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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1099088Generated: October 29, 2026

p-Toluenesulfonic acid monohydrate → HCID 59216307, compound

https://huagongshe.com/reaction/1099088

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acid monohydrateHCID 521998—
ReactantEthylorthoformateHCID 53630039—
ReactantMethyl 2-fluoro-4-(oxoacetyl)benzoateHCID 59216303—
SolventTolueneHCID 1140—
ProductHCID 59216307HCID 59216307—

Reaction Steps

A mixture of methyl 2-fluoro-4-(oxoacetyl)benzoate (1.60 g), ethyl orthoformate (5.2 mL), p-toluenesulfonic acid monohydrate (70 mg) in toluene (20 mL) was heated under reflux for 3 h. After cooling, the mixture was concentrated. The residue was flash chromatographed on a silica gel column to give the desired product (0.63 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08143251B2
Source datasetuspto-grants-2012_03
ORD IDord-23edba30ab2342fa86b6817af43d17f1
Source noteuspto-grants-2012_03