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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1033549Generated: October 29, 2026

Benzofuran-2-carboxylic acid → 2-Benzofurancarbonyl chloride

https://huagongshe.com/reaction/1033549

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzofuran-2-carboxylic acidHCID 10331—
ReactantThionyl ChlorideHCID 24386—
SolventBenzeneHCID 241—
Product2-Benzofurancarbonyl chlorideHCID 38949—

Reaction Steps

Thionyl chloride (12.5 ml) was added to a suspension of benzofuran-2-carboxylic acid (20 g) in anhydrous benzene (250 ml). The mixture was refluxed for 3 hours, then allowed to cool down to room temperature. Removal of the volatiles left the desired acid chloride (21.8 g, 98%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05310930
Source datasetuspto-grants-1994_05
ORD IDord-d45c4f6c0e7346feb23031855d3cec3b
Source noteuspto-grants-1994_05