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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1178203Generated: November 3, 2026

Ethyl Acetate → 3-Hydroxy-5-nitrobenzotrifluoride

https://huagongshe.com/reaction/1178203

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantBoron tribromideHCID 25134—
Reactant3-Methoxy-5-nitrobenzotrifluorideHCID 520597—
SolventChloroformHCID 6212—
Product3-Hydroxy-5-nitrobenzotrifluorideHCID 275625142.7%

Reaction Steps

To a solution of 1-Methoxy-3-nitro-5-trifluoromethyl-benzene (3.5 g, 15.83 mmol) in 20 ml of CHCl3 was added a solution of 1M boron tribromide (23.74 ml, 23.74 mmol) and the reaction was stirred at RT for 3 days resulting in conversion to product by TLC (20% EtOAc:Hexanes). The reaction was partitioned between CH2Cl2/1N NaOH and extracted. The aqueous phase was acidified with 1N HCl and again extracted with CH2Cl2. The organics were dried over sodium sulfate and stripped down in vacuo giving 3-Nitro-5-trifluoromethyl-phenol (1.4 g, 6.76 mmol) as a yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07276502B2
Source datasetuspto-grants-2007_10
ORD IDord-bbacc063bc684e079bf1db4fe00fc2b0
Source noteuspto-grants-2007_10