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Phenylacetaldehyde is used for the preparation of fragrances and polymers like polyesters, which find application as a rate controlling additive in polymerization reactions. It is an active component of fragrances and floral scent due to its honey-like sweet character and finds application in flavored cigarettes and beverages. It is an insect attractant and utilized in blacklight trap for pests. It is also used as a building block in the synthesis of more complex chemicals, such as resmethrin. Furthermore, it is used in association with acetic anhydride and allyltrimethylsilane in three-component coupling process catalyzed by LiBF4 providing homoallylic acetates.
Forms polymer on standing. This can be reconverted to the monomer by distillation.
Le Guenic, S.; Ceballos, C.; Len, C. Synthesis of Phenylacetaldehyde from 1-Phenylethan-1, 2-diol by Microwave-Assisted Dehydration in Water. Catal. Lett. 2015, 145 (10), 1851-1855.
Gou, M. L.; Wang, R.; Qiao, Q.; Yang, X. Effect of mesoporosity by desilication on acidity and performance of HZSM-5 in the isomerization of styrene oxide to phenylacetaldehyde. Microporous Mesoporous Mater. 2015, 206, 170-176.
Gefahrenhinweise (EU): H227-H302-H315-H319-H335
Combustible liquid. Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.