2-Methyltetrahydrofuran, with the CAS number 96 - 47 - 9, is an organic compound. It is a clear, colorless liquid with a characteristic ether - like odor. The molecular formula of 2 - Methyltetrahydrofuran is C₅H₁₀O, and its molar mass is approximately 86.13 g/mol.
It has a boiling point in the range of around 78 - 80 °C and a melting point of about -136 °C. The density of 2 - Methyltetrahydrofuran is about 0.855 g/cm³ at 25 °C. It is soluble in water to a certain extent and is miscible with many organic solvents such as ethanol, ether, and benzene.
2 - Methyltetrahydrofuran is widely used in the chemical industry. It serves as an excellent solvent in various organic synthesis reactions. Due to its relatively low boiling point and good solubility properties, it can dissolve a wide range of organic compounds, facilitating the reaction process and improving reaction efficiency.
In the pharmaceutical industry, it is often used as a reaction medium for the synthesis of various drugs. It can provide a suitable environment for reactions to occur, helping to obtain high - quality pharmaceutical intermediates and final products. Additionally, it is used in the extraction and purification processes of natural products, as it can selectively dissolve target compounds while leaving impurities behind.
In the field of polymer chemistry, 2 - Methyltetrahydrofuran can be used as a solvent for polymer synthesis and processing. It can dissolve polymers and monomers, enabling the preparation of polymer solutions with appropriate concentrations for film - forming, coating, and other processes.
When using 2 - Methyltetrahydrofuran, proper safety precautions should be taken. It should be stored in a cool, dry, and well - ventilated place, away from sources of ignition and heat. When handling the product, wear appropriate personal protective equipment, such as safety glasses, gloves, and a lab coat.
In a laboratory setting, measure the required amount of 2 - Methyltetrahydrofuran using a graduated cylinder or pipette. Pour it slowly into the reaction vessel under a fume hood to avoid inhaling its vapor. During the reaction, control the reaction temperature and time according to the specific reaction requirements.
After use, if there is any remaining 2 - Methyltetrahydrofuran, it should be stored in a sealed container and labeled properly. Do not pour it directly into the sewer or environment, as it may cause pollution. It should be disposed of in accordance with relevant environmental protection regulations.
Case 1: Pharmaceutical Synthesis
In a research project for the synthesis of a new anti - cancer drug, 2 - Methyltetrahydrofuran was used as the reaction solvent. The reaction involved the condensation of two complex organic molecules. By using 2 - Methyltetrahydrofuran, the solubility of the reactants was significantly improved, and the reaction rate was increased. The yield of the desired intermediate product reached 80%, which was much higher than that obtained with other solvents. The high - quality intermediate was then further processed to obtain the final anti - cancer drug, which showed excellent efficacy in pre - clinical trials.
Case 2: Polymer Film Preparation
A research team was working on preparing a high - performance polymer film for electronic applications. They used 2 - Methyltetrahydrofuran to dissolve the polymer and a suitable additive. The homogeneous polymer solution was then cast onto a glass substrate to form a film. The use of 2 - Methyltetrahydrofuran resulted in a uniform film with excellent transparency and mechanical properties. The film was successfully applied in a flexible electronic device, demonstrating its potential in the field of electronics.
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