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Magnesium methoxide, white powder, soluble in water, avoid contact with water, acid, oxide. Alkaline condensation catalyst, then the role of sodium methoxide gentle, sealed cool drying preservation of magnesium methanol is a deacidification agent. The deacidification effect is good, the disadvantage is for some easily damaged ink is not applicable, in wet paper easy to form sediments too early. Usually made into methanol solution. It was found that magnsium methanol can be often applied to catalysts in organic synthesis reactions. A considerable number of researchers used magnsium methanol as a catalyst in the synthesis of organic compounds, especially in the synthesis of ketoxime compounds ( selective metallurgy agents ). Due to the future period of economic development that will promote the development of the domestic hydrometallurgical process, the demand for dressing agents will continue to increase, as a mineral processing agent synthesis catalyst magnsium methanol demand will grow rapidly, so the application prospect of magnsium methanol is very good.
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Chemical Formula |
C2H6MgO2 |
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Exact Mass |
86 |
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Molecular Weight |
86 |
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m/z |
86 (100.0%), 88 (13.9%), 87 (12.7%), 87 (2.2%) |
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Elemental Analysis |
C, 27.81; H, 7.00; Mg, 28.14; O, 37.05 |
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Magnesium methoxide (chemical formula: C2H6MgO2) is an organic metal compound, belonging to metal alkoxides, with strong reducibility and sensitivity to water. The magnsium oxygen bond (Mg-O) in its molecular structure endows it with unique chemical activity, making it widely applicable in fields such as catalysts, organic synthesis, materials science, pharmaceutical intermediates, and cultural relic protection.
1. Alkaline condensation catalyst
It is an efficient catalyst for alkaline condensation reactions, with a smoother catalytic effect than sodium methoxide, and is suitable for systems that are sensitive to reaction conditions. For example, in the direct synthesis of dimethyl carbonate, it can catalyze the condensation reaction of methanol and carbon dioxide to produce dimethyl carbonate (DMC). The reaction conditions are mild (temperature ≤ 150 ℃, pressure ≤ 5MPa), and the catalytic activity and selectivity of magnsium methoxide are superior to traditional alkali catalysts. In addition, it can also be used for the synthesis of salicylaldehyde and its derivatives, efficiently constructing aromatic aldehyde structures by catalyzing aldehyde ketone condensation reactions.
2. Asymmetric synthesis catalyst precursor
It can serve as a precursor for chiral catalysts and form optically active catalytic systems by coordinating with chiral ligands such as tartaric acid derivatives. For example, in asymmetric aldol condensation reactions, the methanol magnsium tartrate complex can catalyze the asymmetric addition of acetone and aromatic aldehydes, producing chiral β - hydroxyketones with an enantiomeric excess (ee value) of over 90%. This type of catalyst has important application value in the synthesis of chiral drugs, such as antiviral drugs and antidepressants.
3. Catalyst for biodiesel preparation
Can be used as a heterogeneous catalyst for the preparation of biodiesel (fatty acid methyl ester). Its catalytic mechanism is based on the Lewis acidity of magnsium ions, which can activate the hydroxyl groups in methanol molecules and promote their ester exchange reaction with triglycerides. Research has shown that under the catalysis of magnsium methoxide, the yield of biodiesel can reach over 95%, and the catalyst can be reused more than 5 times without a significant decrease in activity.
Organic synthesis field: construction of carbon carbon bonds and preparation of functional molecules
1. Synthesis of alcohols, ethers, ketones, and aldehydes
It can undergo Grignard reaction with halogenated hydrocarbons (such as bromoethane and iodomethane) to generate organic magnsium reagents (such as ethyl magnsium bromide and methyl magnsium bromide), which can then be synthesized into alcohols, ethers, and other compounds through nucleophilic addition or substitution reactions. For example, ethyl magnsium bromide reacts with formaldehyde to produce ethanol, and reacts with ethylene oxide to produce ethylene glycol ether. In addition, it can catalyze the reduction reaction of carbonyl compounds, converting ketones or aldehydes into the corresponding alcohols.
2. Synthesis of Organic Lithium, Magnsium, and Aluminum Compounds
It is an important intermediate for synthesizing other organometallic compounds.
For example, by reacting with lithium metal, organic lithium compounds (such as methyl lithium) can be prepared, which are key reagents for synthesizing natural products and drugs; Reacting with aluminum chloride can generate organic aluminum compounds (such as dimethylaluminum magnsium), which are used for the preparation of polymerization catalysts.
3. Synthesis of Ketoxime Compounds
Can catalyze the condensation reaction of ketones and hydroxylamines to produce ketoxime compounds (such as cyclohexanone oxime). This type of compound is an important component of metallurgical agents such as flotation agents and extractants, and is widely used in wet metallurgical processes for metals such as copper, lead, and zinc. With the development of the domestic wet metallurgy industry, the demand for catalysts will continue to increase.
Materials Science: Preparation and Performance Control of Functional Materials
1. Preparation of high-purity magnsium oxide
It is the main raw material for preparing high-purity magnsium oxide (MgO). By thermal decomposition of magnesium methoxide, nano magnsium oxide powder with uniform particle size and good dispersion can be obtained, with a purity of over 99.9%. High purity magnsium oxide has important applications in ceramics, refractory materials, electronic packaging, and other fields. For example, as a dielectric material for ceramic capacitors, it can significantly improve the high-temperature resistance and stability of devices.
2. Precursors for Sol gel Process
It can be used as the precursor of the sol gel method to prepare metal oxide films (such as magnsium oxide films, aluminum oxide films) and ultra-fine/nano materials. For example, by controlling the hydrolysis conditions of magnsium methoxide, magnsium oxide nanoparticles with specific pore structures and surface properties can be prepared for use as catalyst carriers or adsorbents.
3. Modifiers for rubber composite materials
It can undergo chemical reactions with rubber molecular chains, introducing magnsium ion crosslinking points to enhance the mechanical properties and heat resistance of rubber. For example, adding magnsium methoxide to nitrile rubber (NBR) can increase the tensile strength of the rubber by 30% and the thermal decomposition temperature by 20 ℃, making it suitable for the preparation of high-temperature seals and oil resistant rubber products.
1. Synthesis of pharmaceutical intermediates
It is a key raw material for synthesizing various drug intermediates. For example, chiral β - hydroxyketone intermediates can be prepared by catalyzing asymmetric aldol condensation reactions for the synthesis of antiviral drugs such as oseltamivir; By catalyzing ester exchange reactions, chiral ester intermediates can be prepared for the synthesis of antidepressants such as fluoxetine.
2. Research on antiviral activity
It has a certain antiviral activity. Experiments have shown that it can inhibit the replication of chicken plague virus in chicken embryo culture, with a killing rate of 51% -100%.
In addition, compounds synthesized with magnsium methoxide derivatives as intermediates (such as magnsium porphyrin complexes) can inhibit the reverse transcriptase activity of AIDS virus (HIV), providing a direction for the development of new antiviral drugs.
3. Metabolic regulation effect
It can regulate the body's metabolic rate and assist in weight management. Obese women who supplemented with methanol magnsium in a low calorie diet showed significantly higher reductions in body weight and body fat compared to the control group (weight loss of 6.5kg vs. 5.6kg, body fat loss of 4.3kg vs. 3.5kg), indicating its potential application in the treatment of metabolic syndrome.
1. Paper deacidification agent
It is an efficient paper deacidification agent, whose alkalinity can neutralize acidic substances (such as sulfuric acid and nitric acid) in paper, preventing paper from becoming brittle and discolored due to acidification. For example, in the "Weituo" method, a mixed solution of methanol magnsium methanol Freon is used for deacidification treatment of ancient literature, which can significantly extend the lifespan of paper.
2. Formation of acid resistant buffer layer
After deacidification, the remaining methanol magnsium on the paper hydrolyzes under the action of water vapor to form magnsium hydroxide, which further reacts with carbon dioxide in the air to form magnsium carbonate, forming an acid resistant buffer layer. This buffer layer can sustainably neutralize newly generated acidic substances in the paper, achieving long-term protection.
1. Leather protectant
A protective film can be formed on the surface of leather to prevent aging caused by moisture and ultraviolet radiation, extending the service life of leather products. For example, adding magnsium methoxide to leather finishing agents can improve the water and light resistance of the coating, keeping the leather soft and shiny.
2. Fruit and vegetable preservatives
It can inhibit the respiration of fruits and vegetables, delay decay, and maintain freshness. For example, in the storage of perishable fruits and vegetables such as strawberries and tomatoes, magnsium methoxide treatment can significantly reduce the decay rate and extend the shelf life. Its mechanism of action may be related to inhibiting microbial growth and regulating endogenous hormone levels in fruits and vegetables.
This is our advanced product Magnesium Methoxide.
Remark: BLOOM TECH(Since 2008), ACHIEVE CHEM-TECH is the subsidiary of us.
The following are brief steps and related reaction equations for preparing Magnsium methodology through the reaction of carbon monoxide, hydrogen gas, and metallic magnsium:
Reaction equation:
Mg + CO + H2 → Mg(CO)H2
Mg(CO)H2 + 2CH3OH → Mg(CH3O)2 + CO2 + 2H2
Among them, Mg represents metallic magnsium, CO represents carbon monoxide, H2 represents hydrogen, Mg (CO) H2 represents the complex of carbon monoxide and hydrogen, CH3OH represents methanol, Mg (CH3O) 2 represents magnsium methodology, and CO2 represents carbon dioxide. The key step of the reaction is the reaction of magnsium metal with carbon monoxide and hydrogen gas to form a complex of carbon monoxide and hydrogen gas, which then further reacts with methanol to form the Magnsium method.
Experimental steps:
1. Prepare laboratory equipment: Prepare reaction vessels (such as round bottomed flasks) and heating devices.
2. Pre treatment of reaction vessels and reagents: Clean the reaction vessels thoroughly and blow them with dry nitrogen to ensure a dust-free and anhydrous environment. Solvents can be treated with desiccants (such as molecular sieves) to remove moisture.
3. Assembly of reaction device: Put the metal magnsium into the reaction vessel.
4. Adding solvent: Add the solvent to the reaction vessel to provide the reaction medium.
5. Adding carbon monoxide and hydrogen: Inject carbon monoxide and hydrogen into the reaction vessel while stirring or heating the reaction system. Carbon monoxide and hydrogen will react with magnsium metal.
6. Reaction progress: Under appropriate temperature and pressure conditions, allow the reaction to proceed for a period of time to ensure sufficient reaction.
7. Cooling the reaction vessel: After the reaction is completed, remove the reaction vessel from the heating device and let it cool to room temperature.
8. Separation of products: Separate the products using appropriate methods (such as filtration or centrifugation).
9. Drying product: The separated Magnesium method can be dried by vacuum drying or at low temperatures.
The synthesis of magnsium methylate includes direct synthesis, alkyl magnsium, alcoholysis and lipolysis Many literatures have introduced the synthesis of mineral dressing reagents by using magnsium methylate as the intermediate product of the reaction, and most of them use iodine as the initiator, but almost no single report on the synthesis process of magnsium methylate Therefore, based on the synthesis concept of "simple and easy to obtain raw materials, mild reaction conditions, simple process route and low cost", magnsium methylate was synthesized by direct method, and the synthesized magnesium methoxide was characterized by differential thermal analysis and infrared spectrum, which is of great significance for the development and application of magnsium methylate.
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