2-Undecanone

2-Undecanone

Structural formula of 2-Undecanone

2-Undecanone, also known as methyl nonyl ketone, is an organic compound with the chemical formula C₁₁H₂₂O. It is a ketone that is commonly found in the essential oils of various plants and is used in the fragrance and flavor industries.

Chemical Properties

2-Undecanone is a colorless to pale yellow liquid at room temperature. It has a boiling point of approximately 231 °C and a melting point of -26 °C. The compound is insoluble in water but is soluble in most organic solvents.

Occurrence

2-Undecanone occurs naturally in the essential oils of several plants, including wild tomato species and rue. It is believed to serve as a natural insect repellent in these plants.

Uses

2-Undecanone is used in the perfume industry due to its pleasant fragrance. It is also used as a flavoring agent in the food industry. Additionally, it is employed as an insect repellent, particularly against mosquitoes and ticks.

Synthesis

The synthesis of 2-Undecanone can be achieved through various chemical reactions, including the oxidation of undecanol or the Friedel-Crafts acylation of nonane with acetyl chloride.

Safety

2-Undecanone is generally considered to be of low toxicity to humans. However, as with many chemicals, it should be handled with care, using appropriate protective equipment to avoid skin and eye contact.

Related Pages

• Ketone
• Essential oil
• Insect repellent
• Fragrance