4-Anisaldehyde

4-Anisaldehyde

2D structure of 4-Anisaldehyde

4-Anisaldehyde, also known as p-anisaldehyde, is an organic compound with the formula C₈H₈O₂. It is an aromatic aldehyde and a derivative of anisole. This compound is a colorless to pale yellow liquid with a strong aroma, often described as sweet and floral, reminiscent of anise or licorice.

Chemical Structure and Properties

4-Anisaldehyde consists of a benzene ring substituted with a methoxy group (–OCH₃) at the para position and an aldehyde group (–CHO) at the same position. The presence of these functional groups contributes to its distinctive chemical properties and reactivity.

Physical Properties

4-Anisaldehyde is a liquid at room temperature. It has a boiling point of approximately 248 °C and a melting point of -1 °C. It is slightly soluble in water but more soluble in organic solvents such as ethanol and diethyl ether.

Chemical Properties

As an aldehyde, 4-anisaldehyde can undergo typical aldehyde reactions, such as oxidation to form anisic acid and reduction to form anisyl alcohol. The methoxy group can also participate in electrophilic aromatic substitution reactions.

Uses

4-Anisaldehyde is used in the fragrance and flavor industries due to its pleasant aroma. It is a key ingredient in the formulation of perfumes and is also used to impart flavor in food products. Additionally, it serves as an intermediate in the synthesis of other organic compounds, including pharmaceuticals and agrochemicals.

Safety and Handling

4-Anisaldehyde should be handled with care, as it can cause irritation to the skin, eyes, and respiratory tract. Proper protective equipment, such as gloves and goggles, should be used when handling this chemical. It should be stored in a cool, dry place away from sources of ignition.

Related Pages

• Aldehyde
• Anisole
• Aromatic compound
• Fragrance