Citral is widely used in the fragrances and fine chemicals industry. Owing to the presence of several unsaturated groups, citral has been investigated as a model compound for a wide array of reactions.[1] p-Cymene and p-α-dimethylstyrene are two useful products that can be obtained from citral by cyclodehydration, and they are important starting chemicals for the production of fragrances, pharmaceuticals, and fine chemicals. The compounds can be ...