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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1502802Generated: October 29, 2026

Ethanol → Benzoic acid, 2-bromo-4-iodo-, ethyl ester

https://huagongshe.com/reaction/1502802

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSulfuric AcidHCID 1118—
Reactant2-Bromo-4-iodobenzoic acidHCID 20373981—
ProductBenzoic acid, 2-bromo-4-iodo-, ethyl esterHCID 7113850792%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a stirred solution of 4-iodo-2-bromobenzoic acid (5 g, 15.29 mmol) in ethyl alcohol (EtOH; 100 mL) was added sulfuric acid (H2SO4; 5 mL), and the reaction mixture was heated at 80° C. for 18 h. The reaction mixture was cooled to 25° C. and concentrated under reduced pressure. The residue was diluted with EtOAc (2×100 mL) and washed with water (100 mL). The combined EtOAc extracts were washed with brine, dried over Na2SO4 and concentrated under reduced pressure to afford the compound as a pale yellow solid (5 g, 92%): 1H NMR (400 MHz, DMSO-d6) δ 8.04 (d, J=1.2 Hz, 1H), 7.71 (d, J=7.6 Hz, 1H), 7.51 (d, J=8.4 Hz, 1H), 4.41 (q, J=7.2 Hz, 2H), 1.41 (t, J=7.2 Hz, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09211280B2
Source datasetuspto-grants-2015_12
ORD IDord-776fcb5615334177b9d6327258458761
Source noteuspto-grants-2015_12