1
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Gaspar FV, Azevedo MF, Carneiro LS, Ribeiro SB, Esteves PM, Buarque CD. 1,3-Dipolar cycloaddition reactions of enaminones and azides: Synthesis of 4-acyl-1,2,3-triazoles and mechanistic studies. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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2
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Bou Zeid S, Eid S, Najjar F, Macé A, Rivilla I, Cossío FP, Dorcet V, Roisnel T, Carreaux F. Microwave‐Assisted 1,3‐Dioxa‐[3,3]‐Sigmatropic Rearrangement of Substituted Allylic Carbamates: Application to the Synthesis of Novel 1,3‐Oxazine‐2,4‐dione Derivatives. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Samar Bou Zeid
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
- Department of Biologychemistry and Biochemistry Laboratoire d'innovation Thérapeutique Lebanese University faculty of Sciences II Fanar Lebanon
| | - Samar Eid
- Department of Biologychemistry and Biochemistry Laboratoire d'innovation Thérapeutique Lebanese University faculty of Sciences II Fanar Lebanon
| | - Fadia Najjar
- Department of Biologychemistry and Biochemistry Laboratoire d'innovation Thérapeutique Lebanese University faculty of Sciences II Fanar Lebanon
| | - Aurélie Macé
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
| | - Ivan Rivilla
- Departamento de Química Orgánica I Centro de Innovación en Química Avanzada (ORFEO-CINQA) Facultad de Química Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC) P° Manuel Lardizabal 3 20018 San Sebastián/Donostia Spain
- Ikerbasque Basque Fundation for Science 48009 Bilbao Spain
| | - Fernando P. Cossío
- Departamento de Química Orgánica I Centro de Innovación en Química Avanzada (ORFEO-CINQA) Facultad de Química Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC) P° Manuel Lardizabal 3 20018 San Sebastián/Donostia Spain
| | - Vincent Dorcet
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
| | - Thierry Roisnel
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
| | - François Carreaux
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226 35000 Rennes France
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3
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Santiago C, Jiménez-Aberasturi X, Leicea E, Lete MG, Sotomayor N, Lete E. Microwave-assisted palladium catalysed C-H acylation with aldehydes: synthesis and diversification of 3-acylthiophenes. Org Biomol Chem 2022; 20:852-861. [PMID: 35001098 DOI: 10.1039/d1ob02176a] [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
The use of MW allows the efficient palladium(II)-catalysed C-3 acylation of thiophenes with aldehydes via C(sp2)-H activation for the synthesis of (cyclo)alkyl/aryl thienyl ketones (43 examples). Compared to standard thermal conditions, the use of MW reduces the reaction time (15 to 30 min vs. 1 to 3 hours), leading to improved yields of the ketones (up to 92%). The control of positional selectivity is achieved by 2-pyridinyl and 2-pyrimidyl ortho-directing groups at C-2 of the thiophene scaffold. To show the synthetic applicability, selected ketones were subjected to further transformations, including intramolecular reactions to directly embed the directing group in the core structure of the new molecule.
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Affiliation(s)
- Carlos Santiago
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080 Bilbao, Spain.
| | - Xabier Jiménez-Aberasturi
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080 Bilbao, Spain.
| | - Eztizen Leicea
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080 Bilbao, Spain.
| | - Marta G Lete
- CIC bioGUNE, Bizkaia Technology Park, Building 801A, Derio 48170, Spain
| | - Nuria Sotomayor
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080 Bilbao, Spain.
| | - Esther Lete
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080 Bilbao, Spain.
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4
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Négrel S, Brunel JM. Efficient and selective microwave Oppenauer oxidation of sterol derivatives. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.131954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Banik BK, Boretti A. Hypotheses for synthesis of novel chiral beta-amino-beta-lactams through amidines. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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6
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Cáceres-Castillo D, Mena-Rejón GJ, Castro-Segura CS, Quijano-Quiñones RF. Mechanistic study of the formation of quercetine cycloadducts under microwave conditions: a theoretical approach. Mol Phys 2020. [DOI: 10.1080/00268976.2019.1643509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- David Cáceres-Castillo
- Department of Pharmaceutical Chemistry, Faculty of Chemistry, Autonomous University of Yucatan, Merida, Mexico
| | - Gonzalo J. Mena-Rejón
- Department of Pharmaceutical Chemistry, Faculty of Chemistry, Autonomous University of Yucatan, Merida, Mexico
| | - Carolina S. Castro-Segura
- Department of Theoretical Chemistry, Faculty of Chemistry, Autonomous University of Yucatan, Merida, Mexico
| | - Ramiro F. Quijano-Quiñones
- Department of Theoretical Chemistry, Faculty of Chemistry, Autonomous University of Yucatan, Merida, Mexico
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7
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Díaz‐Ortiz Á, Prieto P, de la Hoz A. A Critical Overview on the Effect of Microwave Irradiation in Organic Synthesis. CHEM REC 2018; 19:85-97. [DOI: 10.1002/tcr.201800059] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 07/05/2018] [Indexed: 01/24/2023]
Affiliation(s)
- Á. Díaz‐Ortiz
- Departamento de Química OrgánicaUniversidad de Castilla-La ManchaFacultad de Ciencias y Tecnologías Químicas. Instituto Regional deInvestigación Científica Aplicada (IRICA) Avda. Camilo José Cela, s/n E. 13071 Ciudad Real
| | - P. Prieto
- Departamento de Química OrgánicaUniversidad de Castilla-La ManchaFacultad de Ciencias y Tecnologías Químicas. Instituto Regional deInvestigación Científica Aplicada (IRICA) Avda. Camilo José Cela, s/n E. 13071 Ciudad Real
| | - A. de la Hoz
- Departamento de Química OrgánicaUniversidad de Castilla-La ManchaFacultad de Ciencias y Tecnologías Químicas. Instituto Regional deInvestigación Científica Aplicada (IRICA) Avda. Camilo José Cela, s/n E. 13071 Ciudad Real
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8
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Borges I, Silva AM, Modesto-Costa L. Microwave effects on NiMoS and CoMoS single-sheet catalysts. J Mol Model 2018; 24:128. [PMID: 29728781 DOI: 10.1007/s00894-018-3662-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 04/17/2018] [Indexed: 11/24/2022]
Abstract
Single-sheet nanoclusters of MoS2, NiMoS or CoMoS are widely used in hydrodesulfurization (HDS) catalysis in the petroleum industry. In HDS reactions under microwave irradiation, experiments indirectly pointed out that for pristine MoS2 reaction rates are accelerated because hot spots are generated on the catalyst bed. In this work, we investigated NiMoS and CoMoS isolated single-sheet substituted catalysts before and after thiophene adsorption focusing on quantifying the effect of microwave irradiation. For that purpose, density functional theory (DFT) molecular charge densities of each system were decomposed according to the distributed multipole analysis (DMA) of Stone. Site dipole values of each system were directly associated with a larger or smaller interaction with the microwave field according to a proposed general approach. We showed that microwave enhancement of HDS reaction rates can occur more efficiently in the CoMoS and NiMoS promoted clusters compared to pristine MoS2 in the following order: CoMoS > NiMoS > MoS2. The atomic origin of the catalyst hot spots induced by microwaves was clearly established in the promoted clusters.
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Affiliation(s)
- I Borges
- Departamento de Química, Instituto Militar de Engenharia, Rio de Janeiro, 22290-270, Brazil. .,Programa de Pós-Graduação em Engenharia de Defesa, Instituto Militar de Engenharia, Rio de Janeiro, 22290-270, Brazil.
| | - Alexander M Silva
- Departamento de Química, Instituto Militar de Engenharia, Rio de Janeiro, 22290-270, Brazil
| | - Lucas Modesto-Costa
- Departamento de Química, Instituto Militar de Engenharia, Rio de Janeiro, 22290-270, Brazil
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9
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Bakulev VA, Beryozkina T, Thomas J, Dehaen W. The Rich Chemistry Resulting from the 1,3-Dipolar Cycloaddition Reactions of Enamines and Azides. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701031] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | | | - Joice Thomas
- Department of Chemistry; The Bridge@USC and Loker Hydrocarbon Research Institute; University of Southern California; 90089-1661 Los Angeles CA USA
| | - Wim Dehaen
- Molecular Design and Synthesis; Department of Chemistry; KU Leuven; Celestijnenlaan 200F 3001 Leuven Belgium
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10
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Prieto P, de la Hoz A, Díaz-Ortiz A, Rodríguez AM. Understanding MAOS through computational chemistry. Chem Soc Rev 2017; 46:431-451. [DOI: 10.1039/c6cs00393a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Computational chemistry may explain and rationalize the impact of microwave irradiation in organic synthesis.
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Affiliation(s)
- P. Prieto
- Departamento de Química Orgánica
- Facultad de Ciencias y Tecnologías Químicas
- Universidad de Castilla-La Mancha
- 13071 Ciudad Real
- Spain
| | - A. de la Hoz
- Departamento de Química Orgánica
- Facultad de Ciencias y Tecnologías Químicas
- Universidad de Castilla-La Mancha
- 13071 Ciudad Real
- Spain
| | - A. Díaz-Ortiz
- Departamento de Química Orgánica
- Facultad de Ciencias y Tecnologías Químicas
- Universidad de Castilla-La Mancha
- 13071 Ciudad Real
- Spain
| | - A. M. Rodríguez
- Department of Chemical Sciences
- University of Naples Federico II
- Naples 80126
- Italy
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11
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Pavelyev RS, Vafina RM, Lodochnikova OA, Galiullina AS, Romanova EI, Balakin KV, Shtyrlin YG. Stereochemistry of hexachlorocyclopentadiene [4+2]-cycloaddition to 2-substituted 4,7-dihydro-1,3-dioxepins. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.07.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Kumar VB, Pulidindi IN, Gedanken A. Glucose production from potato peel waste under microwave irradiation. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2016.03.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Margetić D, Warrener RN, Butler DN, Holland CM. Dipolar Cycloaddition Reactions of Azomethine Ylides Generated by endocyclic-exocyclic 1,3-dipole Rearrangement. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2167] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Davor Margetić
- Laboratory for Physical-Organic Chemistry, Division of Organic Chemistry and Biochemistry; Ruđer Bošković Institute; Bijenička cesta 54 10000 Zagreb Croatia
| | - Ronald N. Warrener
- Centre for Molecular Architecture; Central Queensland University; Rockhampton 4702 Queensland Australia
| | - Douglas N. Butler
- Centre for Molecular Architecture; Central Queensland University; Rockhampton 4702 Queensland Australia
| | - Craig M. Holland
- Centre for Molecular Architecture; Central Queensland University; Rockhampton 4702 Queensland Australia
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14
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Resonance driven regioselective demethylation of berberine. Microwave assisted synthesis of berberrubine and its assessment as fluorescent chemosensor for alkanes. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.06.098] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Rodríguez AM, Prieto P, de la Hoz A, Díaz-Ortiz Á, Martín DR, García JI. Influence of Polarity and Activation Energy in Microwave-Assisted Organic Synthesis (MAOS). ChemistryOpen 2015; 4:308-17. [PMID: 26246993 PMCID: PMC4522181 DOI: 10.1002/open.201402123] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Indexed: 01/28/2023] Open
Abstract
The aim of this work was to determine the parameters that have decisive roles in microwave-assisted reactions and to develop a model, using computational chemistry, to predict a priori the type of reactions that can be improved under microwaves. For this purpose, a computational study was carried out on a variety of reactions, which have been reported to be improved under microwave irradiation. This comprises six types of reactions. The outcomes obtained in this study indicate that the most influential parameters are activation energy, enthalpy, and the polarity of all the species that participate. In addition to this, in most cases, slower reacting systems observe a much greater improvement under microwave irradiation. Furthermore, for these reactions, the presence of a polar component in the reaction (solvent, reagent, susceptor, etc.) is necessary for strong coupling with the electromagnetic radiation. We also quantified that an activation energy of 20-30 kcal mol(-1) and a polarity (μ) between 7-20 D of the species involved in the process is required to obtain significant improvements under microwave irradiation.
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Affiliation(s)
- Antonio M Rodríguez
- Departamento de Química Orgánica, Universidad de Castilla–La Mancha, Facultad de Ciencias y Tecnologías Químicas13071, Ciudad Real, Spain
| | - Pilar Prieto
- Departamento de Química Orgánica, Universidad de Castilla–La Mancha, Facultad de Ciencias y Tecnologías Químicas13071, Ciudad Real, Spain
| | - Antonio de la Hoz
- Departamento de Química Orgánica, Universidad de Castilla–La Mancha, Facultad de Ciencias y Tecnologías Químicas13071, Ciudad Real, Spain
| | - Ángel Díaz-Ortiz
- Departamento de Química Orgánica, Universidad de Castilla–La Mancha, Facultad de Ciencias y Tecnologías Químicas13071, Ciudad Real, Spain
| | - D Raúl Martín
- Departamento de Química Orgánica, Universidad de Castilla–La Mancha, Facultad de Ciencias y Tecnologías Químicas13071, Ciudad Real, Spain
| | - José I García
- Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea, CSIC-Universidad de ZaragozaC/. Pedro Cerbuna, 12, 50009, Zaragoza, Spain
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16
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Rodríguez AM, Prieto P, de la Hoz A, Díaz-Ortiz A, García JI. The issue of 'molecular radiators' in microwave-assisted reactions. Computational calculations on ring closing metathesis (RCM). Org Biomol Chem 2014; 12:2436-45. [PMID: 24599220 DOI: 10.1039/c3ob42536c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A DFT computational mechanistic study of the ring closing metathesis (RCM) reaction of diallyl ether or N,N-diallyl-p-toluenesulfonamide catalyzed by a second generation Grubbs-type ruthenium carbene complex has been carried out. This study was performed at the PCM(CH2Cl2)-B3LYP/6-311+G(2d,p)//B3LYP/SDD theory level. The aim of this work was to shed light on the influence that microwave irradiation has on these reactions and to gain insight into the so-called 'molecular radiator' effect. The outcomes obtained indicate that thermal effects induced by microwave irradiation decrease the catalytic induction period. The presence of a polar reagent and/or polar species in the reaction that increases the polarity of the medium may enhance this thermal effect.
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Affiliation(s)
- A M Rodríguez
- Departamento de Química Orgánica, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain.
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17
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Torregrosa R, Balcells M, Torres M, Canela-Garayoa R. Chemoenzymatic Solvent-free Synthesis of 1-Monopalmitin Using a Microwave Reactor. Nat Prod Commun 2014. [DOI: 10.1177/1934578x1400900809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
An environmentally friendly method for the synthesis of 1-monopalmitin has been developed. The procedure consists of a two-step, solvent-free chemoenzymatic reaction. In the first step, palmitic acid is esterified with solketal (4-hydroxymethyl-2,2-dimethyl-1,3-dioxolane) using Novozym 435 by both conventional heating and microwave irradiation. The use of a microwave reactor allows the enzymatic synthesis of the intermediate compound with a similar yield as that achieved using conventional heating. In the second step, 1,2-acetonide-3-palmitoyl glycerol is cleaved to yield 1-monopalmitin by means of a cation-exchange resin and water or aliphatic alcohols as hydrolytic reagent in solvent-free conditions. The hydrolysis was accomplished in 15 min at 85°C. The best yield was obtained using 1-pentanol. We conclude that the yield achieved depends on the batch and nature of the cation-exchange resin used as catalyst.
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Affiliation(s)
- Rubén Torregrosa
- Department of Chemistry, Universitat de Lleida-Agrotecnio Center, Avda. Alcalde Rovira Roure, 191, E-25198, Lleida, Spain
| | - Mercé Balcells
- Department of Chemistry, Universitat de Lleida-Agrotecnio Center, Avda. Alcalde Rovira Roure, 191, E-25198, Lleida, Spain
| | - Mercé Torres
- Department of Food Technology, Universitat de Lleida, Avda. Alcalde Rovira Roure, 191, E-25198, Lleida, Spain
| | - Ramon Canela-Garayoa
- Department of Chemistry, Universitat de Lleida-Agrotecnio Center, Avda. Alcalde Rovira Roure, 191, E-25198, Lleida, Spain
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Cebrián C, de Mata Muñoz J, Strassert CA, Prieto P, Díaz-Ortiz Á, De Cola L, de la Hoz A. Synthesis of Bright Alkenyl-1H-1,2,4-triazoles: A Theoretical and Photophysical Study. Chempluschem 2014. [DOI: 10.1002/cplu.201402153] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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19
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Rodriguez AM, Cebrián C, Prieto P, García JI, de la Hoz A, Díaz-Ortiz Á. DFT Studies on Cobalt-Catalyzed Cyclotrimerization Reactions: The Mechanism and Origin of Reaction Improvement under Microwave Irradiation. Chemistry 2012; 18:6217-24. [DOI: 10.1002/chem.201103560] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2011] [Indexed: 11/06/2022]
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20
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Margetić D, Warrener RN, Butler DN, Jin CM. A cascade thermal isomerisation of cyclobutane di-(carbomethoxy) Δ2-1,2,3-triazolines with intramolecular 1,3-dipolar cycloreversion as the key step. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.02.073] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Sarma R, Sarmah MM, Prajapati D. Microwave-Promoted Catalyst- and Solvent-Free Aza-Diels–Alder Reaction of Aldimines with 6-[2-(Dimethylamino)vinyl]-1,3-dimethyluracil. J Org Chem 2012; 77:2018-23. [DOI: 10.1021/jo202346w] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Rupam Sarma
- Medicinal Chemistry Division, CSIR-North-East Institute of Science & Technology, Jorhat, Assam 785006, India
| | - Manas M. Sarmah
- Medicinal Chemistry Division, CSIR-North-East Institute of Science & Technology, Jorhat, Assam 785006, India
| | - Dipak Prajapati
- Medicinal Chemistry Division, CSIR-North-East Institute of Science & Technology, Jorhat, Assam 785006, India
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Sun T, Jiang B, Pan B. Microwave accelerated transglycosylation of rutin by cyclodextrin glucanotransferase from Bacillus sp. SK13.002. Int J Mol Sci 2011; 12:3786-96. [PMID: 21747706 PMCID: PMC3131590 DOI: 10.3390/ijms12063786] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Revised: 05/12/2011] [Accepted: 05/25/2011] [Indexed: 11/25/2022] Open
Abstract
Rutin was subjected to intermolecular transglycosylation assisted with microwave irradiation using cyclodextrin glucanotransferase (CGTase) produced from Bacillus sp. SK13.002. Compared with the conventional enzymatic method for rutin transglycosylation (without microwave irradiation), microwave-assisted reaction (MAR) was much faster and thus more efficient. While the conventional reaction took dozens of hours to reach the highest conversion rate of rutin and yield of transglycosylated rutin, MAR of rutin transglycosylation completed within only 6 min providing almost the same conversion rate of rutin and yield of products consisting of mono-, di-, tri-, tetra-, penta-glucosylated rutins. The optimum transglycosylation conditions for microwave irradiation were 40 °C and 60 W with the reaction system consisting mainly of the mixture of 0.3 g rutin (0.49 mmol) pre-dissolved in 15 mL methanol, 1.8 g maltodextrin in 15 mL of 0.2 M sodium acetate buffer (pH 5.5) and CGTase (900 U). Results from this study indicated that MAR could be a potentially useful and economical technique for a faster and more efficient transglycosylation of rutin.
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Affiliation(s)
- Tao Sun
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; E-Mail:
| | - Bo Jiang
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; E-Mail:
| | - Beilei Pan
- Chinese Institute of Food Science and Technology, Beijing 100006, China; E-Mail:
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23
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Lambermont-Thijs HML, Fijten MWM, van der Linden AJ(T, van Lankvelt BM, Bloksma MM, Schubert US, Hoogenboom R. Efficient Cationic Ring-Opening Polymerization of Diverse Cyclic Imino Ethers: Unexpected Copolymerization Behavior. Macromolecules 2011. [DOI: 10.1021/ma200426y] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hanneke M. L. Lambermont-Thijs
- Laboratory of Macromolecular Chemistry and Nanoscience, Eindhoven University of Technology, Den Dolech 2, 5612AZ Eindhoven, The Netherlands
| | - Martin W. M. Fijten
- Laboratory of Macromolecular Chemistry and Nanoscience, Eindhoven University of Technology, Den Dolech 2, 5612AZ Eindhoven, The Netherlands
| | - A. J. (Ton) van der Linden
- Laboratory of Macromolecular Chemistry and Nanoscience, Eindhoven University of Technology, Den Dolech 2, 5612AZ Eindhoven, The Netherlands
| | - Bart M. van Lankvelt
- Laboratory of Macromolecular Chemistry and Nanoscience, Eindhoven University of Technology, Den Dolech 2, 5612AZ Eindhoven, The Netherlands
| | - Meta M. Bloksma
- Laboratory of Macromolecular Chemistry and Nanoscience, Eindhoven University of Technology, Den Dolech 2, 5612AZ Eindhoven, The Netherlands
- Laboratory of Organic and Macromolecular Chemistry (IOMC) and Jena Center for Soft Matter (JCSM), Friedrich-Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Ulrich S. Schubert
- Laboratory of Macromolecular Chemistry and Nanoscience, Eindhoven University of Technology, Den Dolech 2, 5612AZ Eindhoven, The Netherlands
- Laboratory of Organic and Macromolecular Chemistry (IOMC) and Jena Center for Soft Matter (JCSM), Friedrich-Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Richard Hoogenboom
- Laboratory of Macromolecular Chemistry and Nanoscience, Eindhoven University of Technology, Den Dolech 2, 5612AZ Eindhoven, The Netherlands
- Supramolecular Chemistry Group, Department of Organic Chemistry, Ghent University, Krijgslaan 281 S4, B-9000, Ghent, Belgium
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Rodriguez AM, Prieto P, de la Hoz A, Díaz-Ortiz A. “In silico” mechanistic studies as predictive tools in microwave-assisted organic synthesis. Org Biomol Chem 2011; 9:2371-7. [DOI: 10.1039/c0ob01037e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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