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Romaní-Cubells E, Martínez-Erro S, Morales V, Chocarro-Calvo A, García-Martínez JM, Sanz R, García-Jiménez C, García-Muñoz RA. Magnetically modified-mitoxantrone mesoporous organosilica drugs: an emergent multimodal nanochemotherapy for breast cancer. J Nanobiotechnology 2024; 22:249. [PMID: 38745193 PMCID: PMC11092073 DOI: 10.1186/s12951-024-02522-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 05/01/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Chemotherapy, the mainstay treatment for metastatic cancer, presents serious side effects due to off-target exposure. In addition to the negative impact on patients' quality of life, side effects limit the dose that can be administered and thus the efficacy of the drug. Encapsulation of chemotherapeutic drugs in nanocarriers is a promising strategy to mitigate these issues. However, avoiding premature drug release from the nanocarriers and selectively targeting the tumour remains a challenge. RESULTS In this study, we present a pioneering method for drug integration into nanoparticles known as mesoporous organosilica drugs (MODs), a distinctive variant of periodic mesoporous organosilica nanoparticles (PMOs) in which the drug is an inherent component of the silica nanoparticle structure. This groundbreaking approach involves the chemical modification of drugs to produce bis-organosilane prodrugs, which act as silica precursors for MOD synthesis. Mitoxantrone (MTO), a drug used to treat metastatic breast cancer, was selected for the development of MTO@MOD nanomedicines, which demonstrated a significant reduction in breast cancer cell viability. Several MODs with different amounts of MTO were synthesised and found to be efficient nanoplatforms for the sustained delivery of MTO after biodegradation. In addition, Fe3O4 NPs were incorporated into the MODs to generate magnetic MODs to actively target the tumour and further enhance drug efficacy. Importantly, magnetic MTO@MODs underwent a Fenton reaction, which increased cancer cell death twofold compared to non-magnetic MODs. CONCLUSIONS A new PMO-based material, MOD nanomedicines, was synthesised using the chemotherapeutic drug MTO as a silica precursor. MTO@MOD nanomedicines demonstrated their efficacy in significantly reducing the viability of breast cancer cells. In addition, we incorporated Fe3O4 into MODs to generate magnetic MODs for active tumour targeting and enhanced drug efficacy by ROS generation. These findings pave the way for the designing of silica-based multitherapeutic nanomedicines for cancer treatment with improved drug delivery, reduced side effects and enhanced efficacy.
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Affiliation(s)
- Eva Romaní-Cubells
- Department of Chemical and Environmental Technology, Rey Juan Carlos University (URJC), C/Tulipán s/n, Móstoles, Madrid, 28933, Spain
| | - Samuel Martínez-Erro
- Department of Chemical and Environmental Technology, Rey Juan Carlos University (URJC), C/Tulipán s/n, Móstoles, Madrid, 28933, Spain
| | - Victoria Morales
- Department of Chemical and Environmental Technology, Rey Juan Carlos University (URJC), C/Tulipán s/n, Móstoles, Madrid, 28933, Spain
| | - Ana Chocarro-Calvo
- Department of Basic Health Sciences, Rey Juan Carlos University (URJC), Avda. Atenas s/n, Alcorcón, Madrid, 28922, Spain
| | - José M García-Martínez
- Department of Basic Health Sciences, Rey Juan Carlos University (URJC), Avda. Atenas s/n, Alcorcón, Madrid, 28922, Spain
| | - Raúl Sanz
- Department of Chemical and Environmental Technology, Rey Juan Carlos University (URJC), C/Tulipán s/n, Móstoles, Madrid, 28933, Spain
| | - Custodia García-Jiménez
- Department of Basic Health Sciences, Rey Juan Carlos University (URJC), Avda. Atenas s/n, Alcorcón, Madrid, 28922, Spain.
| | - Rafael A García-Muñoz
- Department of Chemical and Environmental Technology, Rey Juan Carlos University (URJC), C/Tulipán s/n, Móstoles, Madrid, 28933, Spain.
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Martinez-Erro S, Navas F, Romaní-Cubells E, Fernández-García P, Morales V, Sanz R, García-Muñoz RA. Kidney-Protector Lipidic Cilastatin Derivatives as Structure-Directing Agents for the Synthesis of Mesoporous Silica Nanoparticles for Drug Delivery. Int J Mol Sci 2021; 22:7968. [PMID: 34360733 PMCID: PMC8348040 DOI: 10.3390/ijms22157968] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 07/21/2021] [Accepted: 07/22/2021] [Indexed: 01/23/2023] Open
Abstract
Mesoporous silica nanomaterials have emerged as promising vehicles in controlled drug delivery systems due to their ability to selectively transport, protect, and release pharmaceuticals in a controlled and sustained manner. One drawback of these drug delivery systems is their preparation procedure that usually requires several steps including the removal of the structure-directing agent (surfactant) and the later loading of the drug into the porous structure. Herein, we describe the preparation of mesoporous silica nanoparticles, as drug delivery systems from structure-directing agents based on the kidney-protector drug cilastatin in a simple, fast, and one-step process. The concept of drug-structure-directing agent (DSDA) allows the use of lipidic derivatives of cilastatin to direct the successful formation of mesoporous silica nanoparticles (MSNs). The inherent pharmacological activity of the surfactant DSDA cilastatin-based template permits that the MSNs can be directly employed as drug delivery nanocarriers, without the need of extra steps. MSNs thus synthesized have shown good sphericity and remarkable textural properties. The size of the nanoparticles can be adjusted by simply selecting the stirring speed, time, and aging temperature during the synthesis procedure. Moreover, the release experiments performed on these materials afforded a slow and sustained drug release over several days, which illustrates the MSNs potential utility as drug delivery system for the cilastatin cargo kidney protector. While most nanotechnology strategies focused on combating the different illnesses this methodology emphasizes on reducing the kidney toxicity associated to cancer chemotherapy.
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Affiliation(s)
| | | | | | | | | | | | - Rafael A. García-Muñoz
- Department of Chemical and Environmental Technology, Rey Juan Carlos University (URJC), C/Tulipán s/n, Móstoles, 28933 Madrid, Spain; (S.M.-E.); (F.N.); (E.R.-C.); (P.F.-G.); (V.M.); (R.S.)
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Cui M, Zhang W, Xie L, Chen L, Xu L. Chiral Mesoporous Silica Materials: A Review on Synthetic Strategies and Applications. Molecules 2020; 25:E3899. [PMID: 32867051 PMCID: PMC7504517 DOI: 10.3390/molecules25173899] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/18/2020] [Accepted: 08/26/2020] [Indexed: 12/20/2022] Open
Abstract
Because of its tunable textural properties and chirality feature, chiral mesoporous silica (CMS) gained significant consideration in many fields and has been developed rapidly in recent years. In this review, we provide an overview of synthesis strategies for fabricating CMS together with its main applications. The properties of CMS, including morphology and mesostructures and enantiomer excess (ee), can be altered according to the synthetic conditions during the synthesis process. Despite its primary stage, CMS has attracted extensive attention in many fields. In particular, CMS nanoparticles are widely used for enantioselective resolution and adsorption of chiral compounds with desirable separation capability. Also, CMS acts as a promising candidate for the effective delivery of chiral or achiral drugs to produce a chiral-responsive manner. Moreover, CMS also plays an important role in chromatographic separations and asymmetric catalysis. There has been an in-depth review of the synthetic methods and mechanisms of CMS. And this review aims to give a deep insight into the synthesis and application of CMS, especially in recent years, and highlights the significance that it may have in the future.
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Affiliation(s)
| | | | | | | | - Lu Xu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China; (M.C.); (W.Z.); (L.X.); (L.C.)
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4
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Moaser AG, Ahadi A, Rouhani S, Mamba BB, Msagati TAM, Rostamnia S, Kavetskyy T, Dugheri S, Khaksar S, Hasanzadeh A, Shokouhimehr M. Curbed of molybdenum oxido-diperoxido complex on ionic liquid body of mesoporous Bipy-PMO-IL as a promising catalyst for selective sulfide oxidation. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113388] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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5
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Pérez-Garnes M, Gutiérrez-Salmerón M, Morales V, Chocarro-Calvo A, Sanz R, García-Jiménez C, García-Muñoz RA. Engineering hollow mesoporous silica nanoparticles to increase cytotoxicity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 112:110935. [PMID: 32409082 DOI: 10.1016/j.msec.2020.110935] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 03/15/2020] [Accepted: 04/04/2020] [Indexed: 01/22/2023]
Abstract
Hollow mesoporous silica nanoparticles (HMSNs) consist of a network of cavities confined by mesoporous shells that have emerged as promising tools for drug delivery or diagnostic. The physicochemical properties of HMSNs are dictated by the synthesis conditions but which conditions affect which property and how it impacts on biological interactions is unclear. Here by changing the concentration of the structure-directing agent (SDA), the pH and the ratio between SDA and added salt (NaCl) we determine the effects in size, morphology, surface charge and density or degree of compaction (physicochemical properties) of HMSNs and define their impact on their biological interactions with human colon cancer or healthy cells at the level of cellular uptake and viability. Increased size or density/degree of compaction of HMSNs increases their cytotoxicity. Strikingly, high salt concentrations in the synthesis medium leads to a spiky-shell morphology that provokes nuclear fragmentation and irreversible cell damage turning HMSNs lethal and unveiling intrinsic therapeutic potential. This strategy may open new avenues to design HMSNs nanoarchitectures with intrinsic therapeutic properties without incorporation of external pharmaceutical ingredients.
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Affiliation(s)
- Manuel Pérez-Garnes
- Department of Chemical and Environmental Technology, Rey Juan Carlos University, C/ Tulipán s/n, 28933 Móstoles, Madrid, Spain
| | - María Gutiérrez-Salmerón
- Department of Basic Health Sciences, Rey Juan Carlos University, Avda. Atenas s/n, 28922 Alcorcón, Madrid, Spain
| | - Victoria Morales
- Department of Chemical and Environmental Technology, Rey Juan Carlos University, C/ Tulipán s/n, 28933 Móstoles, Madrid, Spain
| | - Ana Chocarro-Calvo
- Department of Basic Health Sciences, Rey Juan Carlos University, Avda. Atenas s/n, 28922 Alcorcón, Madrid, Spain
| | - Raúl Sanz
- Department of Chemical and Environmental Technology, Rey Juan Carlos University, C/ Tulipán s/n, 28933 Móstoles, Madrid, Spain
| | - Custodia García-Jiménez
- Department of Basic Health Sciences, Rey Juan Carlos University, Avda. Atenas s/n, 28922 Alcorcón, Madrid, Spain.
| | - Rafael A García-Muñoz
- Department of Chemical and Environmental Technology, Rey Juan Carlos University, C/ Tulipán s/n, 28933 Móstoles, Madrid, Spain.
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Santos Fernandes A, Maître P, Carita Correra T. Evaluation of the Katsuki–Sharpless Epoxidation Precatalysts by ESI-FTMS, CID, and IRMPD Spectroscopy. J Phys Chem A 2019; 123:1022-1029. [DOI: 10.1021/acs.jpca.8b09979] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- André Santos Fernandes
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes, 748, 05508-000, São Paulo, SP, Brazil
| | - Philippe Maître
- Laboratoire de Chimie Physique, URM8000, CNRS, Université Paris-Sud, Université Paris-Saclay, 91405, Orsay, France
| | - Thiago Carita Correra
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes, 748, 05508-000, São Paulo, SP, Brazil
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7
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Han J, Soloshonok VA, Klika KD, Drabowicz J, Wzorek A. Chiral sulfoxides: advances in asymmetric synthesis and problems with the accurate determination of the stereochemical outcome. Chem Soc Rev 2017; 47:1307-1350. [PMID: 29271432 DOI: 10.1039/c6cs00703a] [Citation(s) in RCA: 162] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Chiral sulfoxides are in extremely high demand in nearly every sector of the chemical industry concerned with the design and development of new synthetic reagents, drugs, and functional materials. The primary objective of this review is to update readers on the latest developments from the past five years (2011-2016) in the preparation of optically active sulfoxides. Methodologies covered include catalytic asymmetric sulfoxidation using either chemical, enzymatic, or hybrid biocatalytic means; kinetic resolution involving oxidation to sulfones, reduction to sulfides, modification of side chains, and imidation to sulfoximines; as well as various other methods including nucleophilic displacement at the sulfur atom for the desymmetrization of achiral sulfoxides, enantioselective recognition and separation based on either metal-organic frameworks (MOF's) or host-guest chemistry, and the Horner-Wadsworth-Emmons reaction. A second goal of this work concerns a critical discussion of the problem of the accurate determination of the stereochemical outcome of a reaction due to the self-disproportionation of enantiomers (SDE) phenomenon, particularly as it relates to chiral sulfoxides. The SDE is a little-appreciated phenomenon that can readily and spontaneously occur for scalemic samples when subjected to practically any physicochemical process. It has now been unequivocally demonstrated that ignorance in the SDE phenomenon inevitably leads to erroneous interpretation of the stereochemical outcome of catalytic enantioselective reactions, in particular, for the synthesis of chiral sulfoxides. It is hoped that this two-pronged approach to covering the chemistry of chiral sulfoxides will be appealing, engaging, and motivating for current research-active authors to respond to in their future publications in this exciting area of current research.
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Affiliation(s)
- Jianlin Han
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Nanjing University, 210093 Nanjing, China.
| | - Vadim A Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastián, Spain. and IKERBASQUE, Basque Foundation for Science, Alameda Urquijo 36-5, Plaza Bizkaia, 48011 Bilbao, Spain
| | - Karel D Klika
- Molecular Structure Analysis, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, D-69009 Heidelberg, Germany.
| | - Józef Drabowicz
- Department of Heterooganic Chemistry, Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łódź, Poland and Institute of Chemistry, Environmental Protection and Biotechnology, Jan Długosz University in Częstochowa, Armii Krajowej 13/15, 42-201 Częstochowa, Poland
| | - Alicja Wzorek
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastián, Spain. and Institute of Chemistry, Jan Kochanowski University in Kielce, Swiętokrzyska 15G, 25-406 Kielce, Poland.
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8
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Shen C, Qiao J, Zhao L, Zheng K, Jin J, Zhang P. An efficient silica supported Chitosan@vanadium catalyst for asymmetric sulfoxidation and its application in the synthesis of esomeprazole. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2017.01.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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10
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Organo-functionalized trimethoxysilanes featuring thioester linkage: Synthetic and UV–Vis spectral investigations. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.02.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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11
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Fernandes CI, Stenning GBG, Taylor JD, Nunes CD, D. Vaz P. Helical Channel Mesoporous Materials with Embedded Magnetic Iron Nanoparticles: Chiral Recognition and Implications in Asymmetric Olefin Epoxidation. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500441] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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12
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Abidli A. One-pot direct synthesis route to self-assembled highly ordered Zn-decorated mesoporous aluminium oxide toward efficient and sustainable metathesis heterogeneous catalyst design. RSC Adv 2015. [DOI: 10.1039/c5ra12057h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Zn-modified well-ordered mesoporous alumina successfully synthesizedviaone-pot process and evaluated as support for rhenium-based catalyst for methyl oleate self-metathesis.
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Affiliation(s)
- Abdelnasser Abidli
- Department of Soil Sciences and Agri-Food Engineering
- Laval University
- Quebec City
- Canada
- Centre in Green Chemistry and Catalysis (CGCC)
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13
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MacLean MWA, Reid LM, Wu X, Crudden CM. Chirality in Ordered Porous Organosilica Hybrid Materials. Chem Asian J 2014; 10:70-82. [DOI: 10.1002/asia.201402682] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Indexed: 11/10/2022]
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14
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García-Muñoz RA, Morales V, Linares M, Rico-Oller B. Synthesis of helical and supplementary chirally doped PMO materials. Suitable catalysts for asymmetric synthesis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:881-890. [PMID: 24397575 DOI: 10.1021/la403728a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Exciting helical mesoporous organosilicas including supplementary chirally doped moieties into their spiral walls were one-pot successfully synthesized with good structural order for, to the best of our knowledge, the first time. This one-step direct synthesis of helical chirally doped periodic mesoporous organosilica (PMO) materials was carried out by combination of a tartrate-based bis-organosilicon precursor with tetraethyl orthosilicate (TEOS) and two surfactants, cetyltrimethylammonium bromide and perfluoroctanoic acid (CTAB and PFOA). For comparison purposes, a conventional two-step postsynthetic grafting methodology was carried out. In this method, the chiral tartrate-based moieties were grafted onto the helical silica mesoporous materials previously prepared by the dual-templating approach (CTAB and PFOA). The chirally doped materials prepared by both methodologies exhibited helical structure and high BET surface area, pore size distributions, and total pore volume in the range of mesopores. Solid-state (13)C and (29)Si MAS NMR experiments confirmed the presence of the chiral organic precursor in the silica wall covalently bonded to silicon atoms. Nevertheless, one-pot direct synthesis led to a greater control of surface properties and presented larger incorporation of organic species compared with the two-step postsynthetic methodology. To further prove the potential feasibility of these materials in enantiomeric applications, Mannich diastereoselective asymmetric synthesis was chosen as catalytic test. In the case of the one-pot PMO material, the rigidity of the chiral ligand backbone provided by its integration into the inorganic helical wall in combination with the steric impediments supplied by the twisted geometry led to the reagents to adopt specific orientations. These geometrical constrictions resulted in an outstanding diastereomeric induction toward the preferred enantiomer.
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Affiliation(s)
- Rafael A García-Muñoz
- Department of Chemical and Environmental Technology and ‡Department of Chemical and Energy Technology, ESCET, Rey Juan Carlos University , C/Tulipán s/n, 28933, Móstoles, Madrid, Spain
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15
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Bera PK, Kumari P, Abdi SHR, Khan NUH, Kureshy RI, Subramanian PS, Bajaj HC. In situ-generated chiral iron complex as efficient catalyst for enantioselective sulfoxidation using aqueous H2O2 as oxidant. RSC Adv 2014. [DOI: 10.1039/c4ra09237f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study represents the rare combination of non-toxic Fe based catalyst/H2O2 as an efficient catalytic protocol for asymmetric sulfoxidation reaction.
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Affiliation(s)
- Prasanta Kumar Bera
- Discipline of Inorganic Materials and Catalysis
- CSIR-Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- Bhavnagar, India
| | - Prathibha Kumari
- Discipline of Inorganic Materials and Catalysis
- CSIR-Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- Bhavnagar, India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Sayed H. R. Abdi
- Discipline of Inorganic Materials and Catalysis
- CSIR-Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- Bhavnagar, India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Noor-ul H. Khan
- Discipline of Inorganic Materials and Catalysis
- CSIR-Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- Bhavnagar, India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Rukhsana I. Kureshy
- Discipline of Inorganic Materials and Catalysis
- CSIR-Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- Bhavnagar, India
- Academy of Scientific and Innovative Research (AcSIR)
| | - P. S. Subramanian
- Discipline of Inorganic Materials and Catalysis
- CSIR-Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- Bhavnagar, India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Hari C. Bajaj
- Discipline of Inorganic Materials and Catalysis
- CSIR-Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- Bhavnagar, India
- Academy of Scientific and Innovative Research (AcSIR)
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Fernandes CI, Saraiva MS, Nunes TG, Vaz PD, Nunes CD. Highly enantioselective olefin epoxidation controlled by helical confined environments. J Catal 2014. [DOI: 10.1016/j.jcat.2013.08.032] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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Gonçalves GAB, Pires SMG, Simões MMQ, Neves MGPMS, Marques PAAP. Three-dimensional graphene oxide: a promising green and sustainable catalyst for oxidation reactions at room temperature. Chem Commun (Camb) 2014; 50:7673-6. [DOI: 10.1039/c4cc02092h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three-dimensional graphene oxide foam (3DGO) was found to be a highly efficient and recyclable catalyst for the oxidation of thioanisole at room temperature.
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Affiliation(s)
- Gil A. B. Gonçalves
- TEMA
- Department of Mechanical Engineering
- University of Aveiro
- 3810-193 Aveiro, Portugal
| | - Sónia M. G. Pires
- QOPNA
- Department of Chemistry
- University of Aveiro
- 3810-193 Aveiro, Portugal
| | - Mário M. Q. Simões
- QOPNA
- Department of Chemistry
- University of Aveiro
- 3810-193 Aveiro, Portugal
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