfoxide. Chemistry 2013; 20:58-63. [DOI: 10.1002/chem.201303802] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Indexed: 11/07/2022]
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26
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Xu BC, Han F, Shui JH, Zhou YW. Lauryl Trimethyl Ammoniums with New Type Counteranions. TENSIDE SURFACT DET 2013. [DOI: 10.3139/113.110042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The interfacial properties of a new family of lauryl trimethyl ammonium salts of the general formula CH3(CH2)11N+(CH3)3X− (X = CH3OCOO, HCOO, CH3COO, CH3CHOHCOO) were studied. The physicochemical parameters of these quaternary ammonium salts were discussed. The effect of the counteranion on the behavior of these surfactants was analyzed.
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Selva M, Noè M, Perosa A, Gottardo M. Carbonate, acetate and phenolate phosphonium salts as catalysts in transesterification reactions for the synthesis of non-symmetric dialkyl carbonates. Org Biomol Chem 2012; 10:6569-78. [DOI: 10.1039/c2ob25447f] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Yamazaki Y, Kakuma K, Du Y, Saito S. Synthesis of carbonates directly from 1 atm CO2 and alcohols using CH2Cl2. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.10.051] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Dhakshinamoorthy A, Sharmila A, Pitchumani K. Layered Double Hydroxide-Supported L-Methionine-Catalyzed Chemoselective O-Methylation of Phenols and Esterification of Carboxylic Acids with Dimethyl Carbonate: A “Green” Protocol. Chemistry 2010; 16:1128-32. [DOI: 10.1002/chem.200902626] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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30
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Selva M, Fabris M, Lucchini V, Perosa A, Noè M. The reaction of primary aromatic amines with alkylene carbonates for the selective synthesis of bis-N-(2-hydroxy)alkylanilines: the catalytic effect of phosphonium-based ionic liquids. Org Biomol Chem 2010; 8:5187-98. [DOI: 10.1039/c0ob00105h] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Fabris M, Lucchini V, Noè M, Perosa A, Selva M. Ionic Liquids Made with Dimethyl Carbonate: Solvents as well as Boosted Basic Catalysts for the Michael Reaction. Chemistry 2009; 15:12273-82. [DOI: 10.1002/chem.200901891] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Xu BC, Han F, Shui JH, Zhou YW. Synthesis and Characterization of Lauryl Trimethyl Ammonium Surfactants with New Counteranion Types. J SURFACTANTS DETERG 2009. [DOI: 10.1007/s11743-009-1129-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Juarez R, Padilla A, Corma A, Garcia H. Transition metal containing zeolites and mesoporous MCM-41 as heterogeneous catalysts for the N-alkylation of 2,4-diaminotoluene with dimethylcarbonate. CATAL COMMUN 2009. [DOI: 10.1016/j.catcom.2008.10.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Juárez R, Padilla A, Corma A, García H. Organocatalysts for the Reaction of Dimethyl Carbonate with 2,4-Diaminotoluene. Ind Eng Chem Res 2008. [DOI: 10.1021/ie800126t] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Raquel Juárez
- Instituto de Tecnología Química CSIC-UPV, Universidad Politécnica de Valencia, Avda. de los Naranjos, 46022 Valencia, Spain, and Centro Tecnológico de Repsol YPF, Crta. De Extremadura, Km 18, 28931 Madrid, Spain
| | - Ana Padilla
- Instituto de Tecnología Química CSIC-UPV, Universidad Politécnica de Valencia, Avda. de los Naranjos, 46022 Valencia, Spain, and Centro Tecnológico de Repsol YPF, Crta. De Extremadura, Km 18, 28931 Madrid, Spain
| | - Avelino Corma
- Instituto de Tecnología Química CSIC-UPV, Universidad Politécnica de Valencia, Avda. de los Naranjos, 46022 Valencia, Spain, and Centro Tecnológico de Repsol YPF, Crta. De Extremadura, Km 18, 28931 Madrid, Spain
| | - Hermenegildo García
- Instituto de Tecnología Química CSIC-UPV, Universidad Politécnica de Valencia, Avda. de los Naranjos, 46022 Valencia, Spain, and Centro Tecnológico de Repsol YPF, Crta. De Extremadura, Km 18, 28931 Madrid, Spain
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Bernini R, Mincione E, Crisante F, Barontini M, Fabrizi G, Gentili P. Chemoselective and efficient carbomethoxylation of the alcoholic chain of phenols by dimethyl carbonate (DMC). Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.07.109] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ebenezer WJ, Hutchings MG, Jones K, Lambert DA, Watt I. Highly selective zeolite-catalysed mono-N-alkylation of arylenediamines by dialkyl carbonates. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2006.12.131] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Green approaches to highly selective processes: Reactions of dimethyl carbonate over both zeolites and base catalysts. PURE APPL CHEM 2007. [DOI: 10.1351/pac200779111855] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Nowadays available by clean industrial processes, dimethyl carbonate (DMC) possesses properties of nontoxicity and biodegradability which make it a true green reagent/solvent to devise syntheses that prevent pollution at the source. In particular, the versatile reactivity of DMC allows both methylation and carboxymethylation protocols that can replace conventional and highly noxious reagents such as methyl halides (and dimethyl sulfate, DMS) and phosgene. In the field of DMC-mediated methylations, representative examples are the reactions of DMC with CH2-active compounds and primary aromatic amines. In the presence of organic/inorganic bases or zeolites (faujasites) catalysts, these processes proceed with unprecedented selectivity (up to 99 %, at complete conversion) toward the corresponding mono-C- and mono-N-methyl derivatives, a result hitherto not possible with conventional alkylation reagents. In the case of ambident amines (e.g., aminophenols, aminobenzyl alcohols, aminobenzoic acids, and aminobenzamides), the unique combination of DMC and zeolites allows not only a very high mono-N-methyl selectivity, but also a complete chemoselectivity toward the amino group. The other nucleophilic functionalities (OH, CO2H, CH2OH, CONH2) are fully preserved from alkylation and/or transesterification reactions, usually observed over basic catalysts.
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Selva M, Perosa A, Tundo P, Brunelli D. Selective N,N-Dimethylation of Primary Aromatic Amines with Methyl Alkyl Carbonates in the Presence of Phosphonium Salts. J Org Chem 2006; 71:5770-3. [PMID: 16839162 DOI: 10.1021/jo060674d] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In the presence of onium salts, at 140-170 degrees C, methyl alkyl carbonates [1a-c, ROCO2Me, R = MeO(CH2)2[O(CH2)2]n; n = 2-0, respectively] react with primary aromatic amines (XC6H4NH2, X= p-OMe, p-Me, H, p-Cl, p-CO2Me, o-Et, and 2,3-Me2C6H3NH2) to yield the corresponding N,N-dimethyl derivatives (ArNMe2) with high selectivity (up to 96%) and good isolated yields (78-95%). Phosphonium salts (e.g., Ph3PEtI and n-Bu4PBr) are particularly efficient catalysts. Overall, a solvent-free reaction is coupled with safe methylating agents (1a-c) made from nontoxic dimethyl carbonate.
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Affiliation(s)
- Maurizio Selva
- Dipartimento di Scienze Ambientali dell'Università Ca' Foscari, and Consorzio Interuniversitario "La Chimica per l'Ambiente" (INCA), UdR di Venezia, Calle Larga S. Marta, 2137-30123 Venezia, Italy.
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Selva M, Tundo P. Highly Chemoselective Methylation and Esterification Reactions with Dimethyl Carbonate in the Presence of NaY Faujasite. The Case of Mercaptophenols, Mercaptobenzoic Acids, and Carboxylic Acids Bearing OH Substituents. J Org Chem 2006; 71:1464-70. [PMID: 16468795 DOI: 10.1021/jo0520792] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the presence of NaY faujasite, the reactions of dimethyl carbonate (DMC) with several ambident nucleophiles such as o- and p-mercaptophenols (1a,b), o- and p-mercaptobenzoic acids (2a,b), o- and p-hydroxybenzoic acids (3a,b), mandelic and phenyllactic acids (4, 5), have been explored under batch conditions. Highly chemoselective reactions can be performed: at 150 degrees C, compounds 1 and 2 undergo only a S-methylation reaction, without affecting OH and CO2H groups; at 165 degrees C, acids 3-5 form the corresponding methyl esters, while both their aromatic and aliphatic OH substituents are fully preserved from methylation and/or transesterification processes. Typical selectivities are of 90-98% and isolated yields of products (S-methyl derivatives and methyl esters, respectively) are in the range of 85-96%. A comparative study with K2CO3 as a catalyst is also reported. Although the base (K2CO3) turns out to be more active than the zeolite, the chemoselectivity is elusive: compounds 2a,b undergo simultaneous S-methylation and esterification reactions, and acids 3-5 yield complex mixtures of products of O-methylation, O-methoxycarbonylation, and esterification of their OH and CO2H groups, respectively. Overall, the combined use of a nontoxic reagent/solvent (DMC) and a safe promoter (NaY) imparts a genuine ecofriendly nature to the investigated synthesis.
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Affiliation(s)
- Maurizio Selva
- Dipartimento di Scienze Ambientali dell'Università Ca' Foscari, and Consorzio Interuniversitario La Chimica per l'Ambiente (INCA), UdR di Venezia, Calle Larga S. Marta, 2137-30123 Venezia, Italy.
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Bonino F, Damin A, Bordiga S, Selva M, Tundo P, Zecchina A. Dimethyl Carbonate in the Supercages of NaY Zeolite: The Role of Local Fields in Promoting Methylation and Carboxymethylation Activity. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200500110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Bonino F, Damin A, Bordiga S, Selva M, Tundo P, Zecchina A. Dimethyl Carbonate in the Supercages of NaY Zeolite: The Role of Local Fields in Promoting Methylation and Carboxymethylation Activity. Angew Chem Int Ed Engl 2005; 44:4774-7. [PMID: 15988764 DOI: 10.1002/anie.200500110] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Francesca Bonino
- Department of IFM Chemistry and NIS Centre of Excellence, Università di Torino, Via P. Giuria 7, 10125 Torino, Italy
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Selva M, Tundo P, Foccardi T. Mono-N-methylation of Functionalized Anilines with Alkyl Methyl Carbonates over NaY Faujasites. 4. Kinetics and Selectivity. J Org Chem 2005; 70:2476-85. [PMID: 15787533 DOI: 10.1021/jo048076r] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] In the presence of NaY faujasite as the catalyst, the reaction of bifunctional anilines (1-4: XC6H4NH2; X = OH, CO2H, CH2OH, and CONH2) with methyl alkyl carbonates [MeOCO2R': R' = Me or MeO(CH2)2O(CH2)2] proceeds with a very high mono-N-methyl selectivity (XC6H4NHMe up to 99%), and chemoselectivity as well, with other nucleophilic functions (OH, CO2H, CH2OH, CONH2) fully preserved from alkylation and/or transesterification reactions. Aromatic substituents, however, modify the relative reactivity of amines 1-4: good evidence suggests that, not only steric and electronic effects, but, importantly, direct acid-base interactions between substituents and the catalyst are involved. Weakly acidic groups (OH, CH2OH, CONH2, pKa > or = 10) may help the reaction, while aminobenzoic acids (pKa of 4-5) are the least reactive substrates. The solvent polarity also affects the reaction, which is faster in xylene than in the more polar diglyme. The mono-N-methyl selectivity is explained by the adsorption pattern of reagents within the zeolite pores: a B(Al)2 displacement of the amine on methyl alkyl carbonate should occur aided by the geometric features of the NaY supercavities. Different factors account for the reaction chemoselectivity. Evidence proves that the polarizability of the two nucleophilic terms (NH2 and X groups) of anilines is relevant, although adsorption and confinement phenomena of reagents promoted by the zeolite should also be considered.
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Affiliation(s)
- Maurizio Selva
- Dipartimento di Scienze Ambientali dell'Università Ca' Foscari, Calle Larga S. Marta 2137, 30123, Venezia, Italy.
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Selva M, Tundo P, Perosa A, Dall'Acqua F. Synthesis of Methyl Carbamates from Primary Aliphatic Amines and Dimethyl Carbonate in Supercritical CO2: Effects of Pressure and Cosolvents and Chemoselectivity. J Org Chem 2005; 70:2771-7. [PMID: 15787571 DOI: 10.1021/jo0477796] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] At 130 degrees C, in the presence of CO2 (5-200 bar), primary aliphatic amines react with dimethyl carbonate (MeOCO2Me, DMC) to yield methyl carbamates (RNHCO2Me) and N-methylation side-products (RNHMe and RNMe2). The pressure of CO2 largely influences both the reaction conversion and the selectivity toward urethanes: in general, conversion goes through a maximum (70-80%) in the midrange (40 bar) and drops at lower and higher pressures, whereas selectivity is continuously improved (from 50% up to 90%) by an increase of the pressure. This is explained by the multiple role of CO2 in (i) the acid/base equilibrium with aliphatic amines, (ii) the reactivity/solubility of RNHCO2- nucleophiles with/in DMC, and (iii) the inhibition of competitive N-methylation reaction of the substrates. Cosolvents also affect the reaction: in particular, a drop in selectivity is observed with polar protic media (i.e., MeOH), plausibly because of solvation effects (through H-bonds) of RNHCO2- moieties. The reaction shows also a good chemoselectivity: bifunctional aliphatic amines bearing either aromatic NH2 or OH substituents [XC6H4(CH2)n NH2, X = NH2, OH; n = 1, 2], undergo methoxycarbonylation reactions exclusively at aliphatic amino groups and give the corresponding methyl carbamates [XC6H4(CH2)n NHCO2Me] in 39-65% isolated yields.
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Affiliation(s)
- Maurizio Selva
- Dipartimento di Scienze Ambientali dell'Università Ca' Foscari and Consorzio Interuniversitario La Chimica per l'Ambiente, UdR di Venezia, Calle Larga S. Marta, 2137, 30123 Venezia, Italy.
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Bar-Haim G, Kol M. Selective Mono-N-alkylation of 3-Amino Alcohols via Chelation to 9-BBN. Org Lett 2004; 6:3549-51. [PMID: 15387545 DOI: 10.1021/ol048554k] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] A method for selective mono-N-alkylation of amino alcohols is introduced. This method relies on formation of a stable chelate with 9-BBN, which serves in the dual roles of protecting and activating the amine group. Three prototypical amino alcohols featuring various three-carbon bridging units led selectively to the monoalkylated derivatives in very high yields. The straightforward synthesis of the N-CD3 derivatives demonstrates the effectiveness of this approach.
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Affiliation(s)
- Galia Bar-Haim
- The School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel
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