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Abstract
Nitrogen-containing heterocycles are important scaffolds for a large number of compounds with biological, pharmaceutical, industrial and optoelectronic applications. A wide range of different methodologies for the preparation of N-heterocycles are based on metal-catalyzed cyclization of suitable substrates. Due to the growing interest in Green Chemistry criteria over the past two decades, the use of supported metal catalysts in the preparation of N-heterocycles has become a central topic in Organic Chemistry. Here we will give a critical overview of all the solid supported metal catalysts applied in the synthesis of N-heterocycles, following a systematic approach as a function of the type of support: (i) metal catalysts supported on inorganic matrices; (ii) metal catalysts supported on organic matrices; (iii) metal catalysts supported on hybrid inorganic-organic matrices. In particular, we will try to emphasize the effective heterogeneity and recyclability of the described metal catalysts, specifying which studies were carried out in order to evaluate these aspects.
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Nasrallah H, Lyu P, Maurin G, El-Roz M. Highly efficient CO2 reduction under visible-light on non-covalent Ru⋯Re assembled photocatalyst: Evidence on the electron transfer mechanism. J Catal 2021. [DOI: 10.1016/j.jcat.2021.09.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Czarnocki S, Monsigny L, Sienkiewicz M, Kajetanowicz A, Grela K. Ruthenium Olefin Metathesis Catalysts Featuring N-Heterocyclic Carbene Ligands Tagged with Isonicotinic and 4-(Dimethylamino)benzoic Acid Rests: Evaluation of a Modular Synthetic Strategy. Molecules 2021; 26:molecules26175220. [PMID: 34500654 PMCID: PMC8433898 DOI: 10.3390/molecules26175220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/11/2021] [Accepted: 08/20/2021] [Indexed: 11/26/2022] Open
Abstract
A modular and flexible strategy towards the synthesis of N-heterocyclic carbene (NHC) ligands bearing Brønsted base tags has been proposed and then adopted in the preparation of two tagged NHC ligands bearing rests of isonicotinic and 4-(dimethylamino)benzoic acids. Such tagged NHC ligands represent an attractive starting point for the synthesis of olefin metathesis ruthenium catalysts tagged in non-dissociating ligands. The influence of the Brønsted basic tags on the activity of such obtained olefin metathesis catalysts has been studied.
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Abd El Sater M, Mellah M, Dragoe D, Kolodziej E, Jaber N, Schulz E. Chiral Chromium Salen@rGO as Multipurpose and Recyclable Heterogeneous Catalyst. Chemistry 2021; 27:9454-9460. [PMID: 33856725 DOI: 10.1002/chem.202101003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Indexed: 11/07/2022]
Abstract
The first immobilization of a pyrene-tagged chromium salen complex through π-π noncovalent interactions on reduced graphene oxide (rGO) is described. A very robust supported catalytic system is obtained to promote asymmetric catalysis in repeated cycles, without loss of activity or enantioselectivity. This specific behavior was demonstrated in two different catalytic reactions (up to ten reuses) promoted by chromium salen complexes, the cyclohexene oxide ring-opening reaction and the hetero-Diels-Alder cycloaddition between various aldehydes and Danishefsky's diene. Furthermore, the chiral chromium salen@rGO has been found to be compatible with a multi-substrate type use, in which the structure of the substrate involved is modified each time the catalyst is reused.
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Affiliation(s)
- Mariam Abd El Sater
- Equipe de Catalyse Moléculaire, Université Paris Saclay, Institut de Chimie Moléculaire et des Matériaux d'Orsay, Bâtiment 420, 91405, Orsay Cedex, France.,Laboratoire de Chimie Médicinale et des Produits Naturels, Université Libanaise, Faculté des Sciences (I) et PRASE-EDST, postcode is missing, Hadath, Beyrouth, Lebanon
| | - Mohamed Mellah
- Equipe de Catalyse Moléculaire, Université Paris Saclay, Institut de Chimie Moléculaire et des Matériaux d'Orsay, Bâtiment 420, 91405, Orsay Cedex, France
| | - Diana Dragoe
- Equipe de Catalyse Moléculaire, Université Paris Saclay, Institut de Chimie Moléculaire et des Matériaux d'Orsay, Bâtiment 420, 91405, Orsay Cedex, France
| | - Emilie Kolodziej
- Equipe de Catalyse Moléculaire, Université Paris Saclay, Institut de Chimie Moléculaire et des Matériaux d'Orsay, Bâtiment 420, 91405, Orsay Cedex, France
| | - Nada Jaber
- Laboratoire de Chimie Médicinale et des Produits Naturels, Université Libanaise, Faculté des Sciences (I) et PRASE-EDST, postcode is missing, Hadath, Beyrouth, Lebanon
| | - Emmanuelle Schulz
- Equipe de Catalyse Moléculaire, Université Paris Saclay, Institut de Chimie Moléculaire et des Matériaux d'Orsay, Bâtiment 420, 91405, Orsay Cedex, France
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Masoud SM, Vorobyeva DV, Petropavlovskikh DA, Bruneau C, Osipov SN. Fluorine-containing ruthenium-based olefin metathesis catalysts. RUSSIAN CHEMICAL REVIEWS 2021. [DOI: 10.1070/rcr4984] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The review summarizes literature data on the methods for the introduction of fluorine atoms and fluoralkyl groups into different ligands to construct metathesis-active ruthenium carbene complexes. It also analyzes the influence of fluorinated ligands on the catalytic activity of the complexes. The choice, structure and positions of fluorinated substituents in NHC ligands are generally dictated by the desire to increase the electrophilicity of the ruthenium atom due to the electron-withdrawing effect of fluorine atoms and fluoroalkyl groups, resulting, as a rule, in an increase in the activity of the ruthenium complex. In catalysts with unsymmetrical fluorine-containing NHC ligands, there is a possibility of additional Ru–F coordination, making the complexes much more stable and, consequently, more active. The presence of fluorine in chelating alkylidene ligands provides an increase in the catalyst initiation rate due to a weakening of the ruthenium – heteroatom bond. Besides, the introduction of polyfluoroalkyl groups into ligands solves the problem of catalyst recovery using fluorous biphasic systems for reuse.
The bibliography includes 172 references.
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Yuan YC, Abd El Sater M, Mellah M, Jaber N, David ORP, Schulz E. Enantiopure isothiourea@carbon-based support: stacking interactions for recycling a lewis base in asymmetric catalysis. Org Chem Front 2021. [DOI: 10.1039/d1qo00646k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An enantiopure isothiourea (hyperBTM) was functionalized by a pyrene moiety via click chemistry; immobilized on reduced Graphene Oxide, this recyclable chiral organocatalyst promotes formal [3+2] cycloaddition of ammonium enolates with oxaziridines.
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Affiliation(s)
- Yu-Chao Yuan
- Université Paris Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay, 91405 Orsay, France
- Institut Lavoisier, UMR 8180, Université de Versailles Saint-Quentin-en-Yvelines, Université Paris Saclay, 45 avenue des Etats-Unis, 78035 Versailles, France
| | - Mariam Abd El Sater
- Université Paris Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay, 91405 Orsay, France
- Laboratoire de Chimie Médicinale et des Produits Naturels, Université Libanaise, Faculté des Sciences (I) and PRASE-EDST, Hadath, Beyrouth, Lebanon
| | - Mohamed Mellah
- Université Paris Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay, 91405 Orsay, France
| | - Nada Jaber
- Laboratoire de Chimie Médicinale et des Produits Naturels, Université Libanaise, Faculté des Sciences (I) and PRASE-EDST, Hadath, Beyrouth, Lebanon
| | - Olivier R. P. David
- Institut Lavoisier, UMR 8180, Université de Versailles Saint-Quentin-en-Yvelines, Université Paris Saclay, 45 avenue des Etats-Unis, 78035 Versailles, France
| | - Emmanuelle Schulz
- Université Paris Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay, 91405 Orsay, France
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Abstract
Olefin metathesis is the catalytic transformation of olefinic substrates, finding a wide range of applications in organic synthesis. The mesoporous molecular sieve Santa Barbara Amorphous (SBA-15) has proven to be an excellent support for metathesis catalysts thanks to its regular mesoporous structure, high BET area, and large pore volume. A survey of catalysts consisting of (i) molybdenum and tungsten oxides on SBA-15, and (ii) molybdenum and ruthenium organometallic complexes (Schrock and Grubbs-type carbenes) on SBA-15 is provided together with their characterization and catalytic performance in various metathesis reactions. The comparison with catalysts based on other supports demonstrates the high quality of the mesoporous molecular sieve SBA-15 as an advanced catalyst support.
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Qian Y, Jung S, Jin M. Noncovalent Immobilization of Palladium Complex onto Reduced Graphene Oxide: A Highly Efficient and Recyclable Catalyst for Suzuki Reaction. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yingjie Qian
- Department of Chemistry and Chemical EngineeringInha University Incheon 22212 South Korea
| | - Sang‐Yung Jung
- Department of Chemistry and Chemical EngineeringInha University Incheon 22212 South Korea
| | - Myung‐Jong Jin
- Department of Chemistry and Chemical EngineeringInha University Incheon 22212 South Korea
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Karami K, Ramezanpour A, Zakariazadeh M, Silvestru C. Catalytic activity and facile recovery of a cyclometalated N‐heterocyclic carbene palladium(II) complex immobilized by non‐covalent interactions on reduced graphene oxide. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4907] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Kazem Karami
- Department of ChemistryIsfahan University of Technology Isfahan 84156/83111 Iran
| | - Azar Ramezanpour
- Department of ChemistryIsfahan University of Technology Isfahan 84156/83111 Iran
| | - Mostafa Zakariazadeh
- Research Institute for Fundamental Sciences (RIFS)University of Tabriz Tabriz Iran
| | - Cristian Silvestru
- Department of Chemistry and Chemical EngineeringBabes‐Bolyai University Cluj‐Napoca Romania
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Axet MR, Durand J, Gouygou M, Serp P. Surface coordination chemistry on graphene and two-dimensional carbon materials for well-defined single atom supported catalysts. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2019. [DOI: 10.1016/bs.adomc.2019.01.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Affiliation(s)
- Vincenzo Campisciano
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Michelangelo Gruttadauria
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Francesco Giacalone
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
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Kaczanowska K, Chwalba M, Pastva J, Kubů M, Ruszczyńska A, Bulska E, Balcar H, Skowerski K. Carboxyl Graphene as a Superior Support for Bulky Ruthenium-Based Olefin Metathesis Catalyst. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Jakub Pastva
- Apeiron Synthesis SA, Duńska 9, 54-427 Wrocław, Poland
| | - Martin Kubů
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i., Dolejškova 3, 182 23 Prague 8, Czech Republic
| | - Anna Ruszczyńska
- Centrum Nauk Biologiczno Chemicznych Uniwersytetu Warszawskiego Analityczne Centrum Eksperckie, ul. Żwirki i Wigury 101, 02-089 Warszawa, Poland
| | - Ewa Bulska
- Centrum Nauk Biologiczno Chemicznych Uniwersytetu Warszawskiego Analityczne Centrum Eksperckie, ul. Żwirki i Wigury 101, 02-089 Warszawa, Poland
| | - Hynek Balcar
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i., Dolejškova 3, 182 23 Prague 8, Czech Republic
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Chen W, Liu P, Min L, Zhou Y, Liu Y, Wang Q, Duan W. Non-covalently Functionalized Graphene Oxide-Based Coating to Enhance Thermal Stability and Flame Retardancy of PVA Film. NANO-MICRO LETTERS 2018; 10:39. [PMID: 30393688 PMCID: PMC6199081 DOI: 10.1007/s40820-018-0190-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 01/11/2018] [Indexed: 05/29/2023]
Abstract
The synergistic effect of conventional flame-retardant elements and graphene has received extensive attention in the development of a new class of flame retardants. Compared to covalent modification, the non-covalent strategy is simpler and expeditious and entirely preserves the original quality of graphene. Thus, non-covalently functionalized graphene oxide (FGO) with a phosphorus-nitrogen compound was successfully prepared via a one-pot process in this study. Polyethyleneimine and FGO were alternatively deposited on the surface of a poly(vinyl alcohol) (PVA) film via layer-by-layer assembly driven by electrostatic interaction, imparting excellent flame retardancy to the coated PVA film. The multilayer FGO-based coating formed a protective shield encapsulating the PVA matrix, effectively blocking the transfer of heat and mass during combustion. The coated PVA has a higher initial decomposition temperature of about 260 °C and a nearly 60% reduction in total heat release than neat PVA does. Our results may have a promising prospect for flame-retardant polymers.
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Affiliation(s)
- Wenhua Chen
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, People's Republic of China
| | - Pengju Liu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, People's Republic of China
| | - Lizhen Min
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, People's Republic of China
| | - Yiming Zhou
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, People's Republic of China
| | - Yuan Liu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, People's Republic of China.
| | - Qi Wang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, People's Republic of China
| | - Wenfeng Duan
- State Key Laboratory of Special Functional Waterproof Materials, Beijing Oriental Yuhong Waterproof Technology Co. Ltd., Beijing, 101300, People's Republic of China
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2016. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.09.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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