Tuesday, May 8, 2012

The Production of p-Anisaldehyde


4-Anisaldehyde (also known as: p-anisaldehyde, anisic aldehyde) is an organic compound that is commonly encountered in the fragrances, both synthetic and natural. The compound consists of a benzene ring substituted with an aldehyde and a methoxy group. It is a clear liquid with a strong aroma. Two related isomers ortho-anisaldehyde and meta-anisaldehyde are also known but less commonly encountered.

Anisaldehyde is prepared commercially by oxidation of methoxytoluene (p-cresyl methyl ether) using manganese dioxide. It can also be produced by oxidation of anethole, a related fragrance that is found in some alcoholic beverages.

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