Overview
2-Methylcyclohexenone is an organic compound belonging to the cyclohexenone family. It is widely used as a versatile intermediate in chemical synthesis due to its reactive double bond and carbonyl group. The compound is particularly valued in the fragrance and pharmaceutical industries for its ability to undergo various chemical transformations. Its synthesis typically involves the oxidation or dehydrogenation of methylcyclohexanol derivatives. The compound's reactivity makes it a useful building block for more complex molecules, including flavors, fragrances, and active pharmaceutical ingredients (APIs).
Physical and Chemical Properties
2-Methylcyclohexenone is a colorless to pale yellow liquid with a characteristic odor. It has a molecular weight of 110.15 g/mol and a boiling point between 160-162 °C. The compound is soluble in common organic solvents like ethanol, ether, and acetone but is only slightly soluble in water. Key chemical properties include its reactivity as an α,β-unsaturated ketone, making it prone to nucleophilic additions and cycloadditions. It is also flammable and should be handled with care to avoid ignition sources. The density ranges from 0.92-0.94 g/cm³, and it should be stored away from oxidizing agents to prevent decomposition.
Main Applications
2-Methylcyclohexenone serves as a critical intermediate in organic synthesis, particularly in the production of fragrances and pharmaceuticals. Its structure allows for the creation of complex molecules through reactions such as Michael additions, Diels-Alder reactions, and hydrogenations. In the fragrance industry, it is used to synthesize musky and woody notes. Pharmaceutical applications include its role as a precursor for APIs and other bioactive compounds. Additionally, it finds use in agrochemicals and specialty chemicals, where its reactivity is leveraged to create targeted products.
Safety and Storage
Due to its flammable nature and potential health hazards, 2-methylcyclohexenone requires careful handling. Personal protective equipment (PPE) such as gloves, goggles, and lab coats should be worn when working with this compound. Avoid inhalation, skin contact, and ingestion. Storage conditions include keeping the compound in a cool, dry place away from direct sunlight and oxidizing agents. Containers should be tightly sealed to prevent evaporation and contamination. In case of spills, absorb with an inert material and dispose of according to local regulations.
B2B Procurement Guide
When procuring 2-methylcyclohexenone, verify the CAS number (1121-18-2) to ensure product authenticity. Purity levels should be confirmed through certificates of analysis (CoA), with common grades ranging from 95% to 99%. Reliable suppliers should provide material safety data sheets (MSDS) and comply with international standards such as REACH or ISO. Pricing varies based on quantity and purity, with bulk purchases often attracting discounts. Consider logistics and storage requirements, as the compound may require hazardous material shipping protocols.
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