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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2391108Generated: November 2, 2026

Acetic Acid → 5-(4-Bromophenyl)-1,2-oxazole-4-carboxylic acid

https://huagongshe.com/reaction/2391108

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantWaterHCID 962—
ReactantEthyl 5-(4-bromophenyl)isoxazole-4-carboxylateHCID 22220993—
SolventHydrochloric AcidHCID 313—
Product5-(4-Bromophenyl)-1,2-oxazole-4-carboxylic acidHCID 22831701—

Reaction Steps

5-(4-Bromo-phenyl)-isoxazole-4-carboxylic acid ethyl ester (0.500 g, 1.69 mmol) was dissolved in concentrated hydrochloric acid (2 mL), acetic acid (5 mL), and H2O (5 mL), and the reaction was stirred at 100° C. overnight. The mixture was partitioned between EtOAc and H2O, and the organic layer was separated, dried over MgSO4, filtered, and concentrated to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08273780B2
Source datasetuspto-grants-2012_09
ORD IDord-bae1155603924c8ea866c158fa084018
Source noteuspto-grants-2012_09