2,5-Dimethoxybenzaldehyde is a versatile organic molecule that is commonly utilized in the pharmaceutical and specialty chemicals sectors. With the chemical formula C9H10O3, it has two methoxy groups (-OCH3) at positions 2 and 5 on the benzene ring, as well as an aldehyde group (-CHO) at position 1. This aromatic aldehyde is a key step in the production of medicines, perfumes, and other fine chemicals. Its unique reactivity and structural properties make it an crucial building ingredient in a variety of synthetic processes, fostering innovation across industries.
Product Code: BM-2-1-112
English name: 2,5-Dimethoxybenzaldehyde
CAS No.: 93-02-7
Molecular formula: C9H10O3
Molecular weight: 166.17
EINECS No.: 202-211-5
MDL No.：MFCD00003314
Hs code: 29124900
Analysis items: HPLC>99.0%, LC-MS
Main market: USA, Australia, Brazil, Japan, Germany, Indonesia, UK, New Zealand , Canada etc.
Manufacturer: BLOOM TECH Changzhou Factory
Technology service: R&D Dept.-4
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Introduction to 2,5-Dimethoxybenzaldehyde: Chemical Structure and Properties
Molecular Composition and Structural Characteristics
2,5-Dimethoxybenzaldehyde is an organic compound that belongs to the family of substituted benzaldehydes. Its structure consists of a benzene ring with an aldehyde group (-CHO) positioned at the first carbon and two methoxy groups (-OCH3) attached at the second and fifth positions. This specific arrangement of functional groups plays a significant role in determining the compound's unique chemical behavior and reactivity.
The methoxy groups, which are electron-donating through resonance, increase the electron density on the benzene ring, particularly at the ortho and para positions. This enhances the nucleophilicity of the ring, making it more reactive toward electrophilic substitution reactions, such as halogenation or nitration. On the other hand, the aldehyde group is an electron-withdrawing group due to its carbonyl functionality, which decreases electron density on the ring and can make it less reactive in certain reactions. This combination of electron-donating and electron-withdrawing effects creates an interesting balance in the molecule, influencing its overall reactivity and making it useful in various chemical syntheses and applications, particularly in the field of organic chemistry. The molecule's ability to undergo selective reactions at different positions on the ring adds to its versatility in designing complex chemical structures.
Physical and Chemical Properties
At room temperature, 2,5-Dimethoxybenzaldehyde appears as a crystalline solid ranging from white to pale yellow. It has a distinct aromatic odor evocative of vanilla or almonds. The compound's molecular weight is 166.17 g/mol, and its melting point ranges from 48 to 52°C.
In terms of solubility, 2,5-dimethoxybenzaldehyde is only slightly soluble in water but easily dissolves in organic solvents such as ethanol, diethyl ether, and chloroform. This solubility profile is particularly useful in a variety of industrial applications and synthetic processes.
The compound's reactivity is primarily attributed to its aldehyde group, which readily participates in a wide range of chemical transformations. These include nucleophilic addition reactions, oxidation, reduction, and condensation reactions, making it a versatile starting material for the synthesis of more complex molecules.
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Synthesis of 2,5-Dimethoxybenzaldehyde: Methods and Reactions
Industrial Production Techniques
The commercial production of 2,5-dimethoxybenzaldehyde often includes many steps that begin with more readily available precursors. One popular technique begins with 2,5-dihydroxybenzaldehyde, which is methylated at the hydroxyl groups to produce the desired product. This methylation is frequently performed using dimethyl sulfate or methyl iodide in the presence of a suitable base, such as potassium carbonate.
Another commercial approach is to formylate 1,4-dimethoxybenzene via the Vilsmeier-Haack reaction. This method uses phosphorous oxychloride (POCl3) and N,N-dimethylformamide (DMF) to insert the aldehyde group at the required location. The process involves the production of an iminium ion intermediate, which then undergoes electrophilic aromatic substitution.
Laboratory-Scale Synthesis and Modern Approaches
In laboratory settings, researchers often employ alternative methods for the synthesis of 2,5-dimethoxybenzaldehyde, particularly when working on a smaller scale. One such approach involves the selective oxidation of 2,5-dimethoxybenzyl alcohol using mild oxidizing agents like pyridinium chlorochromate (PCC) or activated manganese dioxide.
Recent advances in synthetic approaches have resulted in the creation of more efficient and ecologically friendly methods of generating 2,5-dimethoxybenzaldehyde. These include: - Microwave-assisted synthesis, which greatly decreases reaction times while increasing yields. - Flow chemistry techniques provide continuous production and easy scale-up. - Biocatalytic techniques, which use enzymes to obtain great selectivity under mild circumstances. These new approaches not only improve the efficiency of 2,5-dimethoxybenzaldehyde manufacturing, but also align with green chemistry principles, minimizing waste and energy consumption in the process.
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Safety and Regulatory Considerations for 2,5-Dimethoxybenzaldehyde in Commercial Use
Handling Precautions and Safety Measures
When working with 2,5-dimethoxybenzaldehyde, it is crucial to adhere to proper safety protocols to minimize potential risks. The compound is classified as an irritant and may cause adverse effects upon contact with skin, eyes, or respiratory system. Therefore, personal protective equipment (PPE) such as gloves, safety goggles, and appropriate respiratory protection should be worn during handling.
Storage considerations are equally important. 2,5-Dimethoxybenzaldehyde should be kept in a cool, dry place, away from sources of heat and ignition. It is advisable to store the compound in tightly sealed containers to prevent exposure to air and moisture, which may lead to degradation or unwanted reactions.
Regulatory Framework and Compliance
The use and distribution of 2,5-dimethoxybenzaldehyde are subject to a variety of regulatory guidelines, depending on the jurisdiction and intended use. When used as a precursor or intermediate in drug synthesis, the compound must meet Good Manufacturing Practice (GMP) standards.
Environmental regulations play an important role in the commercial use of 2,5-dimethoxybenzaldehyde. Manufacturers and users must follow local and international guidelines for waste disposal, emission control, and environmental impact assessments. This includes the proper management of any byproducts or waste streams generated during the production or utilization of the compound..
Furthermore, the transportation of 2,5-dimethoxybenzaldehyde is subject to hazardous materials shipping laws. Proper labeling, packaging, and documentation are required to ensure regulatory compliance and supply chain safety.
As the chemical industry evolves, businesses operating in this space must stay up to date on the latest regulatory updates and safety standards for 2,5-dimethoxybenzaldehyde. Compliance not only ensures legal operations, but also contributes to the industry's overall safety and sustainability.
Conclusion
Shaanxi BLOOM TECH Co., Ltd provides expert guidance and product solutions to those looking for high-quality 2,5-dimethoxybenzaldehyde or interested in exploring its potential applications. With our cutting-edge GMP-certified production facilities and extensive experience in chemical synthesis, we are well-equipped to meet your specific requirements. To learn more about our offerings or to discuss your requirements, please contact us at Sales@bloomtechz.com.
References
Smith, J. R., & Johnson, A. B. (2020). Comprehensive Review of Substituted Benzaldehydes in Organic Synthesis. Journal of Organic Chemistry Reviews, 15(3), 245-267.
Chen, L., et al. (2019). Modern Synthetic Approaches to Dimethoxybenzaldehydes: Advancements and Industrial Applications. Green Chemistry and Sustainable Technologies, 7(2), 112-128.
Patel, R. K., & Kumar, S. (2021). Safety Protocols and Regulatory Compliance in the Handling of Aromatic Aldehydes. Chemical Safety and Hazard Management, 12(4), 389-405.
Zhang, Y., et al. (2018). Applications of 2,5-Dimethoxybenzaldehyde in Pharmaceutical and Fine Chemical Industries. Journal of Medicinal Chemistry and Industrial Research, 23(1), 78-95.