Abstract
Dawson-type heteropolyoxometalate compounds (HPC) P2M18O62 -6 (M= Mo, W) have received increasing attention in the catalytic field due to the combination of redox and acidic properties in the same structure. It has been proved that the introduction of vanadium into the Keggin framework is beneficial for redox catalysis, shifting its activity from acid to redox-dominated.
In this work we prepared and characterized vanadium (V) substituted Wells-Dawson heteropolysalt (WDKV). Fresh solid samples were characterized by 31P MAS-NMR, FTIR, SEM, XRD, TGA and Potentiometric titration measurements. Also, we performed the oxidation of a 1,4-dihydropyridine using WDKV as catalyst in acetonitrile media, with H2O2 as oxidant agent. The optimal procedure is the following: 1 mmol% of WDKV, a ratio 1,4-DHP: H2O2 (1:214) at reflux of acetonitrile. It must be noted that along all reactions, no secondary products were observed.
Keywords: Heteropolycompound, Oxidation, Hydrogen peroxide. 1, 4-dihydropyridine.
Current Catalysis
Title:Vanadium-Substituted Wells-Dawson Potassium Salt as Catalyst for Liquid phase Oxidation of 1,4-dihydropyridine Derivative
Volume: 3 Issue: 2
Author(s): Laura M. Sanchez, Angel G. Sathicq, Graciela T. Baronetti and Horacio J. Thomas
Affiliation:
Keywords: Heteropolycompound, Oxidation, Hydrogen peroxide. 1, 4-dihydropyridine.
Abstract: Dawson-type heteropolyoxometalate compounds (HPC) P2M18O62 -6 (M= Mo, W) have received increasing attention in the catalytic field due to the combination of redox and acidic properties in the same structure. It has been proved that the introduction of vanadium into the Keggin framework is beneficial for redox catalysis, shifting its activity from acid to redox-dominated.
In this work we prepared and characterized vanadium (V) substituted Wells-Dawson heteropolysalt (WDKV). Fresh solid samples were characterized by 31P MAS-NMR, FTIR, SEM, XRD, TGA and Potentiometric titration measurements. Also, we performed the oxidation of a 1,4-dihydropyridine using WDKV as catalyst in acetonitrile media, with H2O2 as oxidant agent. The optimal procedure is the following: 1 mmol% of WDKV, a ratio 1,4-DHP: H2O2 (1:214) at reflux of acetonitrile. It must be noted that along all reactions, no secondary products were observed.
Export Options
About this article
Cite this article as:
Sanchez M. Laura, Sathicq G. Angel, Baronetti T. Graciela and Thomas J. Horacio, Vanadium-Substituted Wells-Dawson Potassium Salt as Catalyst for Liquid phase Oxidation of 1,4-dihydropyridine Derivative, Current Catalysis 2014; 3 (2) . https://dx.doi.org/10.2174/2211544702666131224233041
DOI https://dx.doi.org/10.2174/2211544702666131224233041 |
Print ISSN 2211-5447 |
Publisher Name Bentham Science Publisher |
Online ISSN 2211-5455 |
- Author Guidelines
- Graphical Abstracts
- Fabricating and Stating False Information
- Research Misconduct
- Post Publication Discussions and Corrections
- Publishing Ethics and Rectitude
- Increase Visibility of Your Article
- Archiving Policies
- Peer Review Workflow
- Order Your Article Before Print
- Promote Your Article
- Manuscript Transfer Facility
- Editorial Policies
- Allegations from Whistleblowers
- Announcements
Related Articles
-
An Updated Patent Therapeutic Agents Targeting MMPs
Recent Patents on Anti-Cancer Drug Discovery Endothelial Expression of MHC Class II Molecules in Autoimmune Disease
Current Pharmaceutical Design Active Targeted Drug Delivery for Microbes Using Nano-Carriers
Current Topics in Medicinal Chemistry Cellular Responses to 24R,25-dihydroxyvitamin D3 in Bone and Cartilage
Immunology, Endocrine & Metabolic Agents in Medicinal Chemistry (Discontinued) Oral Inflammation and Bacteremia: Implications for Chronic and Acute Systemic Diseases Involving Major Organs
Cardiovascular & Hematological Disorders-Drug Targets Extraction, Isolation and Analysis of Chondroitin Sulfate Glycosaminoglycans
Recent Patents on Food, Nutrition & Agriculture A Review of Light Sources and Enhanced Targeting for Photodynamic Therapy
Current Medicinal Chemistry Currently Used Antimycotics: Spectrum, Mode of Action and Resistance Occurrence
Current Drug Targets Alzheimer’s Disease-like Early-phase Brain Pathogenesis: Self-curing Amelioration of Neurodegeneration from Pro-inflammatory ‘Wounding’ to Anti-inflammatory ‘Healing’
Current Alzheimer Research Growth Restriction: Etiology, Maternal and Neonatal Outcome. A Review
Current Women`s Health Reviews Neurotrophin-3 Stimulates Migration of Mesenchymal Stem Cells Overexpressing TrkC
Current Medicinal Chemistry Plant Polyphenols and Oral Health: Old Phytochemicals for New Fields
Current Medicinal Chemistry Patents on Quorum Quenching: Interfering with Bacterial Communication as a Strategy to Fight Infections
Recent Patents on Biotechnology Inhibition of Matrix Metalloproteinases as a Feasible Therapeutic Target in Rheumatoid Arthritis
Current Rheumatology Reviews Recent Patents on Cell-based Approaches to Collagen Enrichment and Repair
Recent Patents on Regenerative Medicine Medicinal Use of Lincosamides and Microbial Resistance to Them
Anti-Infective Agents in Medicinal Chemistry Periodontal Pathogens are Likely to be Responsible for the Development of Ankylosing Spondylitis
Current Rheumatology Reviews Volsurf Descriptors to Analyse Anti-HCV and Cytotoxic Activities of Sesquiterpene Lactones from Asteraceae Family
Letters in Drug Design & Discovery DNA Microarrays - An Armory for Combating Infectious Diseases in the New Century
Infectious Disorders - Drug Targets In Vitro and In Silico Studies of Two 1,4-Naphthoquinones and Their Topical Formulation in Bigels
Current Drug Delivery