4-Ethylbenzoic Acid
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619-64-7CCc1ccc(C(=O)O)cc1ZQVKTHRQIXSMGY-UHFFFAOYSA-N4-Ethylbenzoic acid is a member of benzoic acids.
619-64-7DTXSID3073212CHEMBL100768CHEBI:900742.89
2.85
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Warning
H315 (43.8%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 16 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Verwenden4-Ethylbenzoic acid was used in the synthesis of ethyl 4-vinyl-α-cyano-β-phenylcinnamate. It was also used to functionalize the edge of “pristine” graphite in the presence of polyphosphoric acid/phosphorus pentoxide.
synthetischeThe preparation of 4-ethylbenzoic acid can be done in the following steps:1. Add ethylbenzene and trichloroacetaldehyde in the reaction kettle.2. Add anhydrous aluminum trichloride in batches at 0 °C.3. Stir and react at -10 ~ 0 °C for 2 hours after the addition.4. Add dilute hydrochloric acid to the mixed solution to decompose the remaining aluminum trichloride.5. Wash with NaHCO3 and water.6. Distill the organic layer to recover ethylbenzene.7. Distill to obtain p-ethylbenzene-2,2,2-trichloroethanol.8. Dissolve the trichloroethanol in methanol.9. Add NaOH solution and stir.10. Add dropwise 30% hydrogen peroxide aqueous solution to the mixture.11. Stir until the trichloroethanol disappears.12. Acidify with HCl to obtain crystalline 4-ethylbenzoic acid.
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