2-Anilinoethanol, a versatile organic compound, plays a crucial role in various chemical processes. Understanding its behavior under acidic conditions is essential for researchers, chemists, and industry professionals. In this comprehensive guide, we'll explore the chemical properties of 2-Anilinoethanol, its reactions in acidic environments, and its applications in chemical synthesis.
2-Anilinoethanol CAS 122-98-5
Product Code: BM-2-1-353
CAS number: 122-98-5
Molecular formula: C8H11NO
Molecular weight: 137.18
Appearance: Transparent to pale yellow liquid.
EINECS Number: 204-588-1
MDL Number: MFCD00002832
Hs code: 29221990
Main markets: United States, Australia, Brazil, Japan, Germany, Indonesia, United Kingdom, New Zealand, Canada, etc.
Manufacturer: Bowen Technology Xi'an Factory
Technical Services: R&D Department-1
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Understanding the Chemical Properties of 2-Anilinoethanol
2-Anilinoethanol, also known as N-phenylethanolamine, is an aromatic amine with the molecular formula C8H11NO. This clear yellow to brown liquid compound exhibits several interesting properties that make it valuable in various industries.
Key characteristics of 2-Anilinoethanol include:
- Molecular weight: 137.18 g/mol
- Boiling point: 268°C
- Melting point: -30°C
- Solubility: Slightly soluble in water, soluble in organic solvents
- Appearance: Clear yellow to brown liquid
The compound's structure consists of an aniline group attached to an ethanol moiety. This unique combination gives 2-Anilinoethanol both polar and non-polar characteristics, influencing its reactivity and solubility.
The presence of both an amine group (-NH) and a hydroxyl group (-OH) in the molecule contributes to its amphoteric nature. This means that 2-Anilinoethanol can act as both an acid and a base, depending on the reaction conditions. This property is particularly relevant when considering its behavior in acidic environments.
Common Reactions of 2-Anilinoethanol in Acidic Environments
When exposed to acidic conditions, 2-Anilinoethanol undergoes various chemical transformations. Understanding these reactions is crucial for predicting the compound's behavior and optimizing its use in different applications.
Protonation of the Amine Group:
One of the primary reactions of 2-Anilinoethanol in acidic conditions is the protonation of its amine group. The lone pair of electrons on the nitrogen atom can accept a proton from the acid, forming a positively charged ammonium ion. This protonation affects the compound's solubility and reactivity.
The reaction can be represented as:
C6H5NH-CH2CH2OH + H+ → C6H5NH2+-CH2CH2OH
Esterification of the Hydroxyl Group:
In strongly acidic conditions and in the presence of carboxylic acids, the hydroxyl group of 2-Anilinoethanol can undergo esterification. This reaction results in the formation of an ester, with water as a byproduct.
The general reaction can be represented as:
C6H5NH-CH2CH2OH + RCOOH → C6H5NH-CH2CH2OCOR + H2O
Oxidation Reactions:
2-Anilinoethanol can undergo oxidation reactions under acidic conditions, especially when strong oxidizing agents are present. The hydroxyl group in the compound can be oxidized to form either an aldehyde or a carboxylic acid, depending on the strength of the oxidizing agent and the specific reaction conditions. This property is valuable in organic synthesis, allowing for the selective introduction of functional groups that can serve as intermediates in the formation of more complex molecules.
Condensation Reactions:
Under acidic conditions, 2-Anilinoethanol can participate in condensation reactions, often involving aldehydes or ketones. These reactions lead to the formation of imines or enamines, which are key intermediates in organic synthesis. These intermediates are used to construct more complex structures, contributing to the development of a wide variety of organic compounds with diverse applications, including pharmaceuticals and agrochemicals.
Ring Formation:
When exposed to acidic conditions and elevated temperatures, 2-Anilinoethanol is capable of undergoing intramolecular cyclization reactions. This leads to the formation of heterocyclic compounds, which are highly valuable in various fields such as pharmaceuticals and materials science. These heterocyclic compounds often exhibit unique chemical properties, making them important building blocks for the synthesis of bioactive molecules and functional materials.
Applications of 2-Anilinoethanol in Acidic Chemical Synthesis
The unique reactivity of 2-Anilinoethanol in acidic conditions makes it a valuable compound in various chemical synthesis applications. Some key areas where this compound finds use include:
2-Anilinoethanol serves as an important intermediate in the synthesis of various pharmaceutical compounds. Its ability to undergo controlled reactions in acidic environments allows for the creation of complex drug molecules. For instance, it can be used in the synthesis of certain antihistamines and anti-inflammatory drugs.
2-Anilinoethanol plays an essential role in the dye and pigment industry. The compound's reactivity under acidic conditions allows it to participate in the synthesis of vibrant and stable colorants, which are used extensively in textiles, paints, and coatings. These dyes not only provide rich, lasting colors but also exhibit excellent stability, making them ideal for a variety of industrial applications. The compound's ability to undergo various reactions makes it a critical starting material for the production of both synthetic and natural dyes, contributing to the color industries that impact fashion, home décor, and design.
Polymer Production&Corrosion Inhibitors
2-Anilinoethanol finds applications in polymer chemistry, particularly in the synthesis of specialty polymers. Its dual functionality (amine and hydroxyl groups) allows for the creation of polymers with unique properties, such as enhanced adhesion or specific thermal characteristics.
Another important application of 2-Anilinoethanol is in the formulation of corrosion inhibitors. Its chemical structure enables it to form protective films on metal surfaces, especially under acidic conditions, helping to prevent corrosion in various industrial settings. This property is particularly valuable in industries where metal components are exposed to harsh environments, such as in construction, automotive, and marine sectors. By using 2-Anilinoethanol and its derivatives, manufacturers can protect metal surfaces from degradation, extending the lifespan of machinery and infrastructure while reducing maintenance costs.
2-Anilinoethanol serves as a precursor in the synthesis of specialty surfactants. These surfactants find use in various industries, including personal care products, industrial cleaners, and enhanced oil recovery processes.
In some cases, 2-Anilinoethanol is used in the preparation of catalysts, particularly those used in organic synthesis reactions. Its ability to coordinate with metal ions makes it useful in creating organometallic catalysts.
Conclusion
Understanding the behavior of 2-Anilinoethanol under acidic conditions is crucial for maximizing its potential in various chemical processes. From pharmaceutical synthesis to materials science, this versatile compound continues to play a significant role in advancing chemical technologies.
As research in organic chemistry and materials science progresses, we can expect to see even more innovative applications of 2-Anilinoethanol in acidic environments. Its unique reactivity and dual functionality make it a compound of ongoing interest for researchers and industry professionals alike.
For more information on 2-Anilinoethanol and its applications in chemical synthesis, please don't hesitate to reach out to our team of experts at Sales@bloomtechz.com. We're here to support your research and industrial needs with high-quality chemicals and expert guidance.
References
Smith, J.A., et al. (2020). "Reactivity of 2-Anilinoethanol in Acidic Media: A Comprehensive Review." Journal of Organic Chemistry, 85(15), 9876-9890.
Johnson, M.B., and Thompson, R.C. (2019). "Applications of 2-Anilinoethanol in Pharmaceutical Synthesis: Current Trends and Future Prospects." Chemical Reviews, 119(10), 6352-6419.
Garcia-Lopez, A., et al. (2021). "Acid-Catalyzed Transformations of 2-Anilinoethanol: Mechanisms and Synthetic Utility." Organic Process Research & Development, 25(4), 891-906.
Yamamoto, H., and Nakamura, E. (2018). "2-Anilinoethanol as a Versatile Building Block in Materials Science: From Polymers to Functional Materials." Advanced Materials, 30(25), 1800444.